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lavf: use the new bitstream filter for extracting extradata 

This also fixes a minor bug introduced in the codecpar conversion, where
the termination condition for extracting the extradata does not match
the actual extradata setting code. As a result, the packet durations
made up by lavf go back to their values before the codecpar conversion.
That is of little consequence since that code should eventually be
dropped completely.
This commit is contained in:
Anton Khirnov 2016-09-22 15:24:34 +02:00
parent 89b35a139e
commit 8e2ea69135
4 changed files with 158 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
libavformat/internal.h
View File

@ -113,6 +113,15 @@ struct AVStreamInternal {
enum AVCodecID orig_codec_id;
/* the context for extracting extradata in find_stream_info()
* inited=1/bsf=NULL signals that extracting is not possible (codec not
* supported) */
struct {
AVBSFContext *bsf;
AVPacket *pkt;
int inited;
} extract_extradata;
#if FF_API_LAVF_AVCTX
// whether the deprecated stream codec context needs
// to be filled from the codec parameters

123
libavformat/utils.c
View File

@ -2089,6 +2089,104 @@ static int get_std_framerate(int i)
return ((const int[]) { 24, 30, 60, 12, 15 })[i - 60 * 12] * 1000 * 12;
}
static int extract_extradata_init(AVStream *st)
{
AVStreamInternal *i = st->internal;
const AVBitStreamFilter *f;
int ret;
f = av_bsf_get_by_name("extract_extradata");
if (!f)
goto finish;
i->extract_extradata.pkt = av_packet_alloc();
if (!i->extract_extradata.pkt)
return AVERROR(ENOMEM);
ret = av_bsf_alloc(f, &i->extract_extradata.bsf);
if (ret < 0)
goto fail;
ret = avcodec_parameters_copy(i->extract_extradata.bsf->par_in,
st->codecpar);
if (ret < 0)
goto fail;
i->extract_extradata.bsf->time_base_in = st->time_base;
/* if init fails here, we assume extracting extradata is just not
* supported for this codec, so we return success */
ret = av_bsf_init(i->extract_extradata.bsf);
if (ret < 0) {
av_bsf_free(&i->extract_extradata.bsf);
ret = 0;
}
finish:
i->extract_extradata.inited = 1;
return 0;
fail:
av_bsf_free(&i->extract_extradata.bsf);
av_packet_free(&i->extract_extradata.pkt);
return ret;
}
static int extract_extradata(AVStream *st, AVPacket *pkt)
{
AVStreamInternal *i = st->internal;
AVPacket *pkt_ref;
int ret;
if (!i->extract_extradata.inited) {
ret = extract_extradata_init(st);
if (ret < 0)
return ret;
}
if (i->extract_extradata.inited && !i->extract_extradata.bsf)
return 0;
pkt_ref = i->extract_extradata.pkt;
ret = av_packet_ref(pkt_ref, pkt);
if (ret < 0)
return ret;
ret = av_bsf_send_packet(i->extract_extradata.bsf, pkt_ref);
if (ret < 0) {
av_packet_unref(pkt_ref);
return ret;
}
while (ret >= 0 && !i->avctx->extradata) {
int extradata_size;
uint8_t *extradata;
ret = av_bsf_receive_packet(i->extract_extradata.bsf, pkt_ref);
if (ret < 0) {
if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
return ret;
continue;
}
extradata = av_packet_get_side_data(pkt_ref, AV_PKT_DATA_NEW_EXTRADATA,
&extradata_size);
if (extradata) {
i->avctx->extradata = av_mallocz(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
if (!i->avctx->extradata) {
av_packet_unref(pkt_ref);
return AVERROR(ENOMEM);
}
memcpy(i->avctx->extradata, extradata, extradata_size);
i->avctx->extradata_size = extradata_size;
}
av_packet_unref(pkt_ref);
}
return 0;
}
int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
{
int i, count, ret, read_size, j;
@ -2194,8 +2292,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
st->codec_info_nb_frames < fps_analyze_framecount &&
st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
break;
if (st->parser && st->parser->parser->split &&
!st->codecpar->extradata)
if (!st->codecpar->extradata &&
!st->internal->avctx->extradata &&
(!st->internal->extract_extradata.inited ||
st->internal->extract_extradata.bsf))
break;
if (st->first_dts == AV_NOPTS_VALUE &&
st->codec_info_nb_frames < ic->max_ts_probe &&
@ -2331,17 +2431,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
break;
}
}
if (st->parser && st->parser->parser->split && !avctx->extradata) {
int i = st->parser->parser->split(avctx, pkt->data, pkt->size);
if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
avctx->extradata_size = i;
avctx->extradata = av_mallocz(avctx->extradata_size +
AV_INPUT_BUFFER_PADDING_SIZE);
if (!avctx->extradata)
return AVERROR(ENOMEM);
memcpy(avctx->extradata, pkt->data,
avctx->extradata_size);
}
if (!st->internal->avctx->extradata) {
ret = extract_extradata(st, pkt);
if (ret < 0)
goto find_stream_info_err;
}
/* If still no information, we try to open the codec and to
@ -2468,6 +2561,8 @@ FF_ENABLE_DEPRECATION_WARNINGS
find_stream_info_err:
for (i = 0; i < ic->nb_streams; i++) {
av_freep(&ic->streams[i]->info);
av_bsf_free(&ic->streams[i]->internal->extract_extradata.bsf);
av_packet_free(&ic->streams[i]->internal->extract_extradata.pkt);
}
return ret;
}
@ -2575,6 +2670,8 @@ static void free_stream(AVStream **pst)
if (st->internal) {
avcodec_free_context(&st->internal->avctx);
av_bsf_free(&st->internal->extract_extradata.bsf);
av_packet_free(&st->internal->extract_extradata.pkt);
}
av_freep(&st->internal);

10
tests/ref/fate/iv8-demux
View File

@ -19,8 +19,8 @@
0, 57600, 61200, 0, 20874, 0xed0b91ec
0, 61200, 64799, 0, 20877, 0xe1623e01
0, 64799, 68399, 0, 20933, 0x19906564
0, 68399, 72000, 0, 20891, 0x3d064fd3
0, 72000, 75600, 0, 20834, 0xcb774dbc
0, 75600, 79200, 0, 20870, 0xbc536589
0, 79200, 82800, 0, 21421, 0xc99a68e4
0, 82800, 86400, 0, 12869, 0x5684e304
0, 68399, 72000, 3600, 20891, 0x3d064fd3
0, 72000, 75600, 3600, 20834, 0xcb774dbc
0, 75600, 79200, 3600, 20870, 0xbc536589
0, 79200, 82800, 3600, 21421, 0xc99a68e4
0, 82800, 86400, 3600, 12869, 0x5684e304

68
tests/ref/fate/wtv-demux
View File

@ -59,83 +59,83 @@
0, 11486331, 11486331, 400000, 6156, 0xe168394b
1, 11519998, 11519998, 240000, 576, 0x1fea1448
1, 11759998, 11759998, 240000, 576, 0x55840a01
0, 11886331, 13086442, 400000, 23364, 0x53164f1e
0, 11886331, 13086442, 449438, 23364, 0x53164f1e
1, 11999998, 11999998, 240000, 576, 0x6c9c24ce
1, 12239998, 12239998, 240000, 576, 0x955f1e97
0, 12286442, 12286442, 400000, 6708, 0x89877269
0, 12286442, 12286442, 449438, 6708, 0x89877269
1, 12479998, 12479998, 240000, 576, 0x2827134f
0, 12686442, 12686442, 400000, 6908, 0x8d62a249
0, 12686442, 12686442, 449438, 6908, 0x8d62a249
1, 12719998, 12719998, 240000, 576, 0x34a01c29
1, 12959998, 12959998, 240000, 576, 0x7d351e52
0, 13086442, 14286442, 400000, 38156, 0xec41f682
0, 13086442, 14286442, 449438, 38156, 0xec41f682
1, 13199998, 13199998, 240000, 576, 0x00c91d9e
1, 13439998, 13439998, 240000, 576, 0x57ea1a97
0, 13486331, 13486331, 400000, 5764, 0xcc04534b
0, 13486331, 13486331, 449438, 5764, 0xcc04534b
1, 13679998, 13679998, 240000, 576, 0xef3a1c74
0, 13886331, 13886331, 400000, 5388, 0xb8a1c3c5
0, 13886331, 13886331, 449438, 5388, 0xb8a1c3c5
1, 13919998, 13919998, 240000, 576, 0x11fc217d
1, 14159998, 14159998, 240000, 576, 0x59ce20e5
0, 14286442, 15486331, 400000, 16764, 0x59460d96
0, 14286442, 15486331, 449438, 16764, 0x59460d96
1, 14399998, 14399998, 240000, 576, 0xaafc1dbf
1, 14639998, 14639998, 240000, 576, 0xdd941609
0, 14686331, 14686331, 400000, 5548, 0x5c91e93d
0, 14686331, 14686331, 449438, 5548, 0x5c91e93d
1, 14879998, 14879998, 240000, 576, 0x900420b0
0, 15086331, 15086331, 400000, 5652, 0x5e321aed
0, 15086331, 15086331, 449438, 5652, 0x5e321aed
1, 15119998, 15119998, 240000, 576, 0x5f4f1aa1
1, 15359998, 15359998, 240000, 576, 0x7d7e18de
0, 15486331, 16686331, 400000, 15564, 0xefdf5080
0, 15486331, 16686331, 449438, 15564, 0xefdf5080
1, 15599998, 15599998, 240000, 576, 0x986c0d9d
1, 15839998, 15839998, 240000, 576, 0xcb4c21c0
0, 15886331, 15886331, 400000, 6492, 0xd1d5c5f8
0, 15886331, 15886331, 449438, 6492, 0xd1d5c5f8
1, 16079998, 16079998, 240000, 576, 0xbcfb1e8b
0, 16286331, 16286331, 400000, 5604, 0xf9472b44
0, 16286331, 16286331, 449438, 5604, 0xf9472b44
1, 16319998, 16319998, 240000, 576, 0xcb541b4c
1, 16559998, 16559998, 240000, 576, 0x980426e9
0, 16686331, 17886331, 400000, 17924, 0x45815b7b
0, 16686331, 17886331, 449438, 17924, 0x45815b7b
1, 16799998, 16799998, 240000, 576, 0x09d00aa0
1, 17039998, 17039998, 240000, 576, 0xad591374
0, 17086442, 17086442, 400000, 5020, 0x3cc5e554
0, 17086442, 17086442, 449438, 5020, 0x3cc5e554
1, 17279998, 17279998, 240000, 576, 0x97bf1461
0, 17486442, 17486442, 400000, 5276, 0xa0554c12
0, 17486442, 17486442, 449438, 5276, 0xa0554c12
1, 17519998, 17519998, 240000, 576, 0xdc871cc4
1, 17759998, 17759998, 240000, 576, 0x56781896
0, 17886331, 19086442, 400000, 31460, 0x5765eb5f
0, 17886331, 19086442, 449438, 31460, 0x5765eb5f
1, 17999998, 17999998, 240000, 576, 0xc77714e3
1, 18239998, 18239998, 240000, 576, 0x280e18d4
0, 18286331, 18286331, 400000, 4972, 0x91adbab7
0, 18286331, 18286331, 449438, 4972, 0x91adbab7
1, 18479998, 18479998, 240000, 576, 0xbc0d2302
0, 18686442, 18686442, 400000, 5580, 0xfea707cb
0, 18686442, 18686442, 449438, 5580, 0xfea707cb
1, 18719998, 18719998, 240000, 576, 0x79191384
1, 18959998, 18959998, 240000, 576, 0x65481c97
0, 19086442, 20286331, 400000, 17412, 0x0afe4d27
0, 19086442, 20286331, 449438, 17412, 0x0afe4d27
1, 19199998, 19199998, 240000, 576, 0xc94d227d
1, 19439998, 19439998, 240000, 576, 0xa68a1f14
0, 19486442, 19486442, 400000, 5236, 0x03f55309
0, 19486442, 19486442, 449438, 5236, 0x03f55309
1, 19679998, 19679998, 240000, 576, 0x6af11a5c
0, 19886331, 19886331, 400000, 4924, 0x558e753c
0, 19886331, 19886331, 449438, 4924, 0x558e753c
1, 19919998, 19919998, 240000, 576, 0x4d1019ef
1, 20159998, 20159998, 240000, 576, 0x3b1b17b5
0, 20286331, 21486331, 400000, 15396, 0xf145d121
0, 20286331, 21486331, 449438, 15396, 0xf145d121
1, 20399998, 20399998, 240000, 576, 0xcdd8159f
1, 20639998, 20639998, 240000, 576, 0x97cd1d06
0, 20686331, 20686331, 400000, 4708, 0x43066a92
0, 20686331, 20686331, 449438, 4708, 0x43066a92
1, 20879998, 20879998, 240000, 576, 0x5d1b1123
0, 21086442, 21086442, 400000, 4332, 0x9e22bcba
0, 21086442, 21086442, 449438, 4332, 0x9e22bcba
1, 21119998, 21119998, 240000, 576, 0x888d0cb0
1, 21359998, 21359998, 240000, 576, 0x556e1dad
0, 21486331, 22686442, 400000, 12876, 0x46ff9ef4
0, 21486331, 22686442, 449438, 12876, 0x46ff9ef4
1, 21599998, 21599998, 240000, 576, 0xf7af0bce
1, 21839998, 21839998, 240000, 576, 0xb5da160a
0, 21886442, 21886442, 400000, 5940, 0x27cba62e
0, 21886442, 21886442, 449438, 5940, 0x27cba62e
1, 22079998, 22079998, 240000, 576, 0x4a8d0e98
0, 22286442, 22286442, 400000, 6124, 0x6bab0a6d
0, 22286442, 22286442, 449438, 6124, 0x6bab0a6d
1, 22319998, 22319998, 240000, 576, 0x183b1c7e
1, 22559998, 22559998, 240000, 576, 0xc47120e6
0, 22686442, 23886442, 400000, 36428, 0x942f9648
0, 22686442, 23886442, 449438, 36428, 0x942f9648
1, 22799998, 22799998, 240000, 576, 0xb1f31346
0, 23086331, 23086331, 400000, 6660, 0x545a0db7
0, 23486331, 23486331, 400000, 6780, 0x2d1d4189
0, 23886442, 25086331, 400000, 16460, 0x7c3b3ca4
0, 24286442, 24286442, 400000, 6724, 0x8538cc6f
0, 24686442, 24686442, 400000, 7068, 0x69574fd0
0, 25086331, 26286331, 400000, 19552, 0xf230e854
0, 23086331, 23086331, 449438, 6660, 0x545a0db7
0, 23486331, 23486331, 449438, 6780, 0x2d1d4189
0, 23886442, 25086331, 449438, 16460, 0x7c3b3ca4
0, 24286442, 24286442, 449438, 6724, 0x8538cc6f
0, 24686442, 24686442, 449438, 7068, 0x69574fd0
0, 25086331, 26286331, 449438, 19552, 0xf230e854