[FFmpeg-trac] #8480(undetermined:new): tpad filter doesn't work with -r on input

FFmpeg trac at avcodec.org
Fri Jan 17 20:53:50 EET 2020


#8480: tpad filter doesn't work with -r on input
----------------------------------------+----------------------------------
             Reporter:  occvtech        |                     Type:  defect
               Status:  new             |                 Priority:  normal
            Component:  undetermined    |                  Version:  4.2
             Keywords:  tpad framerate  |               Blocked By:
             Blocking:                  |  Reproduced by developer:  0
Analyzed by developer:  0               |
----------------------------------------+----------------------------------
 Summary of the bug:

 The tpad filter does not work properly when the command includes a frame
 rate change on the input file via -r.  More specifically, if a command
 includes a -r flag to change the framerate on the input file, and that
 command includes the tpad filter, then the output will end up not honoring
 the requested pad duration, and instead will hold the last frame for a
 really long (arbitrary time), and throw an error saying "More than 1000
 frames duplicated'.

 {{{
 Command example:

 ffmpeg -r 15 -i INPUT -filter_complex "[0:v]tpad=stop_duration=5[out]"
 -map [out] OUTPUT


 ....If instead, I remove the -r 15, and use the -framerate flag or the
 frame rate filter instead, then the command appears to work properly.


 Full console output:

 built with gcc 9.2.1 (GCC) 20191010
 configuration: --disable-static --enable-shared --enable-gpl --enable-
 version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv
 --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype
 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy
 --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx
 --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265
 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp
 --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-
 libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-
 libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc
 --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
 --enable-amf
 libavutil 56. 35.101 / 56. 35.101
 libavcodec 58. 62.100 / 58. 62.100
 libavformat 58. 35.100 / 58. 35.100
 libavdevice 58. 9.100 / 58. 9.100
 libavfilter 7. 66.100 / 7. 66.100
 libswscale 5. 6.100 / 5. 6.100
 libswresample 3. 6.100 / 3. 6.100
 libpostproc 55. 6.100 / 55. 6.100
 Input #0, h264, from 'D:\test.264':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: h264 (Constrained Baseline), yuv420p(progressive),
 352x240, 25 fps, 25 tbr, 1200k tbn, 50 tbc
 Stream mapping:
 Stream #0:0 (h264) -> tpad
 tpad -> Stream #0:0 (libx264)
 Press [q] to stop, ? for help
 [libx264 @ 000001ae46a41980] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 000001ae46a41980] profile High, level 1.2, 4:2:0, 8-bit
 [libx264 @ 000001ae46a41980] 264 - core 158 - H.264/MPEG-4 AVC codec -
 Copyleft 2003-2019 - ‚Äčhttp://www.videolan.org/x264.html - options: cabac=1
 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=7
 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=15
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Output #0, mp4, to 'd:\output.mp4':
 Metadata:
 encoder : Lavf58.35.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 352x240,
 q=-1--1, 15 fps, 15360 tbn, 15 tbc
 Metadata:
 encoder : Lavc58.62.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 More than 1000 frames duplicated
 frame=48380 fps=2757 q=-1.0 Lsize= 7491kB time=00:53:45.13 bitrate=
 19.0kbits/s dup=47999 drop=0 speed= 184x
 video:6924kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 8.188529%
 [libx264 @ 000001ae46a41980] frame I:194 Avg QP:14.84 size: 28419
 [libx264 @ 000001ae46a41980] frame P:12206 Avg QP:15.96 size: 65
 [libx264 @ 000001ae46a41980] frame B:35980 Avg QP:24.33 size: 22
 [libx264 @ 000001ae46a41980] consecutive B-frames: 0.8% 0.0% 0.0% 99.1%
 [libx264 @ 000001ae46a41980] mb I I16..4: 2.2% 17.6% 80.2%
 [libx264 @ 000001ae46a41980] mb P I16..4: 0.0% 0.0% 0.0% P16..4: 0.6% 0.1%
 0.1% 0.0% 0.0% skip:99.1%
 [libx264 @ 000001ae46a41980] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.1% 0.1%
 0.0% direct: 0.0% skip:99.8% L0:43.1% L1:45.1% BI:11.9%
 [libx264 @ 000001ae46a41980] 8x8 transform intra:17.8% inter:22.9%
 [libx264 @ 000001ae46a41980] coded y,uvDC,uvAC intra: 98.5% 65.4% 53.5%
 inter: 0.1% 0.1% 0.0%
 [libx264 @ 000001ae46a41980] i16 v,h,dc,p: 1% 16% 28% 56%
 [libx264 @ 000001ae46a41980] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 8% 36% 18% 4%
 4% 4% 10% 4% 13%
 [libx264 @ 000001ae46a41980] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 31% 12% 5%
 5% 5% 12% 5% 15%
 [libx264 @ 000001ae46a41980] i8c dc,h,v,p: 37% 33% 18% 13%
 [libx264 @ 000001ae46a41980] Weighted P-Frames: Y:0.1% UV:0.0%
 [libx264 @ 000001ae46a41980] ref P L0: 82.0% 6.5% 8.4% 2.8% 0.3%
 [libx264 @ 000001ae46a41980] ref B L0: 93.7% 5.0% 1.3%
 [libx264 @ 000001ae46a41980] ref B L1: 97.3% 2.7%
 [libx264 @ 000001ae46a41980] kb/s:17.59

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8480>
FFmpeg <https://ffmpeg.org>
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