On Wed, Jul 22, 2020 at 11:27:38PM +0800, lance.lmw...@gmail.com wrote:
> From: Limin Wang <lance.lmw...@gmail.com>
>
> copy the atsc ac3 audio in ts like below:
> ./ffmpeg -i atsc_audio.ts -c:v copy -c:a copy out.ts
> Stream #0:6[0x64](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo,
> fltp, 192 kb/s
>
> ./ffmpeg -i out.ts
> Before:
> Stream #0:1[0x101](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz,
> stereo, fltp, 192 kb/s
>
> After applied patch:
> Stream #0:1[0x101](eng): Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo,
> fltp, 192 kb/s
>
> Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> ---
> libavformat/mpegtsenc.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavformat/mpegtsenc.c b/libavformat/mpegtsenc.c
> index a5b45fb..f060ea6 100644
> --- a/libavformat/mpegtsenc.c
> +++ b/libavformat/mpegtsenc.c
> @@ -535,6 +535,11 @@ static int mpegts_write_pmt(AVFormatContext *s,
> MpegTSService *service)
> *q++=1; // 1 byte, all flags sets to 0
> *q++=0; // omit all fields...
> }
> + } else {
> + if (codec_id == AV_CODEC_ID_AC3)
> + put_registration_descriptor(&q, MKTAG('A', 'C', '-',
> '3'));
> + else if (codec_id == AV_CODEC_ID_EAC3)
> + put_registration_descriptor(&q, MKTAG('E', 'A', 'C',
> '3'));
> }
> if (codec_id == AV_CODEC_ID_S302M)
> put_registration_descriptor(&q, MKTAG('B', 'S', 'S', 'D'));
> --
> 1.8.3.1
>
ping the patch, as I'll submit patch to support atsc ac3 descriptor after that.
--
Thanks,
Limin Wang
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