Re: [FFmpeg-devel] There may be a bug for .mp4 reader.
2019-04-01 23:57 GMT+02:00, Hendrik Leppkes : > Bug reports should go on Trac or the API user mailing list. The ffmpeg-user mailing list is actually the preferred place. Carl Eugen ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] There may be a bug for .mp4 reader.
On 04/01/2019 05:57 PM, Hendrik Leppkes wrote: > On Mon, Apr 1, 2019 at 7:21 PM Yufei He wrote: >> Hi >> >> There may be a bug for .mp4 reader. >> >> On decoding some ntsc mp4 files with my h.264 codec, from actvx I received, >> >> avctx->framerate.den is 100 >> >> avctx->framerate.num is 2997 >> >> avctx->pkt_timebase.num is 1 >> avctx->pkt_timebase.den is 2997 >> >> Duration of every packet I received from ff_decode_get_packet(avctx, &pkt) >> is 100, which means it's a encoded frame. But actually, it's a encoded >> field, it's duration should be 50. >> > Bug reports should go on Trac or the API user mailing list. > > - Hendrik OK. Thanks. Yufei. > ___ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] There may be a bug for .mp4 reader.
On Mon, Apr 1, 2019 at 7:21 PM Yufei He wrote: > > Hi > > There may be a bug for .mp4 reader. > > On decoding some ntsc mp4 files with my h.264 codec, from actvx I received, > > avctx->framerate.den is 100 > > avctx->framerate.num is 2997 > > avctx->pkt_timebase.num is 1 > avctx->pkt_timebase.den is 2997 > > Duration of every packet I received from ff_decode_get_packet(avctx, &pkt) is > 100, which means it's a encoded frame. But actually, it's a encoded field, > it's duration should be 50. > Bug reports should go on Trac or the API user mailing list. - Hendrik ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] There may be a bug for .mp4 reader.
On 04/01/2019 01:42 PM, Devin Heitmueller wrote: > Hello Yufei, > >> On Apr 1, 2019, at 1:21 PM, Yufei He wrote: >> >> Hi >> >> There may be a bug for .mp4 reader. >> >> On decoding some ntsc mp4 files with my h.264 codec, from actvx I received, >> >> avctx->framerate.den is 100 >> >> avctx->framerate.num is 2997 >> >> avctx->pkt_timebase.num is 1 >> avctx->pkt_timebase.den is 2997 >> >> Duration of every packet I received from ff_decode_get_packet(avctx, &pkt) >> is 100, which means it's a encoded frame. But actually, it's a encoded >> field, it's duration should be 50. > Libavcodec doesn’t have any support for delivering individual fields. > Decoders are expected to reassemble fields into frames before providing them > back to callers. > > Presumably this is some sort of PAFF encoded stream? Does it decode properly > when using the software h.264 decoder? > > Devin Hi Devin The data decoded is in frames, my problem is the source compressed data: it could be a field or a frame depending on files, every packet for compressed data has duration and it should be accurate, I use it directly instead of parsing it again. it seems it's not correct for some .mp4 files. and I find it's not correct for xavc mxf long gop files today, though xavc intra files are good. Yufei. > --- > Devin Heitmueller - LTN Global Communications > dheitmuel...@ltnglobal.com > > > > > > ___ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-devel] There may be a bug for .mp4 reader.
Hello Yufei, > On Apr 1, 2019, at 1:21 PM, Yufei He wrote: > > Hi > > There may be a bug for .mp4 reader. > > On decoding some ntsc mp4 files with my h.264 codec, from actvx I received, > > avctx->framerate.den is 100 > > avctx->framerate.num is 2997 > > avctx->pkt_timebase.num is 1 > avctx->pkt_timebase.den is 2997 > > Duration of every packet I received from ff_decode_get_packet(avctx, &pkt) is > 100, which means it's a encoded frame. But actually, it's a encoded field, > it's duration should be 50. Libavcodec doesn’t have any support for delivering individual fields. Decoders are expected to reassemble fields into frames before providing them back to callers. Presumably this is some sort of PAFF encoded stream? Does it decode properly when using the software h.264 decoder? Devin --- Devin Heitmueller - LTN Global Communications dheitmuel...@ltnglobal.com ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-devel] There may be a bug for .mp4 reader.
Hi There may be a bug for .mp4 reader. On decoding some ntsc mp4 files with my h.264 codec, from actvx I received, avctx->framerate.den is 100 avctx->framerate.num is 2997 avctx->pkt_timebase.num is 1 avctx->pkt_timebase.den is 2997 Duration of every packet I received from ff_decode_get_packet(avctx, &pkt) is 100, which means it's a encoded frame. But actually, it's a encoded field, it's duration should be 50. Regards. Yufei ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
