lgtm, will apply On 20/9/22 01:26, [email protected] wrote:
From: Pierre-Anthony Lemieux <[email protected]>--- libavformat/imfdec.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/libavformat/imfdec.c b/libavformat/imfdec.c index 5bbe7a53f8..9ba8b6de8b 100644 --- a/libavformat/imfdec.c +++ b/libavformat/imfdec.c @@ -681,8 +681,11 @@ 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 @@ -697,8 +700,6 @@ 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; }@@ -761,6 +762,14 @@ 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;
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