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https://github.com/FFmpeg/FFmpeg.git
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use block[] in structure to have it aligned on 8 bytes for mmx optimizations - dct_unquantize is always a function pointer - added specialized dct_unquantize_h263
Originally committed as revision 22 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard
parent
b7ec19d39e
commit
21af69f787
@ -24,15 +24,17 @@
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#include "dsputil.h"
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#include "mpegvideo.h"
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#include "../config.h"
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#ifdef ARCH_X86
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#include "i386/mpegvideo.c"
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#endif
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#ifndef DCT_UNQUANTIZE
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#define DCT_UNQUANTIZE(a,b,c,d) dct_unquantize(a,b,c,d)
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#endif
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static void encode_picture(MpegEncContext *s, int picture_number);
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static void rate_control_init(MpegEncContext *s);
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static int rate_estimate_qscale(MpegEncContext *s);
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static void dct_unquantize_mpeg1_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static void dct_unquantize_h263_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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static int dct_quantize(MpegEncContext *s, DCTELEM *block, int n, int qscale);
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static int dct_quantize_mmx(MpegEncContext *s,
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DCTELEM *block, int n,
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int qscale);
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#define EDGE_WIDTH 16
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/* enable all paranoid tests for rounding, overflows, etc... */
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@ -59,10 +61,6 @@ static UINT8 h263_chroma_roundtab[16] = {
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0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
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};
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static void encode_picture(MpegEncContext *s, int picture_number);
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static void rate_control_init(MpegEncContext *s);
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static int rate_estimate_qscale(MpegEncContext *s);
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/* default motion estimation */
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int motion_estimation_method = ME_LOG;
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@ -98,8 +96,13 @@ int MPV_common_init(MpegEncContext *s)
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int c_size, i;
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UINT8 *pict;
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#if defined ( HAVE_MMX ) && defined ( BIN_PORTABILITY )
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MPV_common_init_mmx();
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if (s->out_format == FMT_H263)
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s->dct_unquantize = dct_unquantize_h263_c;
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else
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s->dct_unquantize = dct_unquantize_mpeg1_c;
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#ifdef HAVE_MMX
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MPV_common_init_mmx(s);
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#endif
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s->mb_width = (s->width + 15) / 16;
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s->mb_height = (s->height + 15) / 16;
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@ -358,7 +361,6 @@ static void draw_edges(UINT8 *buf, int wrap, int width, int height, int w)
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}
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/* generic function for encode/decode called before a frame is coded/decoded */
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#ifndef ARCH_X86
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void MPV_frame_start(MpegEncContext *s)
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{
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int i;
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@ -378,7 +380,7 @@ void MPV_frame_start(MpegEncContext *s)
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}
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}
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}
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#endif
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/* generic function for encode/decode called after a frame has been coded/decoded */
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void MPV_frame_end(MpegEncContext *s)
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{
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@ -461,12 +463,6 @@ static inline int clip(int a, int amin, int amax)
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return a;
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}
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static int dct_quantize(MpegEncContext *s, DCTELEM *block, int n, int qscale);
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static int dct_quantize_mmx(MpegEncContext *s,
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DCTELEM *block, int n,
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int qscale);
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static void dct_unquantize(MpegEncContext *s, DCTELEM *block, int n, int qscale);
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/* apply one mpeg motion vector to the three components */
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static inline void mpeg_motion(MpegEncContext *s,
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UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
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@ -633,7 +629,7 @@ static inline void put_dct(MpegEncContext *s,
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DCTELEM *block, int i, UINT8 *dest, int line_size)
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{
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if (!s->mpeg2)
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DCT_UNQUANTIZE(s, block, i, s->qscale);
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s->dct_unquantize(s, block, i, s->qscale);
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j_rev_dct (block);
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put_pixels_clamped(block, dest, line_size);
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}
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@ -644,7 +640,7 @@ static inline void add_dct(MpegEncContext *s,
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{
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if (s->block_last_index[i] >= 0) {
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if (!s->mpeg2)
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DCT_UNQUANTIZE(s, block, i, s->qscale);
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s->dct_unquantize(s, block, i, s->qscale);
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j_rev_dct (block);
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add_pixels_clamped(block, dest, line_size);
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}
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@ -740,7 +736,7 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
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UINT8 *mbskip_ptr;
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/* avoid copy if macroblock skipped in last frame too */
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if (!s->encoding) {
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if (!s->encoding && s->pict_type != B_TYPE) {
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mbskip_ptr = &s->mbskip_table[s->mb_y * s->mb_width + s->mb_x];
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if (s->mb_skiped) {
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s->mb_skiped = 0;
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@ -810,7 +806,6 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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{
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int mb_x, mb_y, wrap;
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UINT8 *ptr;
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DCTELEM block[6][64];
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int i, motion_x, motion_y;
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s->picture_number = picture_number;
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@ -879,17 +874,17 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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/* get the pixels */
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wrap = s->linesize;
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ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
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get_pixels(block[0], ptr, wrap);
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get_pixels(block[1], ptr + 8, wrap);
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get_pixels(block[2], ptr + 8 * wrap, wrap);
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get_pixels(block[3], ptr + 8 * wrap + 8, wrap);
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get_pixels(s->block[0], ptr, wrap);
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get_pixels(s->block[1], ptr + 8, wrap);
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get_pixels(s->block[2], ptr + 8 * wrap, wrap);
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get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
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wrap = s->linesize >> 1;
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ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
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get_pixels(block[4], ptr, wrap);
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get_pixels(s->block[4], ptr, wrap);
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wrap = s->linesize >> 1;
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ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
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get_pixels(block[5], ptr, wrap);
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get_pixels(s->block[5], ptr, wrap);
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/* subtract previous frame if non intra */
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if (!s->mb_intra) {
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@ -900,10 +895,10 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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((mb_y * 16 + (motion_y >> 1)) * s->linesize) +
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(mb_x * 16 + (motion_x >> 1));
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sub_pixels_2(block[0], ptr, s->linesize, dxy);
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sub_pixels_2(block[1], ptr + 8, s->linesize, dxy);
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sub_pixels_2(block[2], ptr + s->linesize * 8, s->linesize, dxy);
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sub_pixels_2(block[3], ptr + 8 + s->linesize * 8, s->linesize ,dxy);
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sub_pixels_2(s->block[0], ptr, s->linesize, dxy);
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sub_pixels_2(s->block[1], ptr + 8, s->linesize, dxy);
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sub_pixels_2(s->block[2], ptr + s->linesize * 8, s->linesize, dxy);
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sub_pixels_2(s->block[3], ptr + 8 + s->linesize * 8, s->linesize ,dxy);
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if (s->out_format == FMT_H263) {
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/* special rounding for h263 */
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@ -923,9 +918,9 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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}
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offset = ((mb_y * 8 + my) * (s->linesize >> 1)) + (mb_x * 8 + mx);
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ptr = s->last_picture[1] + offset;
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sub_pixels_2(block[4], ptr, s->linesize >> 1, dxy);
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sub_pixels_2(s->block[4], ptr, s->linesize >> 1, dxy);
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ptr = s->last_picture[2] + offset;
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sub_pixels_2(block[5], ptr, s->linesize >> 1, dxy);
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sub_pixels_2(s->block[5], ptr, s->linesize >> 1, dxy);
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}
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emms_c();
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@ -943,25 +938,25 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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for(i=0;i<6;i++) {
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int last_index;
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if (av_fdct == jpeg_fdct_ifast)
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last_index = dct_quantize(s, block[i], i, s->qscale);
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last_index = dct_quantize(s, s->block[i], i, s->qscale);
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else
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last_index = dct_quantize_mmx(s, block[i], i, s->qscale);
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last_index = dct_quantize_mmx(s, s->block[i], i, s->qscale);
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s->block_last_index[i] = last_index;
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}
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/* huffman encode */
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switch(s->out_format) {
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case FMT_MPEG1:
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mpeg1_encode_mb(s, block, motion_x, motion_y);
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mpeg1_encode_mb(s, s->block, motion_x, motion_y);
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break;
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case FMT_H263:
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if (s->h263_msmpeg4)
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msmpeg4_encode_mb(s, block, motion_x, motion_y);
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msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
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else
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h263_encode_mb(s, block, motion_x, motion_y);
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h263_encode_mb(s, s->block, motion_x, motion_y);
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break;
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case FMT_MJPEG:
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mjpeg_encode_mb(s, block);
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mjpeg_encode_mb(s, s->block);
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break;
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}
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@ -969,7 +964,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
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s->mv[0][0][0] = motion_x;
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s->mv[0][0][1] = motion_y;
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MPV_decode_mb(s, block);
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MPV_decode_mb(s, s->block);
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}
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}
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}
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@ -1121,9 +1116,8 @@ static int dct_quantize_mmx(MpegEncContext *s,
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return last_non_zero;
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}
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#ifndef HAVE_DCT_UNQUANTIZE
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static void dct_unquantize(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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static void dct_unquantize_mpeg1_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int i, level;
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const UINT16 *quant_matrix;
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@ -1133,10 +1127,6 @@ static void dct_unquantize(MpegEncContext *s,
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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if (s->out_format == FMT_H263) {
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i = 1;
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goto unquant_even;
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}
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/* XXX: only mpeg1 */
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quant_matrix = s->intra_matrix;
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for(i=1;i<64;i++) {
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@ -1160,7 +1150,6 @@ static void dct_unquantize(MpegEncContext *s,
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}
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} else {
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i = 0;
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unquant_even:
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quant_matrix = s->non_intra_matrix;
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for(;i<64;i++) {
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level = block[i];
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@ -1185,7 +1174,41 @@ static void dct_unquantize(MpegEncContext *s,
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}
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}
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}
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#endif
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static void dct_unquantize_h263_c(MpegEncContext *s,
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DCTELEM *block, int n, int qscale)
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{
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int i, level, qmul, qadd;
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if (s->mb_intra) {
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if (n < 4)
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block[0] = block[0] * s->y_dc_scale;
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else
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block[0] = block[0] * s->c_dc_scale;
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i = 1;
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} else {
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i = 0;
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}
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qmul = s->qscale << 1;
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qadd = (s->qscale - 1) | 1;
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for(;i<64;i++) {
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level = block[i];
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if (level) {
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if (level < 0) {
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level = level * qmul - qadd;
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} else {
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level = level * qmul + qadd;
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}
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#ifdef PARANOID
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if (level < -2048 || level > 2047)
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fprintf(stderr, "unquant error %d %d\n", i, level);
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#endif
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block[i] = level;
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}
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}
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}
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/* rate control */
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@ -173,6 +173,10 @@ typedef struct MpegEncContext {
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int interlaced_dct;
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int last_qscale;
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int first_slice;
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DCTELEM block[6][64] __align8;
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void (*dct_unquantize)(struct MpegEncContext *s,
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DCTELEM *block, int n, int qscale);
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} MpegEncContext;
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extern const UINT8 zigzag_direct[64];
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@ -182,6 +186,9 @@ void MPV_common_end(MpegEncContext *s);
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void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64]);
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void MPV_frame_start(MpegEncContext *s);
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void MPV_frame_end(MpegEncContext *s);
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#ifdef HAVE_MMX
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void MPV_common_init_mmx(MpegEncContext *s);
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#endif
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/* motion_est.c */
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