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FFmpeg/libavcodec/mpegvideo_enc.c
Christophe Massiot b6d0700058 Pass VBV delay to the calling application via ctx 
VBV delay is useful for T-STD compliance in some TS muxers. It is
certainly possible to retrieve it by parsing the output of FFmpeg, but
getting it from the context makes it simpler and less error-prone.

Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-02-16 02:07:51 +01:00

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/*
* The simplest mpeg encoder (well, it was the simplest!)
* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* The simplest mpeg encoder (well, it was the simplest!).
*/
#include "libavutil/intmath.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "mpegvideo_common.h"
#include "h263.h"
#include "mjpegenc.h"
#include "msmpeg4.h"
#include "faandct.h"
#include "aandcttab.h"
#include "flv.h"
#include "mpeg4video.h"
#include "internal.h"
#include <limits.h>
//#undef NDEBUG
//#include <assert.h>
static int encode_picture(MpegEncContext *s, int picture_number);
static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
static int sse_mb(MpegEncContext *s);
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
/* enable all paranoid tests for rounding, overflows, etc... */
//#define PARANOID
//#define DEBUG
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
static uint8_t default_fcode_tab[MAX_MV*2+1];
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
{
int qscale;
int shift=0;
for(qscale=qmin; qscale<=qmax; qscale++){
int i;
if (dsp->fdct == ff_jpeg_fdct_islow
#ifdef FAAN_POSTSCALE
|| dsp->fdct == ff_faandct
#endif
) {
for(i=0;i<64;i++) {
const int j= dsp->idct_permutation[i];
/* 16 <= qscale * quant_matrix[i] <= 7905 */
/* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
/* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
(qscale * quant_matrix[j]));
}
} else if (dsp->fdct == fdct_ifast
#ifndef FAAN_POSTSCALE
|| dsp->fdct == ff_faandct
#endif
) {
for(i=0;i<64;i++) {
const int j= dsp->idct_permutation[i];
/* 16 <= qscale * quant_matrix[i] <= 7905 */
/* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
/* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
/* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
(ff_aanscales[i] * qscale * quant_matrix[j]));
}
} else {
for(i=0;i<64;i++) {
const int j= dsp->idct_permutation[i];
/* We can safely suppose that 16 <= quant_matrix[i] <= 255
So 16 <= qscale * quant_matrix[i] <= 7905
so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
*/
qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
}
}
for(i=intra; i<64; i++){
int64_t max= 8191;
if (dsp->fdct == fdct_ifast
#ifndef FAAN_POSTSCALE
|| dsp->fdct == ff_faandct
#endif
) {
max = (8191LL*ff_aanscales[i]) >> 14;
}
while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
shift++;
}
}
}
if(shift){
av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
}
}
static inline void update_qscale(MpegEncContext *s){
s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
}
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
int i;
if(matrix){
put_bits(pb, 1, 1);
for(i=0;i<64;i++) {
put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
}
}else
put_bits(pb, 1, 0);
}
/**
* init s->current_picture.qscale_table from s->lambda_table
*/
void ff_init_qscale_tab(MpegEncContext *s){
int8_t * const qscale_table= s->current_picture.qscale_table;
int i;
for(i=0; i<s->mb_num; i++){
unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
}
}
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
int i;
dst->pict_type = src->pict_type;
dst->quality = src->quality;
dst->coded_picture_number = src->coded_picture_number;
dst->display_picture_number = src->display_picture_number;
// dst->reference = src->reference;
dst->pts = src->pts;
dst->interlaced_frame = src->interlaced_frame;
dst->top_field_first = src->top_field_first;
if(s->avctx->me_threshold){
if(!src->motion_val[0])
av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
if(!src->mb_type)
av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
if(!src->ref_index[0])
av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
if(src->motion_subsample_log2 != dst->motion_subsample_log2)
av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
src->motion_subsample_log2, dst->motion_subsample_log2);
memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
for(i=0; i<2; i++){
int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
int height= ((16*s->mb_height)>>src->motion_subsample_log2);
if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
}
if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
}
}
}
}
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
#define COPY(a) dst->a= src->a
COPY(pict_type);
COPY(current_picture);
COPY(f_code);
COPY(b_code);
COPY(qscale);
COPY(lambda);
COPY(lambda2);
COPY(picture_in_gop_number);
COPY(gop_picture_number);
COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
COPY(progressive_frame); //FIXME don't set in encode_header
COPY(partitioned_frame); //FIXME don't set in encode_header
#undef COPY
}
/**
* sets the given MpegEncContext to defaults for encoding.
* the changed fields will not depend upon the prior state of the MpegEncContext.
*/
static void MPV_encode_defaults(MpegEncContext *s){
int i;
MPV_common_defaults(s);
for(i=-16; i<16; i++){
default_fcode_tab[i + MAX_MV]= 1;
}
s->me.mv_penalty= default_mv_penalty;
s->fcode_tab= default_fcode_tab;
}
/* init video encoder */
av_cold int MPV_encode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
int i;
int chroma_h_shift, chroma_v_shift;
MPV_encode_defaults(s);
switch (avctx->codec_id) {
case CODEC_ID_MPEG2VIDEO:
if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
return -1;
}
break;
case CODEC_ID_LJPEG:
if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA &&
((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
return -1;
}
break;
case CODEC_ID_MJPEG:
if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
return -1;
}
break;
default:
if(avctx->pix_fmt != PIX_FMT_YUV420P){
av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
return -1;
}
}
switch (avctx->pix_fmt) {
case PIX_FMT_YUVJ422P:
case PIX_FMT_YUV422P:
s->chroma_format = CHROMA_422;
break;
case PIX_FMT_YUVJ420P:
case PIX_FMT_YUV420P:
default:
s->chroma_format = CHROMA_420;
break;
}
s->bit_rate = avctx->bit_rate;
s->width = avctx->width;
s->height = avctx->height;
if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
avctx->gop_size=600;
}
s->gop_size = avctx->gop_size;
s->avctx = avctx;
s->flags= avctx->flags;
s->flags2= avctx->flags2;
s->max_b_frames= avctx->max_b_frames;
s->codec_id= avctx->codec->id;
s->luma_elim_threshold = avctx->luma_elim_threshold;
s->chroma_elim_threshold= avctx->chroma_elim_threshold;
s->strict_std_compliance= avctx->strict_std_compliance;
s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
s->mpeg_quant= avctx->mpeg_quant;
s->rtp_mode= !!avctx->rtp_payload_size;
s->intra_dc_precision= avctx->intra_dc_precision;
s->user_specified_pts = AV_NOPTS_VALUE;
if (s->gop_size <= 1) {
s->intra_only = 1;
s->gop_size = 12;
} else {
s->intra_only = 0;
}
s->me_method = avctx->me_method;
/* Fixed QSCALE */
s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
s->adaptive_quant= ( s->avctx->lumi_masking
|| s->avctx->dark_masking
|| s->avctx->temporal_cplx_masking
|| s->avctx->spatial_cplx_masking
|| s->avctx->p_masking
|| s->avctx->border_masking
|| (s->flags&CODEC_FLAG_QP_RD))
&& !s->fixed_qscale;
s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
if(avctx->rc_max_rate && !avctx->rc_buffer_size){
av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
return -1;
}
if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
}
if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
return -1;
}
if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
return -1;
}
if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
}
if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
return -1;
}
if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
return -1;
}
if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
&& (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
&& 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
}
if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
&& s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
return -1;
}
if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
return -1;
}
if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
return -1;
}
if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
return -1;
}
if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
return -1;
}
if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
return -1;
}
if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
s->codec_id == CODEC_ID_H263P) &&
(avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
return -1;
}
if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
&& s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
return -1;
}
if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
return -1;
}
if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
return -1;
}
if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
return -1;
}
if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
return -1;
}
if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
return -1;
}
if(s->flags & CODEC_FLAG_LOW_DELAY){
if (s->codec_id != CODEC_ID_MPEG2VIDEO){
av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
return -1;
}
if (s->max_b_frames != 0){
av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
return -1;
}
}
if(s->q_scale_type == 1){
if(s->codec_id != CODEC_ID_MPEG2VIDEO){
av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
return -1;
}
if(avctx->qmax > 12){
av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
return -1;
}
}
if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
&& s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
&& (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
return -1;
}
if(s->avctx->thread_count < 1){
av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
return -1;
}
if(s->avctx->thread_count > 1)
s->rtp_mode= 1;
if(!avctx->time_base.den || !avctx->time_base.num){
av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
return -1;
}
i= (INT_MAX/2+128)>>8;
if(avctx->me_threshold >= i){
av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
return -1;
}
if(avctx->mb_threshold >= i){
av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
return -1;
}
if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
avctx->b_frame_strategy = 0;
}
i= av_gcd(avctx->time_base.den, avctx->time_base.num);
if(i > 1){
av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
avctx->time_base.den /= i;
avctx->time_base.num /= i;
// return -1;
}
if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
s->inter_quant_bias= 0;
}else{
s->intra_quant_bias=0;
s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
}
if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
s->intra_quant_bias= avctx->intra_quant_bias;
if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
s->inter_quant_bias= avctx->inter_quant_bias;
avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
"the maximum admitted value for the timebase denominator is %d\n",
s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
return -1;
}
s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
switch(avctx->codec->id) {
case CODEC_ID_MPEG1VIDEO:
s->out_format = FMT_MPEG1;
s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
break;
case CODEC_ID_MPEG2VIDEO:
s->out_format = FMT_MPEG1;
s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
s->rtp_mode= 1;
break;
case CODEC_ID_LJPEG:
case CODEC_ID_MJPEG:
s->out_format = FMT_MJPEG;
s->intra_only = 1; /* force intra only for jpeg */
if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
}else{
s->mjpeg_vsample[0] = 2;
s->mjpeg_vsample[1] = 2>>chroma_v_shift;
s->mjpeg_vsample[2] = 2>>chroma_v_shift;
s->mjpeg_hsample[0] = 2;
s->mjpeg_hsample[1] = 2>>chroma_h_shift;
s->mjpeg_hsample[2] = 2>>chroma_h_shift;
}
if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
|| ff_mjpeg_encode_init(s) < 0)
return -1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_H261:
if (!CONFIG_H261_ENCODER) return -1;
if (ff_h261_get_picture_format(s->width, s->height) < 0) {
av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height);
return -1;
}
s->out_format = FMT_H261;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_H263:
if (!CONFIG_H263_ENCODER) return -1;
if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height);
return -1;
}
s->out_format = FMT_H263;
s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_H263P:
s->out_format = FMT_H263;
s->h263_plus = 1;
/* Fx */
s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
s->modified_quant= s->h263_aic;
s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
/* /Fx */
/* These are just to be sure */
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_FLV1:
s->out_format = FMT_H263;
s->h263_flv = 2; /* format = 1; 11-bit codes */
s->unrestricted_mv = 1;
s->rtp_mode=0; /* don't allow GOB */
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_RV10:
s->out_format = FMT_H263;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_RV20:
s->out_format = FMT_H263;
avctx->delay=0;
s->low_delay=1;
s->modified_quant=1;
s->h263_aic=1;
s->h263_plus=1;
s->loop_filter=1;
s->unrestricted_mv= 0;
break;
case CODEC_ID_MPEG4:
s->out_format = FMT_H263;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->low_delay= s->max_b_frames ? 0 : 1;
avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
break;
case CODEC_ID_MSMPEG4V1:
s->out_format = FMT_H263;
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version= 1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_MSMPEG4V2:
s->out_format = FMT_H263;
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version= 2;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_MSMPEG4V3:
s->out_format = FMT_H263;
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version= 3;
s->flipflop_rounding=1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_WMV1:
s->out_format = FMT_H263;
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version= 4;
s->flipflop_rounding=1;
avctx->delay=0;
s->low_delay=1;
break;
case CODEC_ID_WMV2:
s->out_format = FMT_H263;
s->h263_msmpeg4 = 1;
s->h263_pred = 1;
s->unrestricted_mv = 1;
s->msmpeg4_version= 5;
s->flipflop_rounding=1;
avctx->delay=0;
s->low_delay=1;
break;
default:
return -1;
}
avctx->has_b_frames= !s->low_delay;
s->encoding = 1;
s->progressive_frame=
s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
/* init */
if (MPV_common_init(s) < 0)
return -1;
if(!s->dct_quantize)
s->dct_quantize = dct_quantize_c;
if(!s->denoise_dct)
s->denoise_dct = denoise_dct_c;
s->fast_dct_quantize = s->dct_quantize;
if(avctx->trellis)
s->dct_quantize = dct_quantize_trellis_c;
if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
s->chroma_qscale_table= ff_h263_chroma_qscale_table;
s->quant_precision=5;
ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
ff_h261_encode_init(s);
if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
h263_encode_init(s);
if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
ff_msmpeg4_encode_init(s);
if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
&& s->out_format == FMT_MPEG1)
ff_mpeg1_encode_init(s);
/* init q matrix */
for(i=0;i<64;i++) {
int j= s->dsp.idct_permutation[i];
if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
}else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
s->intra_matrix[j] =
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
}else
{ /* mpeg1/2 */
s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
}
if(s->avctx->intra_matrix)
s->intra_matrix[j] = s->avctx->intra_matrix[i];
if(s->avctx->inter_matrix)
s->inter_matrix[j] = s->avctx->inter_matrix[i];
}
/* precompute matrix */
/* for mjpeg, we do include qscale in the matrix */
if (s->out_format != FMT_MJPEG) {
ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
}
if(ff_rate_control_init(s) < 0)
return -1;
return 0;
}
av_cold int MPV_encode_end(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
ff_rate_control_uninit(s);
MPV_common_end(s);
if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
ff_mjpeg_encode_close(s);
av_freep(&avctx->extradata);
return 0;
}
static int get_sae(uint8_t *src, int ref, int stride){
int x,y;
int acc=0;
for(y=0; y<16; y++){
for(x=0; x<16; x++){
acc+= FFABS(src[x+y*stride] - ref);
}
}
return acc;
}
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
int x, y, w, h;
int acc=0;
w= s->width &~15;
h= s->height&~15;
for(y=0; y<h; y+=16){
for(x=0; x<w; x+=16){
int offset= x + y*stride;
int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
int sae = get_sae(src + offset, mean, stride);
acc+= sae + 500 < sad;
}
}
return acc;
}
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
AVFrame *pic=NULL;
int64_t pts;
int i;
const int encoding_delay= s->max_b_frames;
int direct=1;
if(pic_arg){
pts= pic_arg->pts;
pic_arg->display_picture_number= s->input_picture_number++;
if(pts != AV_NOPTS_VALUE){
if(s->user_specified_pts != AV_NOPTS_VALUE){
int64_t time= pts;
int64_t last= s->user_specified_pts;
if(time <= last){
av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
return -1;
}
}
s->user_specified_pts= pts;
}else{
if(s->user_specified_pts != AV_NOPTS_VALUE){
s->user_specified_pts=
pts= s->user_specified_pts + 1;
av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
}else{
pts= pic_arg->display_picture_number;
}
}
}
if(pic_arg){
if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
if(pic_arg->linesize[0] != s->linesize) direct=0;
if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
if(direct){
i= ff_find_unused_picture(s, 1);
pic= (AVFrame*)&s->picture[i];
pic->reference= 3;
for(i=0; i<4; i++){
pic->data[i]= pic_arg->data[i];
pic->linesize[i]= pic_arg->linesize[i];
}
if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
return -1;
}
}else{
i= ff_find_unused_picture(s, 0);
pic= (AVFrame*)&s->picture[i];
pic->reference= 3;
if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
return -1;
}
if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
&& pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
&& pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
// empty
}else{
int h_chroma_shift, v_chroma_shift;
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
for(i=0; i<3; i++){
int src_stride= pic_arg->linesize[i];
int dst_stride= i ? s->uvlinesize : s->linesize;
int h_shift= i ? h_chroma_shift : 0;
int v_shift= i ? v_chroma_shift : 0;
int w= s->width >>h_shift;
int h= s->height>>v_shift;
uint8_t *src= pic_arg->data[i];
uint8_t *dst= pic->data[i];
if(!s->avctx->rc_buffer_size)
dst +=INPLACE_OFFSET;
if(src_stride==dst_stride)
memcpy(dst, src, src_stride*h);
else{
while(h--){
memcpy(dst, src, w);
dst += dst_stride;
src += src_stride;
}
}
}
}
}
copy_picture_attributes(s, pic, pic_arg);
pic->pts= pts; //we set this here to avoid modifiying pic_arg
}
/* shift buffer entries */
for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
s->input_picture[i-1]= s->input_picture[i];
s->input_picture[encoding_delay]= (Picture*)pic;
return 0;
}
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
int x, y, plane;
int score=0;
int64_t score64=0;
for(plane=0; plane<3; plane++){
const int stride= p->linesize[plane];
const int bw= plane ? 1 : 2;
for(y=0; y<s->mb_height*bw; y++){
for(x=0; x<s->mb_width*bw; x++){
int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8);
switch(s->avctx->frame_skip_exp){
case 0: score= FFMAX(score, v); break;
case 1: score+= FFABS(v);break;
case 2: score+= v*v;break;
case 3: score64+= FFABS(v*v*(int64_t)v);break;
case 4: score64+= v*v*(int64_t)(v*v);break;
}
}
}
}
if(score) score64= score;
if(score64 < s->avctx->frame_skip_threshold)
return 1;
if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
return 1;
return 0;
}
static int estimate_best_b_count(MpegEncContext *s){
AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
AVCodecContext *c= avcodec_alloc_context();
AVFrame input[FF_MAX_B_FRAMES+2];
const int scale= s->avctx->brd_scale;
int i, j, out_size, p_lambda, b_lambda, lambda2;
int outbuf_size= s->width * s->height; //FIXME
uint8_t *outbuf= av_malloc(outbuf_size);
int64_t best_rd= INT64_MAX;
int best_b_count= -1;
assert(scale>=0 && scale <=3);
// emms_c();
p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
c->width = s->width >> scale;
c->height= s->height>> scale;
c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
c->mb_decision= s->avctx->mb_decision;
c->me_cmp= s->avctx->me_cmp;
c->mb_cmp= s->avctx->mb_cmp;
c->me_sub_cmp= s->avctx->me_sub_cmp;
c->pix_fmt = PIX_FMT_YUV420P;
c->time_base= s->avctx->time_base;
c->max_b_frames= s->max_b_frames;
if (avcodec_open(c, codec) < 0)
return -1;
for(i=0; i<s->max_b_frames+2; i++){
int ysize= c->width*c->height;
int csize= (c->width/2)*(c->height/2);
Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
avcodec_get_frame_defaults(&input[i]);
input[i].data[0]= av_malloc(ysize + 2*csize);
input[i].data[1]= input[i].data[0] + ysize;
input[i].data[2]= input[i].data[1] + csize;
input[i].linesize[0]= c->width;
input[i].linesize[1]=
input[i].linesize[2]= c->width/2;
if(pre_input_ptr && (!i || s->input_picture[i-1])) {
pre_input= *pre_input_ptr;
if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
pre_input.data[0]+=INPLACE_OFFSET;
pre_input.data[1]+=INPLACE_OFFSET;
pre_input.data[2]+=INPLACE_OFFSET;
}
s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1);
s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1);
}
}
for(j=0; j<s->max_b_frames+1; j++){
int64_t rd=0;
if(!s->input_picture[j])
break;
c->error[0]= c->error[1]= c->error[2]= 0;
input[0].pict_type= FF_I_TYPE;
input[0].quality= 1 * FF_QP2LAMBDA;
out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
for(i=0; i<s->max_b_frames+1; i++){
int is_p= i % (j+1) == j || i==s->max_b_frames;
input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
input[i+1].quality= is_p ? p_lambda : b_lambda;
out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
/* get the delayed frames */
while(out_size){
out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
}
rd += c->error[0] + c->error[1] + c->error[2];
if(rd < best_rd){
best_rd= rd;
best_b_count= j;
}
}
av_freep(&outbuf);
avcodec_close(c);
av_freep(&c);
for(i=0; i<s->max_b_frames+2; i++){
av_freep(&input[i].data[0]);
}
return best_b_count;
}
static int select_input_picture(MpegEncContext *s){
int i;
for(i=1; i<MAX_PICTURE_COUNT; i++)
s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
/* set next picture type & ordering */
if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
s->reordered_input_picture[0]= s->input_picture[0];
s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
}else{
int b_frames;
if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
//FIXME check that te gop check above is +-1 correct
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
for(i=0; i<4; i++)
s->input_picture[0]->data[i]= NULL;
s->input_picture[0]->type= 0;
}else{
assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
|| s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
}
emms_c();
ff_vbv_update(s, 0);
goto no_output_pic;
}
}
if(s->flags&CODEC_FLAG_PASS2){
for(i=0; i<s->max_b_frames+1; i++){
int pict_num= s->input_picture[0]->display_picture_number + i;
if(pict_num >= s->rc_context.num_entries)
break;
if(!s->input_picture[i]){
s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
break;
}
s->input_picture[i]->pict_type=
s->rc_context.entry[pict_num].new_pict_type;
}
}
if(s->avctx->b_frame_strategy==0){
b_frames= s->max_b_frames;
while(b_frames && !s->input_picture[b_frames]) b_frames--;
}else if(s->avctx->b_frame_strategy==1){
for(i=1; i<s->max_b_frames+1; i++){
if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
s->input_picture[i]->b_frame_score=
get_intra_count(s, s->input_picture[i ]->data[0],
s->input_picture[i-1]->data[0], s->linesize) + 1;
}
}
for(i=0; i<s->max_b_frames+1; i++){
if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
}
b_frames= FFMAX(0, i-1);
/* reset scores */
for(i=0; i<b_frames+1; i++){
s->input_picture[i]->b_frame_score=0;
}
}else if(s->avctx->b_frame_strategy==2){
b_frames= estimate_best_b_count(s);
}else{
av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
b_frames=0;
}
emms_c();
//static int b_count=0;
//b_count+= b_frames;
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
for(i= b_frames - 1; i>=0; i--){
int type= s->input_picture[i]->pict_type;
if(type && type != FF_B_TYPE)
b_frames= i;
}
if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
}
if(s->picture_in_gop_number + b_frames >= s->gop_size){
if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
b_frames= s->gop_size - s->picture_in_gop_number - 1;
}else{
if(s->flags & CODEC_FLAG_CLOSED_GOP)
b_frames=0;
s->input_picture[b_frames]->pict_type= FF_I_TYPE;
}
}
if( (s->flags & CODEC_FLAG_CLOSED_GOP)
&& b_frames
&& s->input_picture[b_frames]->pict_type== FF_I_TYPE)
b_frames--;
s->reordered_input_picture[0]= s->input_picture[b_frames];
if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
for(i=0; i<b_frames; i++){
s->reordered_input_picture[i+1]= s->input_picture[i];
s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
}
}
}
no_output_pic:
if(s->reordered_input_picture[0]){
s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
// input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
int i= ff_find_unused_picture(s, 0);
Picture *pic= &s->picture[i];
pic->reference = s->reordered_input_picture[0]->reference;
if(ff_alloc_picture(s, pic, 0) < 0){
return -1;
}
/* mark us unused / free shared pic */
if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
for(i=0; i<4; i++)
s->reordered_input_picture[0]->data[i]= NULL;
s->reordered_input_picture[0]->type= 0;
copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
s->current_picture_ptr= pic;
}else{
// input is not a shared pix -> reuse buffer for current_pix
assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
|| s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
s->current_picture_ptr= s->reordered_input_picture[0];
for(i=0; i<4; i++){
s->new_picture.data[i]+= INPLACE_OFFSET;
}
}
ff_copy_picture(&s->current_picture, s->current_picture_ptr);
s->picture_number= s->new_picture.display_picture_number;
//printf("dpn:%d\n", s->picture_number);
}else{
memset(&s->new_picture, 0, sizeof(Picture));
}
return 0;
}
int MPV_encode_picture(AVCodecContext *avctx,
unsigned char *buf, int buf_size, void *data)
{
MpegEncContext *s = avctx->priv_data;
AVFrame *pic_arg = data;
int i, stuffing_count;
for(i=0; i<avctx->thread_count; i++){
int start_y= s->thread_context[i]->start_mb_y;
int end_y= s->thread_context[i]-> end_mb_y;
int h= s->mb_height;
uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
init_put_bits(&s->thread_context[i]->pb, start, end - start);
}
s->picture_in_gop_number++;
if(load_input_picture(s, pic_arg) < 0)
return -1;
if(select_input_picture(s) < 0){
return -1;
}
/* output? */
if(s->new_picture.data[0]){
s->pict_type= s->new_picture.pict_type;
//emms_c();
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
MPV_frame_start(s, avctx);
vbv_retry:
if (encode_picture(s, s->picture_number) < 0)
return -1;
avctx->header_bits = s->header_bits;
avctx->mv_bits = s->mv_bits;
avctx->misc_bits = s->misc_bits;
avctx->i_tex_bits = s->i_tex_bits;
avctx->p_tex_bits = s->p_tex_bits;
avctx->i_count = s->i_count;
avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
avctx->skip_count = s->skip_count;
MPV_frame_end(s);
if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
ff_mjpeg_encode_picture_trailer(s);
if(avctx->rc_buffer_size){
RateControlContext *rcc= &s->rc_context;
int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
if(s->adaptive_quant){
int i;
for(i=0; i<s->mb_height*s->mb_stride; i++)
s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
}
s->mb_skipped = 0; //done in MPV_frame_start()
if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
s->no_rounding ^= 1;
}
if(s->pict_type!=FF_B_TYPE){
s->time_base= s->last_time_base;
s->last_non_b_time= s->time - s->pp_time;
}
// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
for(i=0; i<avctx->thread_count; i++){
PutBitContext *pb= &s->thread_context[i]->pb;
init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
}
goto vbv_retry;
}
assert(s->avctx->rc_max_rate);
}
if(s->flags&CODEC_FLAG_PASS1)
ff_write_pass1_stats(s);
for(i=0; i<4; i++){
s->current_picture_ptr->error[i]= s->current_picture.error[i];
avctx->error[i] += s->current_picture_ptr->error[i];
}
if(s->flags&CODEC_FLAG_PASS1)
assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
flush_put_bits(&s->pb);
s->frame_bits = put_bits_count(&s->pb);
stuffing_count= ff_vbv_update(s, s->frame_bits);
if(stuffing_count){
if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
return -1;
}
switch(s->codec_id){
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
while(stuffing_count--){
put_bits(&s->pb, 8, 0);
}
break;
case CODEC_ID_MPEG4:
put_bits(&s->pb, 16, 0);
put_bits(&s->pb, 16, 0x1C3);
stuffing_count -= 4;
while(stuffing_count--){
put_bits(&s->pb, 8, 0xFF);
}
break;
default:
av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
}
flush_put_bits(&s->pb);
s->frame_bits = put_bits_count(&s->pb);
}
/* update mpeg1/2 vbv_delay for CBR */
if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
&& 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
int vbv_delay, min_delay;
double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
double bits = s->rc_context.buffer_index + minbits - inbits;
if(bits<0)
av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
assert(s->repeat_first_field==0);
vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
vbv_delay= FFMAX(vbv_delay, min_delay);
assert(vbv_delay < 0xFFFF);
s->vbv_delay_ptr[0] &= 0xF8;
s->vbv_delay_ptr[0] |= vbv_delay>>13;
s->vbv_delay_ptr[1] = vbv_delay>>5;
s->vbv_delay_ptr[2] &= 0x07;
s->vbv_delay_ptr[2] |= vbv_delay<<3;
avctx->vbv_delay = vbv_delay*300;
}
s->total_bits += s->frame_bits;
avctx->frame_bits = s->frame_bits;
}else{
assert((put_bits_ptr(&s->pb) == s->pb.buf));
s->frame_bits=0;
}
assert((s->frame_bits&7)==0);
return s->frame_bits/8;
}
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
{
static const char tab[64]=
{3,2,2,1,1,1,1,1,
1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0};
int score=0;
int run=0;
int i;
DCTELEM *block= s->block[n];
const int last_index= s->block_last_index[n];
int skip_dc;
if(threshold<0){
skip_dc=0;
threshold= -threshold;
}else
skip_dc=1;
/* Are all we could set to zero already zero? */
if(last_index<=skip_dc - 1) return;
for(i=0; i<=last_index; i++){
const int j = s->intra_scantable.permutated[i];
const int level = FFABS(block[j]);
if(level==1){
if(skip_dc && i==0) continue;
score+= tab[run];
run=0;
}else if(level>1){
return;
}else{
run++;
}
}
if(score >= threshold) return;
for(i=skip_dc; i<=last_index; i++){
const int j = s->intra_scantable.permutated[i];
block[j]=0;
}
if(block[0]) s->block_last_index[n]= 0;
else s->block_last_index[n]= -1;
}
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
{
int i;
const int maxlevel= s->max_qcoeff;
const int minlevel= s->min_qcoeff;
int overflow=0;
if(s->mb_intra){
i=1; //skip clipping of intra dc
}else
i=0;
for(;i<=last_index; i++){
const int j= s->intra_scantable.permutated[i];
int level = block[j];
if (level>maxlevel){
level=maxlevel;
overflow++;
}else if(level<minlevel){
level=minlevel;
overflow++;
}
block[j]= level;
}
if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
}
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
int x, y;
//FIXME optimize
for(y=0; y<8; y++){
for(x=0; x<8; x++){
int x2, y2;
int sum=0;
int sqr=0;
int count=0;
for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
int v= ptr[x2 + y2*stride];
sum += v;
sqr += v*v;
count++;
}
}
weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
}
}
}
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
{
int16_t weight[8][64];
DCTELEM orig[8][64];
const int mb_x= s->mb_x;
const int mb_y= s->mb_y;
int i;
int skip_dct[8];
int dct_offset = s->linesize*8; //default for progressive frames
uint8_t *ptr_y, *ptr_cb, *ptr_cr;
int wrap_y, wrap_c;
for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
if(s->adaptive_quant){
const int last_qp= s->qscale;
const int mb_xy= mb_x + mb_y*s->mb_stride;
s->lambda= s->lambda_table[mb_xy];
update_qscale(s);
if(!(s->flags&CODEC_FLAG_QP_RD)){
s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
s->dquant= s->qscale - last_qp;
if(s->out_format==FMT_H263){
s->dquant= av_clip(s->dquant, -2, 2);
if(s->codec_id==CODEC_ID_MPEG4){
if(!s->mb_intra){
if(s->pict_type == FF_B_TYPE){
if(s->dquant&1 || s->mv_dir&MV_DIRECT)
s->dquant= 0;
}
if(s->mv_type==MV_TYPE_8X8)
s->dquant=0;
}
}
}
}
ff_set_qscale(s, last_qp + s->dquant);
}else if(s->flags&CODEC_FLAG_QP_RD)
ff_set_qscale(s, s->qscale + s->dquant);
wrap_y = s->linesize;
wrap_c = s->uvlinesize;
ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
uint8_t *ebuf= s->edge_emu_buffer + 32;
s->dsp.emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
ptr_y= ebuf;
s->dsp.emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
ptr_cb= ebuf+18*wrap_y;
s->dsp.emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
ptr_cr= ebuf+18*wrap_y+8;
}
if (s->mb_intra) {
if(s->flags&CODEC_FLAG_INTERLACED_DCT){
int progressive_score, interlaced_score;
s->interlaced_dct=0;
progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
+s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
if(progressive_score > 0){
interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
+s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
if(progressive_score > interlaced_score){
s->interlaced_dct=1;
dct_offset= wrap_y;
wrap_y<<=1;
if (s->chroma_format == CHROMA_422)
wrap_c<<=1;
}
}
}
s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
if(s->flags&CODEC_FLAG_GRAY){
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
if(!s->chroma_y_shift){ /* 422 */
s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
}
}
}else{
op_pixels_func (*op_pix)[4];
qpel_mc_func (*op_qpix)[16];
uint8_t *dest_y, *dest_cb, *dest_cr;
dest_y = s->dest[0];
dest_cb = s->dest[1];
dest_cr = s->dest[2];
if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
op_pix = s->dsp.put_pixels_tab;
op_qpix= s->dsp.put_qpel_pixels_tab;
}else{
op_pix = s->dsp.put_no_rnd_pixels_tab;
op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_FORWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
op_pix = s->dsp.avg_pixels_tab;
op_qpix= s->dsp.avg_qpel_pixels_tab;
}
if (s->mv_dir & MV_DIR_BACKWARD) {
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
}
if(s->flags&CODEC_FLAG_INTERLACED_DCT){
int progressive_score, interlaced_score;
s->interlaced_dct=0;
progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
+s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
if(progressive_score>0){
interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
+s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
if(progressive_score > interlaced_score){
s->interlaced_dct=1;
dct_offset= wrap_y;
wrap_y<<=1;
if (s->chroma_format == CHROMA_422)
wrap_c<<=1;
}
}
}
s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
if(s->flags&CODEC_FLAG_GRAY){
skip_dct[4]= 1;
skip_dct[5]= 1;
}else{
s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
if(!s->chroma_y_shift){ /* 422 */
s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
}
}
/* pre quantization */
if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
//FIXME optimize
if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
if(!s->chroma_y_shift){ /* 422 */
if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
}
}
}
if(s->avctx->quantizer_noise_shaping){
if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
if(!s->chroma_y_shift){ /* 422 */
if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
}
memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
}
/* DCT & quantize */
assert(s->out_format!=FMT_MJPEG || s->qscale==8);
{
for(i=0;i<mb_block_count;i++) {
if(!skip_dct[i]){
int overflow;
s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
// FIXME we could decide to change to quantizer instead of clipping
// JS: I don't think that would be a good idea it could lower quality instead
// of improve it. Just INTRADC clipping deserves changes in quantizer
if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
}else
s->block_last_index[i]= -1;
}
if(s->avctx->quantizer_noise_shaping){
for(i=0;i<mb_block_count;i++) {
if(!skip_dct[i]){
s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
}
}
}
if(s->luma_elim_threshold && !s->mb_intra)
for(i=0; i<4; i++)
dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
if(s->chroma_elim_threshold && !s->mb_intra)
for(i=4; i<mb_block_count; i++)
dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
if(s->flags & CODEC_FLAG_CBP_RD){
for(i=0;i<mb_block_count;i++) {
if(s->block_last_index[i] == -1)
s->coded_score[i]= INT_MAX/256;
}
}
}
if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
s->block_last_index[4]=
s->block_last_index[5]= 0;
s->block[4][0]=
s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
}
//non c quantize code returns incorrect block_last_index FIXME
if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
for(i=0; i<mb_block_count; i++){
int j;
if(s->block_last_index[i]>0){
for(j=63; j>0; j--){
if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
}
s->block_last_index[i]= j;
}
}
}
/* huffman encode */
switch(s->codec_id){ //FIXME funct ptr could be slightly faster
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
mpeg1_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MPEG4:
if (CONFIG_MPEG4_ENCODER)
mpeg4_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MSMPEG4V2:
case CODEC_ID_MSMPEG4V3:
case CODEC_ID_WMV1:
if (CONFIG_MSMPEG4_ENCODER)
msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_WMV2:
if (CONFIG_WMV2_ENCODER)
ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_H261:
if (CONFIG_H261_ENCODER)
ff_h261_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
case CODEC_ID_RV10:
case CODEC_ID_RV20:
if (CONFIG_H263_ENCODER)
h263_encode_mb(s, s->block, motion_x, motion_y);
break;
case CODEC_ID_MJPEG:
if (CONFIG_MJPEG_ENCODER)
ff_mjpeg_encode_mb(s, s->block);
break;
default:
assert(0);
}
}
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
{
if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
else encode_mb_internal(s, motion_x, motion_y, 16, 8);
}
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
int i;
memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
/* mpeg1 */
d->mb_skip_run= s->mb_skip_run;
for(i=0; i<3; i++)
d->last_dc[i]= s->last_dc[i];
/* statistics */
d->mv_bits= s->mv_bits;
d->i_tex_bits= s->i_tex_bits;
d->p_tex_bits= s->p_tex_bits;
d->i_count= s->i_count;
d->f_count= s->f_count;
d->b_count= s->b_count;
d->skip_count= s->skip_count;
d->misc_bits= s->misc_bits;
d->last_bits= 0;
d->mb_skipped= 0;
d->qscale= s->qscale;
d->dquant= s->dquant;
d->esc3_level_length= s->esc3_level_length;
}
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
int i;
memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
/* mpeg1 */
d->mb_skip_run= s->mb_skip_run;
for(i=0; i<3; i++)
d->last_dc[i]= s->last_dc[i];
/* statistics */
d->mv_bits= s->mv_bits;
d->i_tex_bits= s->i_tex_bits;
d->p_tex_bits= s->p_tex_bits;
d->i_count= s->i_count;
d->f_count= s->f_count;
d->b_count= s->b_count;
d->skip_count= s->skip_count;
d->misc_bits= s->misc_bits;
d->mb_intra= s->mb_intra;
d->mb_skipped= s->mb_skipped;
d->mv_type= s->mv_type;
d->mv_dir= s->mv_dir;
d->pb= s->pb;
if(s->data_partitioning){
d->pb2= s->pb2;
d->tex_pb= s->tex_pb;
}
d->block= s->block;
for(i=0; i<8; i++)
d->block_last_index[i]= s->block_last_index[i];
d->interlaced_dct= s->interlaced_dct;
d->qscale= s->qscale;
d->esc3_level_length= s->esc3_level_length;
}
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
int *dmin, int *next_block, int motion_x, int motion_y)
{
int score;
uint8_t *dest_backup[3];
copy_context_before_encode(s, backup, type);
s->block= s->blocks[*next_block];
s->pb= pb[*next_block];
if(s->data_partitioning){
s->pb2 = pb2 [*next_block];
s->tex_pb= tex_pb[*next_block];
}
if(*next_block){
memcpy(dest_backup, s->dest, sizeof(s->dest));
s->dest[0] = s->rd_scratchpad;
s->dest[1] = s->rd_scratchpad + 16*s->linesize;
s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
assert(s->linesize >= 32); //FIXME
}
encode_mb(s, motion_x, motion_y);
score= put_bits_count(&s->pb);
if(s->data_partitioning){
score+= put_bits_count(&s->pb2);
score+= put_bits_count(&s->tex_pb);
}
if(s->avctx->mb_decision == FF_MB_DECISION_RD){
MPV_decode_mb(s, s->block);
score *= s->lambda2;
score += sse_mb(s) << FF_LAMBDA_SHIFT;
}
if(*next_block){
memcpy(s->dest, dest_backup, sizeof(s->dest));
}
if(score<*dmin){
*dmin= score;
*next_block^=1;
copy_context_after_encode(best, s, type);
}
}
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
uint32_t *sq = ff_squareTbl + 256;
int acc=0;
int x,y;
if(w==16 && h==16)
return s->dsp.sse[0](NULL, src1, src2, stride, 16);
else if(w==8 && h==8)
return s->dsp.sse[1](NULL, src1, src2, stride, 8);
for(y=0; y<h; y++){
for(x=0; x<w; x++){
acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
}
}
assert(acc>=0);
return acc;
}
static int sse_mb(MpegEncContext *s){
int w= 16;
int h= 16;
if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
if(w==16 && h==16)
if(s->avctx->mb_cmp == FF_CMP_NSSE){
return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
+s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
+s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
}else{
return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
+s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
+s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
}
else
return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
+sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
+sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
}
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= *(void**)arg;
s->me.pre_pass=1;
s->me.dia_size= s->avctx->pre_dia_size;
s->first_slice_line=1;
for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
}
s->first_slice_line=0;
}
s->me.pre_pass=0;
return 0;
}
static int estimate_motion_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= *(void**)arg;
ff_check_alignment();
s->me.dia_size= s->avctx->dia_size;
s->first_slice_line=1;
for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
s->mb_x=0; //for block init below
ff_init_block_index(s);
for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
s->block_index[0]+=2;
s->block_index[1]+=2;
s->block_index[2]+=2;
s->block_index[3]+=2;
/* compute motion vector & mb_type and store in context */
if(s->pict_type==FF_B_TYPE)
ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
else
ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
}
s->first_slice_line=0;
}
return 0;
}
static int mb_var_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= *(void**)arg;
int mb_x, mb_y;
ff_check_alignment();
for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
int xx = mb_x * 16;
int yy = mb_y * 16;
uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
int varc;
int sum = s->dsp.pix_sum(pix, s->linesize);
varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
s->me.mb_var_sum_temp += varc;
}
}
return 0;
}
static void write_slice_end(MpegEncContext *s){
if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
if(s->partitioned_frame){
ff_mpeg4_merge_partitions(s);
}
ff_mpeg4_stuffing(&s->pb);
}else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
ff_mjpeg_encode_stuffing(&s->pb);
}
align_put_bits(&s->pb);
flush_put_bits(&s->pb);
if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
s->misc_bits+= get_bits_diff(s);
}
static int encode_thread(AVCodecContext *c, void *arg){
MpegEncContext *s= *(void**)arg;
int mb_x, mb_y, pdif = 0;
int chr_h= 16>>s->chroma_y_shift;
int i, j;
MpegEncContext best_s, backup_s;
uint8_t bit_buf[2][MAX_MB_BYTES];
uint8_t bit_buf2[2][MAX_MB_BYTES];
uint8_t bit_buf_tex[2][MAX_MB_BYTES];
PutBitContext pb[2], pb2[2], tex_pb[2];
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
ff_check_alignment();
for(i=0; i<2; i++){
init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
}
s->last_bits= put_bits_count(&s->pb);
s->mv_bits=0;
s->misc_bits=0;
s->i_tex_bits=0;
s->p_tex_bits=0;
s->i_count=0;
s->f_count=0;
s->b_count=0;
s->skip_count=0;
for(i=0; i<3; i++){
/* init last dc values */
/* note: quant matrix value (8) is implied here */
s->last_dc[i] = 128 << s->intra_dc_precision;
s->current_picture.error[i] = 0;
}
s->mb_skip_run = 0;
memset(s->last_mv, 0, sizeof(s->last_mv));
s->last_mv_dir = 0;
switch(s->codec_id){
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
if (CONFIG_H263_ENCODER)
s->gob_index = ff_h263_get_gob_height(s);
break;
case CODEC_ID_MPEG4:
if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
ff_mpeg4_init_partitions(s);
break;
}
s->resync_mb_x=0;
s->resync_mb_y=0;
s->first_slice_line = 1;
s->ptr_lastgob = s->pb.buf;
for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
// printf("row %d at %X\n", s->mb_y, (int)s);
s->mb_x=0;
s->mb_y= mb_y;
ff_set_qscale(s, s->qscale);
ff_init_block_index(s);
for(mb_x=0; mb_x < s->mb_width; mb_x++) {
int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
int mb_type= s->mb_type[xy];
// int d;
int dmin= INT_MAX;
int dir;
if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
if(s->data_partitioning){
if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
|| s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
return -1;
}
}
s->mb_x = mb_x;
s->mb_y = mb_y; // moved into loop, can get changed by H.261
ff_update_block_index(s);
if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
ff_h261_reorder_mb_index(s);
xy= s->mb_y*s->mb_stride + s->mb_x;
mb_type= s->mb_type[xy];
}
/* write gob / video packet header */
if(s->rtp_mode){
int current_packet_size, is_gob_start;
current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
switch(s->codec_id){
case CODEC_ID_H263:
case CODEC_ID_H263P:
if(!s->h263_slice_structured)
if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
break;
case CODEC_ID_MPEG2VIDEO:
if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
case CODEC_ID_MPEG1VIDEO:
if(s->mb_skip_run) is_gob_start=0;
break;
}
if(is_gob_start){
if(s->start_mb_y != mb_y || mb_x!=0){
write_slice_end(s);
if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
ff_mpeg4_init_partitions(s);
}
}
assert((put_bits_count(&s->pb)&7) == 0);
current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
int d= 100 / s->avctx->error_rate;
if(r % d == 0){
current_packet_size=0;
#ifndef ALT_BITSTREAM_WRITER
s->pb.buf_ptr= s->ptr_lastgob;
#endif
assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
}
}
if (s->avctx->rtp_callback){
int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
}
switch(s->codec_id){
case CODEC_ID_MPEG4:
if (CONFIG_MPEG4_ENCODER) {
ff_mpeg4_encode_video_packet_header(s);
ff_mpeg4_clean_buffers(s);
}
break;
case CODEC_ID_MPEG1VIDEO:
case CODEC_ID_MPEG2VIDEO:
if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
ff_mpeg1_encode_slice_header(s);
ff_mpeg1_clean_buffers(s);
}
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
if (CONFIG_H263_ENCODER)
h263_encode_gob_header(s, mb_y);
break;
}
if(s->flags&CODEC_FLAG_PASS1){
int bits= put_bits_count(&s->pb);
s->misc_bits+= bits - s->last_bits;
s->last_bits= bits;
}
s->ptr_lastgob += current_packet_size;
s->first_slice_line=1;
s->resync_mb_x=mb_x;
s->resync_mb_y=mb_y;
}
}
if( (s->resync_mb_x == s->mb_x)
&& s->resync_mb_y+1 == s->mb_y){
s->first_slice_line=0;
}
s->mb_skipped=0;
s->dquant=0; //only for QP_RD
if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
int next_block=0;
int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
copy_context_before_encode(&backup_s, s, -1);
backup_s.pb= s->pb;
best_s.data_partitioning= s->data_partitioning;
best_s.partitioned_frame= s->partitioned_frame;
if(s->data_partitioning){
backup_s.pb2= s->pb2;
backup_s.tex_pb= s->tex_pb;
}
if(mb_type&CANDIDATE_MB_TYPE_INTER){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[0][0][0] = s->p_mv_table[xy][0];
s->mv[0][0][1] = s->p_mv_table[xy][1];
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
}
if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[0][i] = s->p_field_select_table[i][xy];
s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
}
if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_8X8;
s->mb_intra= 0;
for(i=0; i<4; i++){
s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
}
if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
s->mv_dir = MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[1][0][0] = s->b_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_back_mv_table[xy][1];
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
}
if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 0;
s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
s->mv_dir = MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(dir=0; dir<2; dir++){
for(i=0; i<2; i++){
j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
}
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(mb_type&CANDIDATE_MB_TYPE_INTRA){
s->mv_dir = 0;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= 1;
s->mv[0][0][0] = 0;
s->mv[0][0][1] = 0;
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
if(s->h263_pred || s->h263_aic){
if(best_s.mb_intra)
s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
else
ff_clean_intra_table_entries(s); //old mode?
}
}
if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
const int last_qp= backup_s.qscale;
int qpi, qp, dc[6];
DCTELEM ac[6][16];
const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
static const int dquant_tab[4]={-1,1,-2,2};
assert(backup_s.dquant == 0);
//FIXME intra
s->mv_dir= best_s.mv_dir;
s->mv_type = MV_TYPE_16X16;
s->mb_intra= best_s.mb_intra;
s->mv[0][0][0] = best_s.mv[0][0][0];
s->mv[0][0][1] = best_s.mv[0][0][1];
s->mv[1][0][0] = best_s.mv[1][0][0];
s->mv[1][0][1] = best_s.mv[1][0][1];
qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
for(; qpi<4; qpi++){
int dquant= dquant_tab[qpi];
qp= last_qp + dquant;
if(qp < s->avctx->qmin || qp > s->avctx->qmax)
continue;
backup_s.dquant= dquant;
if(s->mb_intra && s->dc_val[0]){
for(i=0; i<6; i++){
dc[i]= s->dc_val[0][ s->block_index[i] ];
memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
}
}
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
&dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
if(best_s.qscale != qp){
if(s->mb_intra && s->dc_val[0]){
for(i=0; i<6; i++){
s->dc_val[0][ s->block_index[i] ]= dc[i];
memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
}
}
}
}
}
}
if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
int mx= s->b_direct_mv_table[xy][0];
int my= s->b_direct_mv_table[xy][1];
backup_s.dquant = 0;
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
s->mb_intra= 0;
ff_mpeg4_set_direct_mv(s, mx, my);
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
&dmin, &next_block, mx, my);
}
if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
backup_s.dquant = 0;
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
s->mb_intra= 0;
ff_mpeg4_set_direct_mv(s, 0, 0);
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
&dmin, &next_block, 0, 0);
}
if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
int coded=0;
for(i=0; i<6; i++)
coded |= s->block_last_index[i];
if(coded){
int mx,my;
memcpy(s->mv, best_s.mv, sizeof(s->mv));
if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
mx=my=0; //FIXME find the one we actually used
ff_mpeg4_set_direct_mv(s, mx, my);
}else if(best_s.mv_dir&MV_DIR_BACKWARD){
mx= s->mv[1][0][0];
my= s->mv[1][0][1];
}else{
mx= s->mv[0][0][0];
my= s->mv[0][0][1];
}
s->mv_dir= best_s.mv_dir;
s->mv_type = best_s.mv_type;
s->mb_intra= 0;
/* s->mv[0][0][0] = best_s.mv[0][0][0];
s->mv[0][0][1] = best_s.mv[0][0][1];
s->mv[1][0][0] = best_s.mv[1][0][0];
s->mv[1][0][1] = best_s.mv[1][0][1];*/
backup_s.dquant= 0;
s->skipdct=1;
encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
&dmin, &next_block, mx, my);
s->skipdct=0;
}
}
s->current_picture.qscale_table[xy]= best_s.qscale;
copy_context_after_encode(s, &best_s, -1);
pb_bits_count= put_bits_count(&s->pb);
flush_put_bits(&s->pb);
ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
s->pb= backup_s.pb;
if(s->data_partitioning){
pb2_bits_count= put_bits_count(&s->pb2);
flush_put_bits(&s->pb2);
ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
s->pb2= backup_s.pb2;
tex_pb_bits_count= put_bits_count(&s->tex_pb);
flush_put_bits(&s->tex_pb);
ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
s->tex_pb= backup_s.tex_pb;
}
s->last_bits= put_bits_count(&s->pb);
if (CONFIG_H263_ENCODER &&
s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
ff_h263_update_motion_val(s);
if(next_block==0){ //FIXME 16 vs linesize16
s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
}
if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
MPV_decode_mb(s, s->block);
} else {
int motion_x = 0, motion_y = 0;
s->mv_type=MV_TYPE_16X16;
// only one MB-Type possible
switch(mb_type){
case CANDIDATE_MB_TYPE_INTRA:
s->mv_dir = 0;
s->mb_intra= 1;
motion_x= s->mv[0][0][0] = 0;
motion_y= s->mv[0][0][1] = 0;
break;
case CANDIDATE_MB_TYPE_INTER:
s->mv_dir = MV_DIR_FORWARD;
s->mb_intra= 0;
motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
break;
case CANDIDATE_MB_TYPE_INTER_I:
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[0][i] = s->p_field_select_table[i][xy];
s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
}
break;
case CANDIDATE_MB_TYPE_INTER4V:
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_8X8;
s->mb_intra= 0;
for(i=0; i<4; i++){
s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
}
break;
case CANDIDATE_MB_TYPE_DIRECT:
if (CONFIG_MPEG4_ENCODER) {
s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
s->mb_intra= 0;
motion_x=s->b_direct_mv_table[xy][0];
motion_y=s->b_direct_mv_table[xy][1];
ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
}
break;
case CANDIDATE_MB_TYPE_DIRECT0:
if (CONFIG_MPEG4_ENCODER) {
s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
s->mb_intra= 0;
ff_mpeg4_set_direct_mv(s, 0, 0);
}
break;
case CANDIDATE_MB_TYPE_BIDIR:
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
s->mb_intra= 0;
s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
break;
case CANDIDATE_MB_TYPE_BACKWARD:
s->mv_dir = MV_DIR_BACKWARD;
s->mb_intra= 0;
motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
break;
case CANDIDATE_MB_TYPE_FORWARD:
s->mv_dir = MV_DIR_FORWARD;
s->mb_intra= 0;
motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
// printf(" %d %d ", motion_x, motion_y);
break;
case CANDIDATE_MB_TYPE_FORWARD_I:
s->mv_dir = MV_DIR_FORWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
}
break;
case CANDIDATE_MB_TYPE_BACKWARD_I:
s->mv_dir = MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(i=0; i<2; i++){
j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
}
break;
case CANDIDATE_MB_TYPE_BIDIR_I:
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
s->mv_type = MV_TYPE_FIELD;
s->mb_intra= 0;
for(dir=0; dir<2; dir++){
for(i=0; i<2; i++){
j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
}
}
break;
default:
av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
}
encode_mb(s, motion_x, motion_y);
// RAL: Update last macroblock type
s->last_mv_dir = s->mv_dir;
if (CONFIG_H263_ENCODER &&
s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
ff_h263_update_motion_val(s);
MPV_decode_mb(s, s->block);
}
/* clean the MV table in IPS frames for direct mode in B frames */
if(s->mb_intra /* && I,P,S_TYPE */){
s->p_mv_table[xy][0]=0;
s->p_mv_table[xy][1]=0;
}
if(s->flags&CODEC_FLAG_PSNR){
int w= 16;
int h= 16;
if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
s->current_picture.error[0] += sse(
s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
s->dest[0], w, h, s->linesize);
s->current_picture.error[1] += sse(
s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
s->current_picture.error[2] += sse(
s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
}
if(s->loop_filter){
if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
ff_h263_loop_filter(s);
}
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
}
}
//not beautiful here but we must write it before flushing so it has to be here
if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
msmpeg4_encode_ext_header(s);
write_slice_end(s);
/* Send the last GOB if RTP */
if (s->avctx->rtp_callback) {
int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
/* Call the RTP callback to send the last GOB */
emms_c();
s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
}
return 0;
}
#define MERGE(field) dst->field += src->field; src->field=0
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
MERGE(me.scene_change_score);
MERGE(me.mc_mb_var_sum_temp);
MERGE(me.mb_var_sum_temp);
}
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
int i;
MERGE(dct_count[0]); //note, the other dct vars are not part of the context
MERGE(dct_count[1]);
MERGE(mv_bits);
MERGE(i_tex_bits);
MERGE(p_tex_bits);
MERGE(i_count);
MERGE(f_count);
MERGE(b_count);
MERGE(skip_count);
MERGE(misc_bits);
MERGE(error_count);
MERGE(padding_bug_score);
MERGE(current_picture.error[0]);
MERGE(current_picture.error[1]);
MERGE(current_picture.error[2]);
if(dst->avctx->noise_reduction){
for(i=0; i<64; i++){
MERGE(dct_error_sum[0][i]);
MERGE(dct_error_sum[1][i]);
}
}
assert(put_bits_count(&src->pb) % 8 ==0);
assert(put_bits_count(&dst->pb) % 8 ==0);
ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
flush_put_bits(&dst->pb);
}
static int estimate_qp(MpegEncContext *s, int dry_run){
if (s->next_lambda){
s->current_picture_ptr->quality=
s->current_picture.quality = s->next_lambda;
if(!dry_run) s->next_lambda= 0;
} else if (!s->fixed_qscale) {
s->current_picture_ptr->quality=
s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
if (s->current_picture.quality < 0)
return -1;
}
if(s->adaptive_quant){
switch(s->codec_id){
case CODEC_ID_MPEG4:
if (CONFIG_MPEG4_ENCODER)
ff_clean_mpeg4_qscales(s);
break;
case CODEC_ID_H263:
case CODEC_ID_H263P:
case CODEC_ID_FLV1:
if (CONFIG_H263_ENCODER)
ff_clean_h263_qscales(s);
break;
default:
ff_init_qscale_tab(s);
}
s->lambda= s->lambda_table[0];
//FIXME broken
}else
s->lambda= s->current_picture.quality;
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
update_qscale(s);
return 0;
}
/* must be called before writing the header */
static void set_frame_distances(MpegEncContext * s){
assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
if(s->pict_type==FF_B_TYPE){
s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
assert(s->pb_time > 0 && s->pb_time < s->pp_time);
}else{
s->pp_time= s->time - s->last_non_b_time;
s->last_non_b_time= s->time;
assert(s->picture_number==0 || s->pp_time > 0);
}
}
static int encode_picture(MpegEncContext *s, int picture_number)
{
int i;
int bits;
s->picture_number = picture_number;
/* Reset the average MB variance */
s->me.mb_var_sum_temp =
s->me.mc_mb_var_sum_temp = 0;
/* we need to initialize some time vars before we can encode b-frames */
// RAL: Condition added for MPEG1VIDEO
if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
set_frame_distances(s);
if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
ff_set_mpeg4_time(s);
s->me.scene_change_score=0;
// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
if(s->pict_type==FF_I_TYPE){
if(s->msmpeg4_version >= 3) s->no_rounding=1;
else s->no_rounding=0;
}else if(s->pict_type!=FF_B_TYPE){
if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
s->no_rounding ^= 1;
}
if(s->flags & CODEC_FLAG_PASS2){
if (estimate_qp(s,1) < 0)
return -1;
ff_get_2pass_fcode(s);
}else if(!(s->flags & CODEC_FLAG_QSCALE)){
if(s->pict_type==FF_B_TYPE)
s->lambda= s->last_lambda_for[s->pict_type];
else
s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
update_qscale(s);
}
s->mb_intra=0; //for the rate distortion & bit compare functions
for(i=1; i<s->avctx->thread_count; i++){
ff_update_duplicate_context(s->thread_context[i], s);
}
if(ff_init_me(s)<0)
return -1;
/* Estimate motion for every MB */
if(s->pict_type != FF_I_TYPE){
s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
}
}
s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
}else /* if(s->pict_type == FF_I_TYPE) */{
/* I-Frame */
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
if(!s->fixed_qscale){
/* finding spatial complexity for I-frame rate control */
s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
}
}
for(i=1; i<s->avctx->thread_count; i++){
merge_context_after_me(s, s->thread_context[i]);
}
s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
emms_c();
if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
s->pict_type= FF_I_TYPE;
for(i=0; i<s->mb_stride*s->mb_height; i++)
s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
}
if(!s->umvplus){
if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int a,b;
a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
s->f_code= FFMAX3(s->f_code, a, b);
}
ff_fix_long_p_mvs(s);
ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int j;
for(i=0; i<2; i++){
for(j=0; j<2; j++)
ff_fix_long_mvs(s, s->p_field_select_table[i], j,
s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
}
}
}
if(s->pict_type==FF_B_TYPE){
int a, b;
a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->f_code = FFMAX(a, b);
a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
s->b_code = FFMAX(a, b);
ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
if(s->flags & CODEC_FLAG_INTERLACED_ME){
int dir, j;
for(dir=0; dir<2; dir++){
for(i=0; i<2; i++){
for(j=0; j<2; j++){
int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
: (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
}
}
}
}
}
}
if (estimate_qp(s, 0) < 0)
return -1;
if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
s->qscale= 3; //reduce clipping problems
if (s->out_format == FMT_MJPEG) {
/* for mjpeg, we do include qscale in the matrix */
for(i=1;i<64;i++){
int j= s->dsp.idct_permutation[i];
s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
}
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
s->qscale= 8;
}
//FIXME var duplication
s->current_picture_ptr->key_frame=
s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
s->current_picture_ptr->pict_type=
s->current_picture.pict_type= s->pict_type;
if(s->current_picture.key_frame)
s->picture_in_gop_number=0;
s->last_bits= put_bits_count(&s->pb);
switch(s->out_format) {
case FMT_MJPEG:
if (CONFIG_MJPEG_ENCODER)
ff_mjpeg_encode_picture_header(s);
break;
case FMT_H261:
if (CONFIG_H261_ENCODER)
ff_h261_encode_picture_header(s, picture_number);
break;
case FMT_H263:
if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
ff_wmv2_encode_picture_header(s, picture_number);
else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
msmpeg4_encode_picture_header(s, picture_number);
else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
mpeg4_encode_picture_header(s, picture_number);
else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
rv10_encode_picture_header(s, picture_number);
else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
rv20_encode_picture_header(s, picture_number);
else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
ff_flv_encode_picture_header(s, picture_number);
else if (CONFIG_H263_ENCODER)
h263_encode_picture_header(s, picture_number);
break;
case FMT_MPEG1:
if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
mpeg1_encode_picture_header(s, picture_number);
break;
case FMT_H264:
break;
default:
assert(0);
}
bits= put_bits_count(&s->pb);
s->header_bits= bits - s->last_bits;
for(i=1; i<s->avctx->thread_count; i++){
update_duplicate_context_after_me(s->thread_context[i], s);
}
s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
for(i=1; i<s->avctx->thread_count; i++){
merge_context_after_encode(s, s->thread_context[i]);
}
emms_c();
return 0;
}
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
const int intra= s->mb_intra;
int i;
s->dct_count[intra]++;
for(i=0; i<64; i++){
int level= block[i];
if(level){
if(level>0){
s->dct_error_sum[intra][i] += level;
level -= s->dct_offset[intra][i];
if(level<0) level=0;
}else{
s->dct_error_sum[intra][i] -= level;
level += s->dct_offset[intra][i];
if(level>0) level=0;
}
block[i]= level;
}
}
}
static int dct_quantize_trellis_c(MpegEncContext *s,
DCTELEM *block, int n,
int qscale, int *overflow){
const int *qmat;
const uint8_t *scantable= s->intra_scantable.scantable;
const uint8_t *perm_scantable= s->intra_scantable.permutated;
int max=0;
unsigned int threshold1, threshold2;
int bias=0;
int run_tab[65];
int level_tab[65];
int score_tab[65];
int survivor[65];
int survivor_count;
int last_run=0;
int last_level=0;
int last_score= 0;
int last_i;
int coeff[2][64];
int coeff_count[64];
int qmul, qadd, start_i, last_non_zero, i, dc;
const int esc_length= s->ac_esc_length;
uint8_t * length;
uint8_t * last_length;
const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
s->dsp.fdct (block);
if(s->dct_error_sum)
s->denoise_dct(s, block);
qmul= qscale*16;
qadd= ((qscale-1)|1)*8;
if (s->mb_intra) {
int q;
if (!s->h263_aic) {
if (n < 4)
q = s->y_dc_scale;
else
q = s->c_dc_scale;
q = q << 3;
} else{
/* For AIC we skip quant/dequant of INTRADC */
q = 1 << 3;
qadd=0;
}
/* note: block[0] is assumed to be positive */
block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
last_non_zero = 0;
qmat = s->q_intra_matrix[qscale];
if(s->mpeg_quant || s->out_format == FMT_MPEG1)
bias= 1<<(QMAT_SHIFT-1);
length = s->intra_ac_vlc_length;
last_length= s->intra_ac_vlc_last_length;
} else {
start_i = 0;
last_non_zero = -1;
qmat = s->q_inter_matrix[qscale];
length = s->inter_ac_vlc_length;
last_length= s->inter_ac_vlc_last_length;
}
last_i= start_i;
threshold1= (1<<QMAT_SHIFT) - bias - 1;
threshold2= (threshold1<<1);
for(i=63; i>=start_i; i--) {
const int j = scantable[i];
int level = block[j] * qmat[j];
if(((unsigned)(level+threshold1))>threshold2){
last_non_zero = i;
break;
}
}
for(i=start_i; i<=last_non_zero; i++) {
const int j = scantable[i];
int level = block[j] * qmat[j];
// if( bias+level >= (1<<(QMAT_SHIFT - 3))
// || bias-level >= (1<<(QMAT_SHIFT - 3))){
if(((unsigned)(level+threshold1))>threshold2){
if(level>0){
level= (bias + level)>>QMAT_SHIFT;
coeff[0][i]= level;
coeff[1][i]= level-1;
// coeff[2][k]= level-2;
}else{
level= (bias - level)>>QMAT_SHIFT;
coeff[0][i]= -level;
coeff[1][i]= -level+1;
// coeff[2][k]= -level+2;
}
coeff_count[i]= FFMIN(level, 2);
assert(coeff_count[i]);
max |=level;
}else{
coeff[0][i]= (level>>31)|1;
coeff_count[i]= 1;
}
}
*overflow= s->max_qcoeff < max; //overflow might have happened
if(last_non_zero < start_i){
memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
return last_non_zero;
}
score_tab[start_i]= 0;
survivor[0]= start_i;
survivor_count= 1;
for(i=start_i; i<=last_non_zero; i++){
int level_index, j, zero_distortion;
int dct_coeff= FFABS(block[ scantable[i] ]);
int best_score=256*256*256*120;
if ( s->dsp.fdct == fdct_ifast
#ifndef FAAN_POSTSCALE
|| s->dsp.fdct == ff_faandct
#endif
)
dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
zero_distortion= dct_coeff*dct_coeff;
for(level_index=0; level_index < coeff_count[i]; level_index++){
int distortion;
int level= coeff[level_index][i];
const int alevel= FFABS(level);
int unquant_coeff;
assert(level);
if(s->out_format == FMT_H263){
unquant_coeff= alevel*qmul + qadd;
}else{ //MPEG1
j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
if(s->mb_intra){
unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
unquant_coeff = (unquant_coeff - 1) | 1;
}else{
unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
unquant_coeff = (unquant_coeff - 1) | 1;
}
unquant_coeff<<= 3;
}
distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
level+=64;
if((level&(~127)) == 0){
for(j=survivor_count-1; j>=0; j--){
int run= i - survivor[j];
int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
score += score_tab[i-run];
if(score < best_score){
best_score= score;
run_tab[i+1]= run;
level_tab[i+1]= level-64;
}
}
if(s->out_format == FMT_H263){
for(j=survivor_count-1; j>=0; j--){
int run= i - survivor[j];
int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
score += score_tab[i-run];
if(score < last_score){
last_score= score;
last_run= run;
last_level= level-64;
last_i= i+1;
}
}
}
}else{
distortion += esc_length*lambda;
for(j=survivor_count-1; j>=0; j--){
int run= i - survivor[j];
int score= distortion + score_tab[i-run];
if(score < best_score){
best_score= score;
run_tab[i+1]= run;
level_tab[i+1]= level-64;
}
}
if(s->out_format == FMT_H263){
for(j=survivor_count-1; j>=0; j--){
int run= i - survivor[j];
int score= distortion + score_tab[i-run];
if(score < last_score){
last_score= score;
last_run= run;
last_level= level-64;
last_i= i+1;
}
}
}
}
}
score_tab[i+1]= best_score;
//Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
if(last_non_zero <= 27){
for(; survivor_count; survivor_count--){
if(score_tab[ survivor[survivor_count-1] ] <= best_score)
break;
}
}else{
for(; survivor_count; survivor_count--){
if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
break;
}
}
survivor[ survivor_count++ ]= i+1;
}
if(s->out_format != FMT_H263){
last_score= 256*256*256*120;
for(i= survivor[0]; i<=last_non_zero + 1; i++){
int score= score_tab[i];
if(i) score += lambda*2; //FIXME exacter?
if(score < last_score){
last_score= score;
last_i= i;
last_level= level_tab[i];
last_run= run_tab[i];
}
}
}
s->coded_score[n] = last_score;
dc= FFABS(block[0]);
last_non_zero= last_i - 1;
memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
if(last_non_zero < start_i)
return last_non_zero;
if(last_non_zero == 0 && start_i == 0){
int best_level= 0;
int best_score= dc * dc;
for(i=0; i<coeff_count[0]; i++){
int level= coeff[i][0];
int alevel= FFABS(level);
int unquant_coeff, score, distortion;
if(s->out_format == FMT_H263){
unquant_coeff= (alevel*qmul + qadd)>>3;
}else{ //MPEG1
unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
unquant_coeff = (unquant_coeff - 1) | 1;
}
unquant_coeff = (unquant_coeff + 4) >> 3;
unquant_coeff<<= 3 + 3;
distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
level+=64;
if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
else score= distortion + esc_length*lambda;
if(score < best_score){
best_score= score;
best_level= level - 64;
}
}
block[0]= best_level;
s->coded_score[n] = best_score - dc*dc;
if(best_level == 0) return -1;
else return last_non_zero;
}
i= last_i;
assert(last_level);
block[ perm_scantable[last_non_zero] ]= last_level;
i -= last_run + 1;
for(; i>start_i; i -= run_tab[i] + 1){
block[ perm_scantable[i-1] ]= level_tab[i];
}
return last_non_zero;
}
//#define REFINE_STATS 1
static int16_t basis[64][64];
static void build_basis(uint8_t *perm){
int i, j, x, y;
emms_c();
for(i=0; i<8; i++){
for(j=0; j<8; j++){
for(y=0; y<8; y++){
for(x=0; x<8; x++){
double s= 0.25*(1<<BASIS_SHIFT);
int index= 8*i + j;
int perm_index= perm[index];
if(i==0) s*= sqrt(0.5);
if(j==0) s*= sqrt(0.5);
basis[perm_index][8*x + y]= lrintf(s * cos((M_PI/8.0)*i*(x+0.5)) * cos((M_PI/8.0)*j*(y+0.5)));
}
}
}
}
}
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
DCTELEM *block, int16_t *weight, DCTELEM *orig,
int n, int qscale){
int16_t rem[64];
LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
const uint8_t *scantable= s->intra_scantable.scantable;
const uint8_t *perm_scantable= s->intra_scantable.permutated;
// unsigned int threshold1, threshold2;
// int bias=0;
int run_tab[65];
int prev_run=0;
int prev_level=0;
int qmul, qadd, start_i, last_non_zero, i, dc;
uint8_t * length;
uint8_t * last_length;
int lambda;
int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
#ifdef REFINE_STATS
static int count=0;
static int after_last=0;
static int to_zero=0;
static int from_zero=0;
static int raise=0;
static int lower=0;
static int messed_sign=0;
#endif
if(basis[0][0] == 0)
build_basis(s->dsp.idct_permutation);
qmul= qscale*2;
qadd= (qscale-1)|1;
if (s->mb_intra) {
if (!s->h263_aic) {
if (n < 4)
q = s->y_dc_scale;
else
q = s->c_dc_scale;
} else{
/* For AIC we skip quant/dequant of INTRADC */
q = 1;
qadd=0;
}
q <<= RECON_SHIFT-3;
/* note: block[0] is assumed to be positive */
dc= block[0]*q;
// block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
// bias= 1<<(QMAT_SHIFT-1);
length = s->intra_ac_vlc_length;
last_length= s->intra_ac_vlc_last_length;
} else {
dc= 0;
start_i = 0;
length = s->inter_ac_vlc_length;
last_length= s->inter_ac_vlc_last_length;
}
last_non_zero = s->block_last_index[n];
#ifdef REFINE_STATS
{START_TIMER
#endif
dc += (1<<(RECON_SHIFT-1));
for(i=0; i<64; i++){
rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
}
#ifdef REFINE_STATS
STOP_TIMER("memset rem[]")}
#endif
sum=0;
for(i=0; i<64; i++){
int one= 36;
int qns=4;
int w;
w= FFABS(weight[i]) + qns*one;
w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
weight[i] = w;
// w=weight[i] = (63*qns + (w/2)) / w;
assert(w>0);
assert(w<(1<<6));
sum += w*w;
}
lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
#ifdef REFINE_STATS
{START_TIMER
#endif
run=0;
rle_index=0;
for(i=start_i; i<=last_non_zero; i++){
int j= perm_scantable[i];
const int level= block[j];
int coeff;
if(level){
if(level<0) coeff= qmul*level - qadd;
else coeff= qmul*level + qadd;
run_tab[rle_index++]=run;
run=0;
s->dsp.add_8x8basis(rem, basis[j], coeff);
}else{
run++;
}
}
#ifdef REFINE_STATS
if(last_non_zero>0){
STOP_TIMER("init rem[]")
}
}
{START_TIMER
#endif
for(;;){
int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
int best_coeff=0;
int best_change=0;
int run2, best_unquant_change=0, analyze_gradient;
#ifdef REFINE_STATS
{START_TIMER
#endif
analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
if(analyze_gradient){
#ifdef REFINE_STATS
{START_TIMER
#endif
for(i=0; i<64; i++){
int w= weight[i];
d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
}
#ifdef REFINE_STATS
STOP_TIMER("rem*w*w")}
{START_TIMER
#endif
s->dsp.fdct(d1);
#ifdef REFINE_STATS
STOP_TIMER("dct")}
#endif
}
if(start_i){
const int level= block[0];
int change, old_coeff;
assert(s->mb_intra);
old_coeff= q*level;
for(change=-1; change<=1; change+=2){
int new_level= level + change;
int score, new_coeff;
new_coeff= q*new_level;
if(new_coeff >= 2048 || new_coeff < 0)
continue;
score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
if(score<best_score){
best_score= score;
best_coeff= 0;
best_change= change;
best_unquant_change= new_coeff - old_coeff;
}
}
}
run=0;
rle_index=0;
run2= run_tab[rle_index++];
prev_level=0;
prev_run=0;
for(i=start_i; i<64; i++){
int j= perm_scantable[i];
const int level= block[j];
int change, old_coeff;
if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
break;
if(level){
if(level<0) old_coeff= qmul*level - qadd;
else old_coeff= qmul*level + qadd;
run2= run_tab[rle_index++]; //FIXME ! maybe after last
}else{
old_coeff=0;
run2--;
assert(run2>=0 || i >= last_non_zero );
}
for(change=-1; change<=1; change+=2){
int new_level= level + change;
int score, new_coeff, unquant_change;
score=0;
if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
continue;
if(new_level){
if(new_level<0) new_coeff= qmul*new_level - qadd;
else new_coeff= qmul*new_level + qadd;
if(new_coeff >= 2048 || new_coeff <= -2048)
continue;
//FIXME check for overflow
if(level){
if(level < 63 && level > -63){
if(i < last_non_zero)
score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
- length[UNI_AC_ENC_INDEX(run, level+64)];
else
score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
- last_length[UNI_AC_ENC_INDEX(run, level+64)];
}
}else{
assert(FFABS(new_level)==1);
if(analyze_gradient){
int g= d1[ scantable[i] ];
if(g && (g^new_level) >= 0)
continue;
}
if(i < last_non_zero){
int next_i= i + run2 + 1;
int next_level= block[ perm_scantable[next_i] ] + 64;
if(next_level&(~127))
next_level= 0;
if(next_i < last_non_zero)
score += length[UNI_AC_ENC_INDEX(run, 65)]
+ length[UNI_AC_ENC_INDEX(run2, next_level)]
- length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
else
score += length[UNI_AC_ENC_INDEX(run, 65)]
+ last_length[UNI_AC_ENC_INDEX(run2, next_level)]
- last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
}else{
score += last_length[UNI_AC_ENC_INDEX(run, 65)];
if(prev_level){
score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
- last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
}
}
}
}else{
new_coeff=0;
assert(FFABS(level)==1);
if(i < last_non_zero){
int next_i= i + run2 + 1;
int next_level= block[ perm_scantable[next_i] ] + 64;
if(next_level&(~127))
next_level= 0;
if(next_i < last_non_zero)
score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
- length[UNI_AC_ENC_INDEX(run2, next_level)]
- length[UNI_AC_ENC_INDEX(run, 65)];
else
score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
- last_length[UNI_AC_ENC_INDEX(run2, next_level)]
- length[UNI_AC_ENC_INDEX(run, 65)];
}else{
score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
if(prev_level){
score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
- length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
}
}
}
score *= lambda;
unquant_change= new_coeff - old_coeff;
assert((score < 100*lambda && score > -100*lambda) || lambda==0);
score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
if(score<best_score){
best_score= score;
best_coeff= i;
best_change= change;
best_unquant_change= unquant_change;
}
}
if(level){
prev_level= level + 64;
if(prev_level&(~127))
prev_level= 0;
prev_run= run;
run=0;
}else{
run++;
}
}
#ifdef REFINE_STATS
STOP_TIMER("iterative step")}
#endif
if(best_change){
int j= perm_scantable[ best_coeff ];
block[j] += best_change;
if(best_coeff > last_non_zero){
last_non_zero= best_coeff;
assert(block[j]);
#ifdef REFINE_STATS
after_last++;
#endif
}else{
#ifdef REFINE_STATS
if(block[j]){
if(block[j] - best_change){
if(FFABS(block[j]) > FFABS(block[j] - best_change)){
raise++;
}else{
lower++;
}
}else{
from_zero++;
}
}else{
to_zero++;
}
#endif
for(; last_non_zero>=start_i; last_non_zero--){
if(block[perm_scantable[last_non_zero]])
break;
}
}
#ifdef REFINE_STATS
count++;
if(256*256*256*64 % count == 0){
printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
}
#endif
run=0;
rle_index=0;
for(i=start_i; i<=last_non_zero; i++){
int j= perm_scantable[i];
const int level= block[j];
if(level){
run_tab[rle_index++]=run;
run=0;
}else{
run++;
}
}
s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
}else{
break;
}
}
#ifdef REFINE_STATS
if(last_non_zero>0){
STOP_TIMER("iterative search")
}
}
#endif
return last_non_zero;
}
int dct_quantize_c(MpegEncContext *s,
DCTELEM *block, int n,
int qscale, int *overflow)
{
int i, j, level, last_non_zero, q, start_i;
const int *qmat;
const uint8_t *scantable= s->intra_scantable.scantable;
int bias;
int max=0;
unsigned int threshold1, threshold2;
s->dsp.fdct (block);
if(s->dct_error_sum)
s->denoise_dct(s, block);
if (s->mb_intra) {
if (!s->h263_aic) {
if (n < 4)
q = s->y_dc_scale;
else
q = s->c_dc_scale;
q = q << 3;
} else
/* For AIC we skip quant/dequant of INTRADC */
q = 1 << 3;
/* note: block[0] is assumed to be positive */
block[0] = (block[0] + (q >> 1)) / q;
start_i = 1;
last_non_zero = 0;
qmat = s->q_intra_matrix[qscale];
bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
} else {
start_i = 0;
last_non_zero = -1;
qmat = s->q_inter_matrix[qscale];
bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
}
threshold1= (1<<QMAT_SHIFT) - bias - 1;
threshold2= (threshold1<<1);
for(i=63;i>=start_i;i--) {
j = scantable[i];
level = block[j] * qmat[j];
if(((unsigned)(level+threshold1))>threshold2){
last_non_zero = i;
break;
}else{
block[j]=0;
}
}
for(i=start_i; i<=last_non_zero; i++) {
j = scantable[i];
level = block[j] * qmat[j];
// if( bias+level >= (1<<QMAT_SHIFT)
// || bias-level >= (1<<QMAT_SHIFT)){
if(((unsigned)(level+threshold1))>threshold2){
if(level>0){
level= (bias + level)>>QMAT_SHIFT;
block[j]= level;
}else{
level= (bias - level)>>QMAT_SHIFT;
block[j]= -level;
}
max |=level;
}else{
block[j]=0;
}
}
*overflow= s->max_qcoeff < max; //overflow might have happened
/* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
return last_non_zero;
}
AVCodec ff_h263_encoder = {
"h263",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_H263,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
};
AVCodec ff_h263p_encoder = {
"h263p",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_H263P,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
};
AVCodec ff_msmpeg4v1_encoder = {
"msmpeg4v1",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_MSMPEG4V1,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
};
AVCodec ff_msmpeg4v2_encoder = {
"msmpeg4v2",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_MSMPEG4V2,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
};
AVCodec ff_msmpeg4v3_encoder = {
"msmpeg4",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_MSMPEG4V3,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
};
AVCodec ff_wmv1_encoder = {
"wmv1",
AVMEDIA_TYPE_VIDEO,
CODEC_ID_WMV1,
sizeof(MpegEncContext),
MPV_encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
};
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