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avformat/rawenc: Store sample number for ADX

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Fixes Ticket4540

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-06-21 00:32:09 +02:00
parent 95ee0fbacf
commit 6c8a05268c
3 changed files with 22 additions and 2 deletions
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20
libavformat/rawenc.c
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@ -56,6 +56,25 @@ AVOutputFormat ff_ac3_muxer = {
#endif
#if CONFIG_ADX_MUXER
static int adx_write_trailer(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVCodecContext *avctx = s->streams[0]->codec;
if (pb->seekable) {
int64_t file_size = avio_tell(pb);
uint64_t sample_count = (file_size - 36) / avctx->channels / 18 * 32;
if (sample_count <= UINT32_MAX) {
avio_seek(pb, 12, SEEK_SET);
avio_wb32(pb, sample_count);
avio_seek(pb, file_size, SEEK_SET);
}
}
return 0;
}
AVOutputFormat ff_adx_muxer = {
.name = "adx",
.long_name = NULL_IF_CONFIG_SMALL("CRI ADX"),
@ -64,6 +83,7 @@ AVOutputFormat ff_adx_muxer = {
.video_codec = AV_CODEC_ID_NONE,
.write_header = force_one_stream,
.write_packet = ff_raw_write_packet,
.write_trailer = adx_write_trailer,
.flags = AVFMT_NOTIMESTAMPS,
};
#endif

2
tests/ref/acodec/adpcm-adx
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@ -1,4 +1,4 @@
d7ec7d52a2f5c91464812d031b07cc1d *tests/data/fate/acodec-adpcm-adx.adx
6bf1a8e5ec9cc958a31cb2b1b66bfc75 *tests/data/fate/acodec-adpcm-adx.adx
297720 tests/data/fate/acodec-adpcm-adx.adx
5b5a436ec9d528d6eb0bebaf667521b0 *tests/data/fate/acodec-adpcm-adx.out.wav
stddev: 2549.93 PSNR: 28.20 MAXDIFF:57514 bytes: 1058400/ 1058432

2
tests/ref/acodec/adpcm-adx-trellis
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@ -1,4 +1,4 @@
d7ec7d52a2f5c91464812d031b07cc1d *tests/data/fate/acodec-adpcm-adx-trellis.adx
6bf1a8e5ec9cc958a31cb2b1b66bfc75 *tests/data/fate/acodec-adpcm-adx-trellis.adx
297720 tests/data/fate/acodec-adpcm-adx-trellis.adx
5b5a436ec9d528d6eb0bebaf667521b0 *tests/data/fate/acodec-adpcm-adx-trellis.out.wav
stddev: 2549.93 PSNR: 28.20 MAXDIFF:57514 bytes: 1058400/ 1058432