movenc: Add a unit test for signaling of the track start times

Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 51 insertions, 0 deletions

diff --git a/libavformat/movenc-test.c b/libavformat/movenc-test.c
index a549854fc1..0a1384e281 100644
--- a/libavformat/movenc-test.c
+++ b/libavformat/movenc-test.c
@@ -280,6 +280,23 @@ static void skip_gops(int n)
     skip_write = 0;
 }
 
+static void signal_init_ts(void)
+{
+    AVPacket pkt;
+    av_init_packet(&pkt);
+    pkt.size = 0;
+    pkt.data = NULL;
+
+    pkt.stream_index = 0;
+    pkt.dts = video_dts;
+    pkt.pts = 0;
+    av_write_frame(ctx, &pkt);
+
+    pkt.stream_index = 1;
+    pkt.dts = pkt.pts = audio_dts;
+    av_write_frame(ctx, &pkt);
+}
+
 static void finish(void)
 {
     av_write_trailer(ctx);
@@ -572,6 +589,40 @@ int main(int argc, char **argv)
     finish();
 
 
+    // Test discontinously written fragments with b-frames and audio preroll,
+    // properly signaled.
+    av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash", 0);
+    init(1, 1);
+    mux_gops(1);
+    init_out("delay-moov-elst-signal-init");
+    av_write_frame(ctx, NULL); // Output the moov
+    close_out();
+    memcpy(header, hash, HASH_SIZE);
+    av_write_frame(ctx, NULL); // Output the first fragment
+    init_out("delay-moov-elst-signal-second-frag");
+    mux_gops(1);
+    av_write_frame(ctx, NULL); // Output the second fragment
+    close_out();
+    memcpy(content, hash, HASH_SIZE);
+    finish();
+
+    av_dict_set(&opts, "movflags", "frag_custom+delay_moov+dash+frag_discont", 0);
+    av_dict_set(&opts, "fragment_index", "2", 0);
+    init(1, 1);
+    signal_init_ts();
+    skip_gops(1);
+    mux_gops(1); // Write the second fragment
+    init_out("delay-moov-elst-signal-init-discont");
+    av_write_frame(ctx, NULL); // Output the moov
+    close_out();
+    check(!memcmp(hash, header, HASH_SIZE), "discontinuously written header differs");
+    init_out("delay-moov-elst-signal-second-frag-discont");
+    av_write_frame(ctx, NULL); // Output the second fragment
+    close_out();
+    check(!memcmp(hash, content, HASH_SIZE), "discontinuously written fragment differs");
+    finish();
+
+
     // Test VFR content, with sidx atoms (which declare the pts duration
     // of a fragment, forcing overriding the start pts of the next one).
     // Here, the fragment duration in pts is significantly different from