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Add VDPAU hardware accelerated decoding for MPEG1 and MPEG2 which can

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be used by video players.

Original patch by NVIDIA corporation.

Originally committed as revision 16628 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
NVIDIA Corporation 2009-01-16 02:14:07 +00:00 committed by Carl Eugen Hoyos
parent 3700d80028
commit d37edddc09
9 changed files with 108 additions and 3 deletions
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1
configure vendored
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@ -993,6 +993,7 @@ mjpeg_encoder_select="aandct"
mpeg1video_encoder_select="aandct"
mpeg2video_encoder_select="aandct"
mpeg4_encoder_select="aandct"
mpeg_vdpau_decoder_deps="vdpau"
mpeg_xvmc_decoder_deps="xvmc X11_extensions_XvMClib_h"
msmpeg4v1_encoder_select="aandct"
msmpeg4v2_encoder_select="aandct"

1
libavcodec/Makefile
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@ -133,6 +133,7 @@ OBJS-$(CONFIG_MP3ON4_DECODER) += mpegaudiodec.o mpegaudiodecheader.o mp
OBJS-$(CONFIG_MPC7_DECODER) += mpc7.o mpc.o mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
OBJS-$(CONFIG_MPC8_DECODER) += mpc8.o mpc.o mpegaudiodec.o mpegaudiodecheader.o mpegaudio.o mpegaudiodata.o
OBJS-$(CONFIG_MDEC_DECODER) += mdec.o mpeg12.o mpeg12data.o mpegvideo.o error_resilience.o
OBJS-$(CONFIG_MPEG_VDPAU_DECODER) += vdpauvideo.o mpeg12.o mpeg12data.o mpegvideo.o error_resilience.o
OBJS-$(CONFIG_MPEGVIDEO_DECODER) += mpeg12.o mpeg12data.o mpegvideo.o error_resilience.o
OBJS-$(CONFIG_MPEG1VIDEO_DECODER) += mpeg12.o mpeg12data.o mpegvideo.o error_resilience.o
OBJS-$(CONFIG_MPEG1VIDEO_ENCODER) += mpeg12enc.o mpeg12data.o mpegvideo_enc.o motion_est.o ratecontrol.o mpeg12.o mpeg12data.o mpegvideo.o error_resilience.o

1
libavcodec/allcodecs.c
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@ -109,6 +109,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (MPEG2VIDEO, mpeg2video);
REGISTER_ENCDEC (MPEG4, mpeg4);
REGISTER_DECODER (MPEGVIDEO, mpegvideo);
REGISTER_DECODER (MPEG_VDPAU, mpeg_vdpau);
REGISTER_ENCDEC (MSMPEG4V1, msmpeg4v1);
REGISTER_ENCDEC (MSMPEG4V2, msmpeg4v2);
REGISTER_ENCDEC (MSMPEG4V3, msmpeg4v3);

6
libavcodec/imgconvert.c
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@ -267,6 +267,12 @@ static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
[PIX_FMT_XVMC_MPEG2_IDCT] = {
.name = "xvmcidct",
},
[PIX_FMT_VDPAU_MPEG1] = {
.name = "vdpau_mpeg1",
},
[PIX_FMT_VDPAU_MPEG2] = {
.name = "vdpau_mpeg2",
},
[PIX_FMT_VDPAU_H264] = {
.name = "vdpau_h264",
},

40
libavcodec/mpeg12.c
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@ -34,6 +34,7 @@
#include "mpeg12data.h"
#include "mpeg12decdata.h"
#include "bytestream.h"
#include "vdpau_internal.h"
//#undef NDEBUG
//#include <assert.h>
@ -1218,7 +1219,12 @@ static enum PixelFormat mpeg_get_pixelformat(AVCodecContext *avctx){
if(avctx->xvmc_acceleration)
return avctx->get_format(avctx,pixfmt_xvmc_mpg2_420);
else{
else if(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
if(avctx->codec_id == CODEC_ID_MPEG1VIDEO)
return PIX_FMT_VDPAU_MPEG1;
else
return PIX_FMT_VDPAU_MPEG2;
}else{
if(s->chroma_format < 2)
return PIX_FMT_YUV420P;
else if(s->chroma_format == 2)
@ -1307,7 +1313,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
avctx->pix_fmt = mpeg_get_pixelformat(avctx);
//until then pix_fmt may be changed right after codec init
if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT )
if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT ||
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU )
if( avctx->idct_algo == FF_IDCT_AUTO )
avctx->idct_algo = FF_IDCT_SIMPLE;
@ -2076,7 +2083,8 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
avctx->pix_fmt = mpeg_get_pixelformat(avctx);
if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT )
if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT ||
s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU )
if( avctx->idct_algo == FF_IDCT_AUTO )
avctx->idct_algo = FF_IDCT_SIMPLE;
@ -2304,6 +2312,10 @@ static int decode_chunks(AVCodecContext *avctx,
for(i=0; i<s->slice_count; i++)
s2->error_count += s2->thread_context[i]->error_count;
}
if (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
ff_vdpau_mpeg_picture_complete(s2, buf, buf_size, s->slice_count);
if (slice_end(avctx, picture)) {
if(s2->last_picture_ptr || s2->low_delay) //FIXME merge with the stuff in mpeg_decode_slice
*data_size = sizeof(AVPicture);
@ -2389,6 +2401,11 @@ static int decode_chunks(AVCodecContext *avctx,
return -1;
}
if (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) {
s->slice_count++;
break;
}
if(avctx->thread_count > 1){
int threshold= (s2->mb_height*s->slice_count + avctx->thread_count/2) / avctx->thread_count;
if(threshold <= mb_y){
@ -2508,3 +2525,20 @@ AVCodec mpeg_xvmc_decoder = {
};
#endif
#if CONFIG_MPEG_VDPAU_DECODER
AVCodec mpeg_vdpau_decoder = {
"mpegvideo_vdpau",
CODEC_TYPE_VIDEO,
CODEC_ID_MPEG2VIDEO,
sizeof(Mpeg1Context),
mpeg_decode_init,
NULL,
mpeg_decode_end,
mpeg_decode_frame,
CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
.long_name = NULL_IF_CONFIG_SMALL("MPEG-1/2 video (VDPAU acceleration)"),
};
#endif

1
libavcodec/vdpau.h
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@ -70,6 +70,7 @@ struct vdpau_render_state {
/** picture parameter information for all supported codecs */
union VdpPictureInfo {
VdpPictureInfoMPEG1Or2 mpeg;
VdpPictureInfoH264 h264;
} info;

4
libavcodec/vdpau_internal.h
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@ -29,6 +29,10 @@
void ff_vdpau_add_data_chunk(MpegEncContext *s, const uint8_t *buf,
int buf_size);
void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
int buf_size, int slice_count);
void ff_vdpau_h264_set_reference_frames(MpegEncContext *s);
void ff_vdpau_h264_picture_complete(MpegEncContext *s);

55
libavcodec/vdpauvideo.c
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@ -177,4 +177,59 @@ void ff_vdpau_h264_picture_complete(MpegEncContext *s)
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;
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;
}
/* @}*/

2
libavutil/avutil.h
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@ -122,6 +122,8 @@ enum PixelFormat {
PIX_FMT_YUVJ440P, ///< Planar YUV 4:4:0 full scale (jpeg)
PIX_FMT_YUVA420P, ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
PIX_FMT_VDPAU_H264,///< H264 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
PIX_FMT_VDPAU_MPEG1,///< MPEG1 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
PIX_FMT_VDPAU_MPEG2,///< MPEG2 HW decoding with VDPAU, data[0] contains a vdpau_render_state struct which contains the bitstream of the slices as well as various fields extracted from headers
PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
};