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FFmpeg/libavcodec/vdpau.c
Carl Eugen Hoyos 66b50bc0b2 Cosmetics: Fix a comment. 
Originally committed as revision 22533 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-14 23:52:45 +00:00

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/*
* Video Decode and Presentation API for UNIX (VDPAU) is used for
* HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
*
* Copyright (c) 2008 NVIDIA
*
* 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
*/
#include <limits.h>
#include "avcodec.h"
#include "h264.h"
#include "vc1.h"
#undef NDEBUG
#include <assert.h>
#include "vdpau.h"
#include "vdpau_internal.h"
/**
* \addtogroup VDPAU_Decoding
*
* @{
*/
void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
{
H264Context *h = s->avctx->priv_data;
struct vdpau_render_state *render, *render_ref;
VdpReferenceFrameH264 *rf, *rf2;
Picture *pic;
int i, list, pic_frame_idx;
render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
assert(render);
rf = &render->info.h264.referenceFrames[0];
#define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
for (list = 0; list < 2; ++list) {
Picture **lp = list ? h->long_ref : h->short_ref;
int ls = list ? h->long_ref_count : h->short_ref_count;
for (i = 0; i < ls; ++i) {
pic = lp[i];
if (!pic || !pic->reference)
continue;
pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
render_ref = (struct vdpau_render_state *)pic->data[0];
assert(render_ref);
rf2 = &render->info.h264.referenceFrames[0];
while (rf2 != rf) {
if (
(rf2->surface == render_ref->surface)
&& (rf2->is_long_term == pic->long_ref)
&& (rf2->frame_idx == pic_frame_idx)
)
break;
++rf2;
}
if (rf2 != rf) {
rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
continue;
}
if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
continue;
rf->surface = render_ref->surface;
rf->is_long_term = pic->long_ref;
rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
rf->field_order_cnt[0] = pic->field_poc[0];
rf->field_order_cnt[1] = pic->field_poc[1];
rf->frame_idx = pic_frame_idx;
++rf;
}
}
for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
rf->surface = VDP_INVALID_HANDLE;
rf->is_long_term = 0;
rf->top_is_reference = 0;
rf->bottom_is_reference = 0;
rf->field_order_cnt[0] = 0;
rf->field_order_cnt[1] = 0;
rf->frame_idx = 0;
}
}
void ff_vdpau_add_data_chunk(MpegEncContext *s,
const uint8_t *buf, int buf_size)
{
struct vdpau_render_state *render;
render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
assert(render);
render->bitstream_buffers= av_fast_realloc(
render->bitstream_buffers,
&render->bitstream_buffers_allocated,
sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
);
render->bitstream_buffers[render->bitstream_buffers_used].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
render->bitstream_buffers[render->bitstream_buffers_used].bitstream = buf;
render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
render->bitstream_buffers_used++;
}
void ff_vdpau_h264_picture_complete(MpegEncContext *s)
{
H264Context *h = s->avctx->priv_data;
struct vdpau_render_state *render;
int i;
render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
assert(render);
render->info.h264.slice_count = h->slice_num;
if (render->info.h264.slice_count < 1)
return;
for (i = 0; i < 2; ++i) {
int foc = s->current_picture_ptr->field_poc[i];
if (foc == INT_MAX)
foc = 0;
render->info.h264.field_order_cnt[i] = foc;
}
render->info.h264.is_reference = (s->current_picture_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
render->info.h264.frame_num = h->frame_num;
render->info.h264.field_pic_flag = s->picture_structure != PICT_FRAME;
render->info.h264.bottom_field_flag = s->picture_structure == PICT_BOTTOM_FIELD;
render->info.h264.num_ref_frames = h->sps.ref_frame_count;
render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff && !render->info.h264.field_pic_flag;
render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
render->info.h264.pic_order_cnt_type = h->sps.poc_type;
render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
memcpy(render->info.h264.scaling_lists_8x8, h->pps.scaling_matrix8, sizeof(render->info.h264.scaling_lists_8x8));
ff_draw_horiz_band(s, 0, s->avctx->height);
render->bitstream_buffers_used = 0;
}
void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
int buf_size, int slice_count)
{
struct vdpau_render_state *render, *last, *next;
int i;
if (!s->current_picture_ptr) return;
render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
assert(render);
/* fill VdpPictureInfoMPEG1Or2 struct */
render->info.mpeg.picture_structure = s->picture_structure;
render->info.mpeg.picture_coding_type = s->pict_type;
render->info.mpeg.intra_dc_precision = s->intra_dc_precision;
render->info.mpeg.frame_pred_frame_dct = s->frame_pred_frame_dct;
render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
render->info.mpeg.intra_vlc_format = s->intra_vlc_format;
render->info.mpeg.alternate_scan = s->alternate_scan;
render->info.mpeg.q_scale_type = s->q_scale_type;
render->info.mpeg.top_field_first = s->top_field_first;
render->info.mpeg.full_pel_forward_vector = s->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.full_pel_backward_vector = s->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
render->info.mpeg.f_code[0][0] = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
render->info.mpeg.f_code[0][1] = s->mpeg_f_code[0][1];
render->info.mpeg.f_code[1][0] = s->mpeg_f_code[1][0];
render->info.mpeg.f_code[1][1] = s->mpeg_f_code[1][1];
for (i = 0; i < 64; ++i) {
render->info.mpeg.intra_quantizer_matrix[i] = s->intra_matrix[i];
render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
}
render->info.mpeg.forward_reference = VDP_INVALID_HANDLE;
render->info.mpeg.backward_reference = VDP_INVALID_HANDLE;
switch(s->pict_type){
case FF_B_TYPE:
next = (struct vdpau_render_state *)s->next_picture.data[0];
assert(next);
render->info.mpeg.backward_reference = next->surface;
// no return here, going to set forward prediction
case FF_P_TYPE:
last = (struct vdpau_render_state *)s->last_picture.data[0];
if (!last) // FIXME: Does this test make sense?
last = render; // predict second field from the first
render->info.mpeg.forward_reference = last->surface;
}
ff_vdpau_add_data_chunk(s, buf, buf_size);
render->info.mpeg.slice_count = slice_count;
if (slice_count)
ff_draw_horiz_band(s, 0, s->avctx->height);
render->bitstream_buffers_used = 0;
}
void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
int buf_size)
{
VC1Context *v = s->avctx->priv_data;
struct vdpau_render_state *render, *last, *next;
render = (struct vdpau_render_state *)s->current_picture.data[0];
assert(render);
/* fill LvPictureInfoVC1 struct */
render->info.vc1.frame_coding_mode = v->fcm;
render->info.vc1.postprocflag = v->postprocflag;
render->info.vc1.pulldown = v->broadcast;
render->info.vc1.interlace = v->interlace;
render->info.vc1.tfcntrflag = v->tfcntrflag;
render->info.vc1.finterpflag = v->finterpflag;
render->info.vc1.psf = v->psf;
render->info.vc1.dquant = v->dquant;
render->info.vc1.panscan_flag = v->panscanflag;
render->info.vc1.refdist_flag = v->refdist_flag;
render->info.vc1.quantizer = v->quantizer_mode;
render->info.vc1.extended_mv = v->extended_mv;
render->info.vc1.extended_dmv = v->extended_dmv;
render->info.vc1.overlap = v->overlap;
render->info.vc1.vstransform = v->vstransform;
render->info.vc1.loopfilter = v->s.loop_filter;
render->info.vc1.fastuvmc = v->fastuvmc;
render->info.vc1.range_mapy_flag = v->range_mapy_flag;
render->info.vc1.range_mapy = v->range_mapy;
render->info.vc1.range_mapuv_flag = v->range_mapuv_flag;
render->info.vc1.range_mapuv = v->range_mapuv;
/* Specific to simple/main profile only */
render->info.vc1.multires = v->multires;
render->info.vc1.syncmarker = v->s.resync_marker;
render->info.vc1.rangered = v->rangered | (v->rangeredfrm << 1);
render->info.vc1.maxbframes = v->s.max_b_frames;
render->info.vc1.deblockEnable = v->postprocflag & 1;
render->info.vc1.pquant = v->pq;
render->info.vc1.forward_reference = VDP_INVALID_HANDLE;
render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
if (v->bi_type)
render->info.vc1.picture_type = 4;
else
render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
switch(s->pict_type){
case FF_B_TYPE:
next = (struct vdpau_render_state *)s->next_picture.data[0];
assert(next);
render->info.vc1.backward_reference = next->surface;
// no break here, going to set forward prediction
case FF_P_TYPE:
last = (struct vdpau_render_state *)s->last_picture.data[0];
if (!last) // FIXME: Does this test make sense?
last = render; // predict second field from the first
render->info.vc1.forward_reference = last->surface;
}
ff_vdpau_add_data_chunk(s, buf, buf_size);
render->info.vc1.slice_count = 1;
ff_draw_horiz_band(s, 0, s->avctx->height);
render->bitstream_buffers_used = 0;
}
void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
int buf_size)
{
struct vdpau_render_state *render, *last, *next;
int i;
if (!s->current_picture_ptr) return;
render = (struct vdpau_render_state *)s->current_picture_ptr->data[0];
assert(render);
/* fill VdpPictureInfoMPEG4Part2 struct */
render->info.mpeg4.trd[0] = s->pp_time;
render->info.mpeg4.trb[0] = s->pb_time;
render->info.mpeg4.trd[1] = s->pp_field_time >> 1;
render->info.mpeg4.trb[1] = s->pb_field_time >> 1;
render->info.mpeg4.vop_time_increment_resolution = s->avctx->time_base.den;
render->info.mpeg4.vop_coding_type = 0;
render->info.mpeg4.vop_fcode_forward = s->f_code;
render->info.mpeg4.vop_fcode_backward = s->b_code;
render->info.mpeg4.resync_marker_disable = !s->resync_marker;
render->info.mpeg4.interlaced = !s->progressive_sequence;
render->info.mpeg4.quant_type = s->mpeg_quant;
render->info.mpeg4.quarter_sample = s->quarter_sample;
render->info.mpeg4.short_video_header = s->avctx->codec->id == CODEC_ID_H263;
render->info.mpeg4.rounding_control = s->no_rounding;
render->info.mpeg4.alternate_vertical_scan_flag = s->alternate_scan;
render->info.mpeg4.top_field_first = s->top_field_first;
for (i = 0; i < 64; ++i) {
render->info.mpeg4.intra_quantizer_matrix[i] = s->intra_matrix[i];
render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
}
render->info.mpeg4.forward_reference = VDP_INVALID_HANDLE;
render->info.mpeg4.backward_reference = VDP_INVALID_HANDLE;
switch (s->pict_type) {
case FF_B_TYPE:
next = (struct vdpau_render_state *)s->next_picture.data[0];
assert(next);
render->info.mpeg4.backward_reference = next->surface;
render->info.mpeg4.vop_coding_type = 2;
// no break here, going to set forward prediction
case FF_P_TYPE:
last = (struct vdpau_render_state *)s->last_picture.data[0];
assert(last);
render->info.mpeg4.forward_reference = last->surface;
}
ff_vdpau_add_data_chunk(s, buf, buf_size);
ff_draw_horiz_band(s, 0, s->avctx->height);
render->bitstream_buffers_used = 0;
}
/* @}*/
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