[SCM] libav/experimental: Add VDPAU hardware accelerated decoding for MPEG-4 ASP which can be used by video players.
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 16:54:22 UTC 2013
The following commit has been merged in the experimental branch:
commit 70e0c871eb2546355063b455b2db4c8247c94a5d
Author: NVIDIA Corporation <>
Date: Tue Nov 10 18:52:39 2009 +0000
Add VDPAU hardware accelerated decoding for MPEG-4 ASP which can be used
by video players.
Original patch by NVIDIA corporation.
Originally committed as revision 20502 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/configure b/configure
index d49cf57..613edad 100755
--- a/configure
+++ b/configure
@@ -1131,6 +1131,8 @@ mpeg2_vaapi_hwaccel_deps="va_va_h"
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
mpeg4_vaapi_hwaccel_deps="va_va_h"
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
+mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
+mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
mpeg_xvmc_decoder_select="mpegvideo_decoder"
msmpeg4v1_encoder_select="h263_encoder"
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 482cbd6..32c86cd 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -123,6 +123,7 @@ void avcodec_register_all(void)
REGISTER_ENCDEC (MPEG1VIDEO, mpeg1video);
REGISTER_ENCDEC (MPEG2VIDEO, mpeg2video);
REGISTER_ENCDEC (MPEG4, mpeg4);
+ REGISTER_DECODER (MPEG4_VDPAU, mpeg4_vdpau);
REGISTER_DECODER (MPEGVIDEO, mpegvideo);
REGISTER_DECODER (MPEG_VDPAU, mpeg_vdpau);
REGISTER_DECODER (MPEG1_VDPAU, mpeg1_vdpau);
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 224668d..c158436 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -32,6 +32,7 @@
#include "h263_parser.h"
#include "mpeg4video_parser.h"
#include "msmpeg4.h"
+#include "vdpau_internal.h"
//#define DEBUG
//#define PRINT_FRAME_TIME
@@ -621,6 +622,11 @@ retry:
if(MPV_frame_start(s, avctx) < 0)
return -1;
+ if (CONFIG_MPEG4_VDPAU_DECODER && (s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) {
+ ff_vdpau_mpeg4_decode_picture(s, buf, buf_size);
+ goto frame_end;
+ }
+
if (avctx->hwaccel) {
if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
return -1;
@@ -695,6 +701,7 @@ retry:
intrax8_decoded:
ff_er_frame_end(s);
+frame_end:
if (avctx->hwaccel) {
if (avctx->hwaccel->end_frame(avctx) < 0)
return -1;
@@ -835,3 +842,19 @@ AVCodec flv_decoder = {
.long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
.pix_fmts= ff_pixfmt_list_420,
};
+
+#if CONFIG_MPEG4_VDPAU_DECODER
+AVCodec mpeg4_vdpau_decoder = {
+ "mpeg4_vdpau",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_MPEG4,
+ sizeof(MpegEncContext),
+ ff_h263_decode_init,
+ NULL,
+ ff_h263_decode_end,
+ ff_h263_decode_frame,
+ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
+ .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 (VDPAU)"),
+ .pix_fmts= (const enum PixelFormat[]){PIX_FMT_VDPAU_MPEG4, PIX_FMT_NONE},
+};
+#endif
diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 9826a6a..a5fcb53 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -376,6 +376,11 @@ static const PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
.is_hwaccel = 1,
.x_chroma_shift = 1, .y_chroma_shift = 1,
},
+ [PIX_FMT_VDPAU_MPEG4] = {
+ .name = "vdpau_mpeg4",
+ .is_hwaccel = 1,
+ .x_chroma_shift = 1, .y_chroma_shift = 1,
+ },
[PIX_FMT_UYYVYY411] = {
.name = "uyyvyy411",
.nb_channels = 1,
diff --git a/libavcodec/vdpau.c b/libavcodec/vdpau.c
index 4a7c86c..7cc8ad1 100644
--- a/libavcodec/vdpau.c
+++ b/libavcodec/vdpau.c
@@ -305,4 +305,54 @@ void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
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.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;
+}
+
/* @}*/
diff --git a/libavcodec/vdpau.h b/libavcodec/vdpau.h
index 32d0c67..eaa917d 100644
--- a/libavcodec/vdpau.h
+++ b/libavcodec/vdpau.h
@@ -73,6 +73,7 @@ struct vdpau_render_state {
VdpPictureInfoH264 h264;
VdpPictureInfoMPEG1Or2 mpeg;
VdpPictureInfoVC1 vc1;
+ VdpPictureInfoMPEG4Part2 mpeg4;
} info;
/** Describe size/location of the compressed video data.
diff --git a/libavcodec/vdpau_internal.h b/libavcodec/vdpau_internal.h
index ce0e00a..ce8a426 100644
--- a/libavcodec/vdpau_internal.h
+++ b/libavcodec/vdpau_internal.h
@@ -39,4 +39,7 @@ void ff_vdpau_h264_picture_complete(MpegEncContext *s);
void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
int buf_size);
+void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
+ int buf_size);
+
#endif /* AVCODEC_VDPAU_INTERNAL_H */
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 0b15238..ddd17fb 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -123,6 +123,7 @@ enum PixelFormat {
PIX_FMT_YUV422P16BE, ///< planar YUV 4:2:2, 32bpp, (1 Cr & Cb sample per 2x1 Y samples), big-endian
PIX_FMT_YUV444P16LE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), little-endian
PIX_FMT_YUV444P16BE, ///< planar YUV 4:4:4, 48bpp, (1 Cr & Cb sample per 1x1 Y samples), big-endian
+ PIX_FMT_VDPAU_MPEG4, ///< MPEG4 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
};
--
Libav/FFmpeg packaging
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