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format/imfdec: improve error handling when selecting tracks for playback

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Reviewed-by: Zane van Iperen <zane@zanevaniperen.com>
This commit is contained in:
Pierre-Anthony Lemieux 2022-09-19 08:26:18 -07:00 committed by Zane van Iperen
parent 0bc7ba4488
commit 0e402ebf48
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GPG Key ID: 68616B2D8AC4DCC5
1 changed files with 12 additions and 3 deletions
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15
libavformat/imfdec.c
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@ -686,8 +686,11 @@ static IMFVirtualTrackPlaybackCtx *get_next_track_with_minimum_timestamp(AVForma
{
IMFContext *c = s->priv_data;
IMFVirtualTrackPlaybackCtx *track;
AVRational minimum_timestamp = av_make_q(INT32_MAX, 1);
if (!c->track_count)
return NULL;
for (uint32_t i = c->track_count; i > 0; i--) {
av_log(s, AV_LOG_TRACE, "Compare track %d timestamp " AVRATIONAL_FORMAT
" to minimum " AVRATIONAL_FORMAT
@ -702,8 +705,6 @@ static IMFVirtualTrackPlaybackCtx *get_next_track_with_minimum_timestamp(AVForma
}
}
av_log(s, AV_LOG_DEBUG, "Found next track to read: %d (timestamp: %lf / %lf)\n",
track->index, av_q2d(track->current_timestamp), av_q2d(minimum_timestamp));
return track;
}
@ -766,6 +767,14 @@ static int imf_read_packet(AVFormatContext *s, AVPacket *pkt)
track = get_next_track_with_minimum_timestamp(s);
if (!track) {
av_log(s, AV_LOG_ERROR, "No track found for playback\n");
return AVERROR_INVALIDDATA;
}
av_log(s, AV_LOG_DEBUG, "Found track %d to read at timestamp %lf\n",
track->index, av_q2d(track->current_timestamp));
ret = get_resource_context_for_timestamp(s, track, &resource);
if (ret)
return ret;