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lavf/utils.c: Don't compute start_time from DISCARD packets for video. 

Signed-off-by: Sasi Inguva <isasi@isasi.mtv.corp.google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Sasi Inguva 2018-03-21 13:36:38 -07:00 committed by Michael Niedermayer
parent dc99ee6b08
commit 829aebf95d
4 changed files with 39 additions and 2 deletions
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4
libavformat/utils.c
View File

@ -1158,7 +1158,9 @@ static void update_initial_timestamps(AVFormatContext *s, int stream_index,
}
if (st->start_time == AV_NOPTS_VALUE) {
st->start_time = pts;
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO || !(pkt->flags & AV_PKT_FLAG_DISCARD)) {
st->start_time = pts;
}
if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && st->codecpar->sample_rate)
st->start_time += av_rescale_q(st->skip_samples, (AVRational){1, st->codecpar->sample_rate}, st->time_base);
}

10
tests/fate/mov.mak
View File

@ -13,8 +13,10 @@ FATE_MOV = fate-mov-3elist \
fate-mov-elst-ends-betn-b-and-i \
fate-mov-frag-overlap \
fate-mov-bbi-elst-starts-b \
fate-mov-neg-firstpts-discard-frames \
FATE_MOV_FFPROBE = fate-mov-aac-2048-priming \
FATE_MOV_FFPROBE = fate-mov-neg-firstpts-discard \
fate-mov-aac-2048-priming \
fate-mov-zombie \
fate-mov-init-nonkeyframe \
fate-mov-displaymatrix \
@ -72,6 +74,12 @@ fate-mov-frag-overlap: CMD = framemd5 -i $(TARGET_SAMPLES)/mov/frag_overlap.mp4
# GOP structure : B B I in presentation order.
fate-mov-bbi-elst-starts-b: CMD = framemd5 -flags +bitexact -acodec aac_fixed -i $(TARGET_SAMPLES)/h264/twofields_packet.mp4
# Makes sure that the stream start_time is not negative when the first packet is a DISCARD packet with negative timestamp.
fate-mov-neg-firstpts-discard: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_entries stream=start_time -bitexact $(TARGET_SAMPLES)/mov/mov_neg_first_pts_discard.mov
# Makes sure that expected frames are generated for mov_neg_first_pts_discard.mov with -vsync 1
fate-mov-neg-firstpts-discard-frames: CMD = framemd5 -flags +bitexact -i $(TARGET_SAMPLES)/mov/mov_neg_first_pts_discard.mov -vsync 1
fate-mov-aac-2048-priming: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_packets -print_format compact $(TARGET_SAMPLES)/mov/aac-2048-priming.mov
fate-mov-zombie: CMD = run ffprobe$(PROGSSUF)$(EXESUF) -show_streams -show_packets -show_frames -bitexact -print_format compact $(TARGET_SAMPLES)/mov/white_zombie_scrunch-part.mov

3
tests/ref/fate/mov-neg-firstpts-discard Normal file
View File

@ -0,0 +1,3 @@
[STREAM]
start_time=N/A
[/STREAM]

24
tests/ref/fate/mov-neg-firstpts-discard-frames Normal file
View File

@ -0,0 +1,24 @@
#format: frame checksums
#version: 2
#hash: MD5
#tb 0: 1/30
#media_type 0: video
#codec_id 0: rawvideo
#dimensions 0: 320x240
#sar 0: 1/1
#stream#, dts, pts, duration, size, hash
0, 0, 0, 1, 115200, 1e55263b359b4c99c3463655a1120f11
0, 1, 1, 1, 115200, ce33efea81064e7c23deb57dc4c21995
0, 2, 2, 1, 115200, 42234f25d6191ab13c3676a7937c921b
0, 3, 3, 1, 115200, eab2ccb227c66cba4c9feb8cdbf28ef8
0, 4, 4, 1, 115200, c8816e0b151b2c892163e35086918520
0, 5, 5, 1, 115200, c633f5604c8651165d551ee88fb4cd92
0, 6, 6, 1, 115200, 5f3f8530d720fef3ac4c937e7f488ea7
0, 7, 7, 1, 115200, be24a583909ca92008b642f39be02685
0, 8, 8, 1, 115200, 83872a6e5c3369fe76f684de31bd9a36
0, 9, 9, 1, 115200, 4629d6eb656883b337e8e0b381f2db8d
0, 10, 10, 1, 115200, f6bec55bc026440d23a44b948900e785
0, 11, 11, 1, 115200, 7e12e8113916305c79e5d08354acc9ae
0, 12, 12, 1, 115200, d315c0093536642d340ea50de3b2bfbb
0, 13, 13, 1, 115200, 3d12b24aaed72bfada4a1a3e5e02945a
0, 14, 14, 1, 115200, 070d6b8935c11304d8f9520c4401a130