From 3ad5d4df9ce794d3eeb0f526c5f3e446bf97c616 Mon Sep 17 00:00:00 2001 From: Calvin Walton Date: Fri, 30 Aug 2019 13:28:17 -0400 Subject: lavfi/concat: allow to support inputs with different frame rates Right now, the concat filter does not set the frame_rate value on any of the out links. As a result, the default ffmpeg behaviour kicks in - to copy the framerate from the first input to the outputs. If a later input is higher framerate, this results in dropped frames; if a later input is lower framerate it might cause judder. This patch checks if all of the video inputs have the same framerate, and if not it sets the out link to use '1/0' as the frame rate, the value meaning "unknown/vfr". A test is added to verify the VFR behaviour. The existing test for CFR behaviour passes unchanged. --- tests/fate/filter-video.mak | 4 +- tests/filtergraphs/concat-vfr | 8 ++ tests/ref/fate/filter-concat-vfr | 224 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 235 insertions(+), 1 deletion(-) create mode 100644 tests/filtergraphs/concat-vfr create mode 100644 tests/ref/fate/filter-concat-vfr (limited to 'tests') diff --git a/tests/fate/filter-video.mak b/tests/fate/filter-video.mak index 60c6be143b..0c6ee72432 100644 --- a/tests/fate/filter-video.mak +++ b/tests/fate/filter-video.mak @@ -424,9 +424,11 @@ FATE_FILTER_SAMPLES-$(call ALLYES, VMD_DEMUXER VMDVIDEO_DECODER FORMAT_FILTER PE fate-filter-gradfun-sample: tests/data/filtergraphs/gradfun fate-filter-gradfun-sample: CMD = framecrc -i $(TARGET_SAMPLES)/vmd/12.vmd -filter_script $(TARGET_PATH)/tests/data/filtergraphs/gradfun -an -frames:v 20 -FATE_FILTER-$(call ALLYES, TESTSRC_FILTER SINE_FILTER CONCAT_FILTER) += fate-filter-concat +FATE_FILTER-$(call ALLYES, TESTSRC_FILTER SINE_FILTER CONCAT_FILTER) += fate-filter-concat fate-filter-concat-vfr fate-filter-concat: tests/data/filtergraphs/concat fate-filter-concat: CMD = framecrc -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/concat +fate-filter-concat-vfr: tests/data/filtergraphs/concat-vfr +fate-filter-concat-vfr: CMD = framecrc -filter_complex_script $(TARGET_PATH)/tests/data/filtergraphs/concat-vfr FATE_FILTER-$(call ALLYES, TESTSRC2_FILTER FPS_FILTER MPDECIMATE_FILTER) += fate-filter-mpdecimate fate-filter-mpdecimate: CMD = framecrc -lavfi testsrc2=r=2:d=10,fps=3,mpdecimate -r 3 -pix_fmt yuv420p diff --git a/tests/filtergraphs/concat-vfr b/tests/filtergraphs/concat-vfr new file mode 100644 index 0000000000..e15cb96845 --- /dev/null +++ b/tests/filtergraphs/concat-vfr @@ -0,0 +1,8 @@ +testsrc=r=5:n=1:d=2 [v1]; +sine=440:b=2:d=1 [a1]; +testsrc=r=15:n=1:d=1 [v2]; +sine=622:b=2:d=2 [a2]; +testsrc=r=8:n=1:d=1 [v3]; +sine=880:b=2:d=1 [a3]; + +[v1][a1][v2][a2][v3][a3] concat=v=1:a=1:n=3 diff --git a/tests/ref/fate/filter-concat-vfr b/tests/ref/fate/filter-concat-vfr new file mode 100644 index 0000000000..0dece67a07 --- /dev/null +++ b/tests/ref/fate/filter-concat-vfr @@ -0,0 +1,224 @@ +#tb 0: 1/1000000 +#media_type 0: video +#codec_id 0: rawvideo +#dimensions 0: 320x240 +#sar 0: 1/1 +#tb 1: 1/44100 +#media_type 1: audio +#codec_id 1: pcm_s16le +#sample_rate 1: 44100 +#channel_layout 1: 4 +#channel_layout_name 1: mono +0, 0, 0, 0, 230400, 0x88c4d19a +1, 0, 0, 1024, 2048, 0xb3f10192 +1, 1024, 1024, 1024, 2048, 0xb340fe4e +1, 2048, 2048, 1024, 2048, 0x0a5f0111 +1, 3072, 3072, 1024, 2048, 0x51be06b8 +1, 4096, 4096, 1024, 2048, 0x71a1ffcb +1, 5120, 5120, 1024, 2048, 0x7f64f50f +1, 6144, 6144, 1024, 2048, 0x70a8fa17 +1, 7168, 7168, 1024, 2048, 0x0dad072a +1, 8192, 8192, 1024, 2048, 0x5e810c51 +0, 200000, 200000, 0, 230400, 0x0d77c977 +1, 9216, 9216, 1024, 2048, 0xbe5bf462 +1, 10240, 10240, 1024, 2048, 0xbcd9faeb +1, 11264, 11264, 1024, 2048, 0x0d5bfe9c 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