On Sat, Jun 25, 2016 at 11:36:05AM +0200, Paul B Mahol wrote:
> Hi,
>
> patch attached.
> From fbf2d600e048a417183ab32fdb2e7e2bcf238071 Mon Sep 17 00:00:00 2001
> From: Paul B Mahol <one...@gmail.com>
> Date: Sat, 25 Jun 2016 11:33:46 +0200
> Subject: [PATCH] avformat/mov: parse rtmd track timecode
>
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> libavformat/mov.c | 30 +++++++++++++++++++++++++++++-
> 1 file changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/mov.c b/libavformat/mov.c
> index d75605d..34ce246 100644
> --- a/libavformat/mov.c
> +++ b/libavformat/mov.c
> @@ -4674,6 +4674,31 @@ static int
> parse_timecode_in_framenum_format(AVFormatContext *s, AVStream *st,
> return 0;
> }
>
> +static int mov_read_rtmd_track(AVFormatContext *s, AVStream *st)
> +{
> + MOVStreamContext *sc = st->priv_data;
> + char buf[AV_TIMECODE_STR_SIZE];
> + int64_t cur_pos = avio_tell(sc->pb);
> + int dd, hh, mm, ss;
> +
> + if (!st->nb_index_entries)
> + return -1;
> +
> + avio_seek(sc->pb, st->index_entries->pos, SEEK_SET);
> + avio_skip(s->pb, 13);
> + dd = avio_r8(s->pb);
> + hh = avio_r8(s->pb);
> + mm = avio_r8(s->pb);
> + avio_skip(s->pb, 1);
isn't this the drop flag? if so you should probably honor it as as ';' in
the timecode string
> + ss = avio_r8(s->pb);
> + snprintf(buf, AV_TIMECODE_STR_SIZE, "%02d:%02d:%02d:%02d",
> + dd, hh, mm, ss);
> + av_dict_set(&st->metadata, "timecode", buf, 0);
> +
> + avio_seek(sc->pb, cur_pos, SEEK_SET);
> + return 0;
> +}
> +
> static int mov_read_timecode_track(AVFormatContext *s, AVStream *st)
> {
> MOVStreamContext *sc = st->priv_data;
> @@ -4952,8 +4977,11 @@ static int mov_read_header(AVFormatContext *s)
> if (mov->chapter_track > 0 && !mov->ignore_chapters)
> mov_read_chapters(s);
> for (i = 0; i < s->nb_streams; i++)
> - if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd"))
> + if (s->streams[i]->codecpar->codec_tag == AV_RL32("tmcd")) {
> mov_read_timecode_track(s, s->streams[i]);
> + } else if (s->streams[i]->codecpar->codec_tag ==
> AV_RL32("rtmd")) {
> + mov_read_rtmd_track(s, s->streams[i]);
> + }
> }
>
> /* copy timecode metadata from tmcd tracks to the related video streams
> */
--
Clément B.
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