[FFmpeg-trac] #7044(undetermined:new): hls duration incorrect with split filter

FFmpeg trac at avcodec.org
Mon Feb 26 18:56:36 EET 2018


#7044: hls duration incorrect with split filter
-------------------------------------+-------------------------------------
             Reporter:  ronag        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I'm trying to encode two video streams into an HLS file (fill & alpha).
 However, when I use the split filter (which I need for this) the segment
 durations in the manifest file becomes x2 (30s) vs the actual duration
 (15s).

 {{{
 ffmpeg -i M7HGQ8gA7Sf09Z.qt -c:v libx264 -g:v 100 -filter_complex:v
 "[0:v]fps=fps=25,split=2" -f hls -hls_time 4 -hls_flags single_file
 test.m3u8 -y && cat test.m3u8
 ffmpeg version git-2018-02-26-f4709f1 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-f4709f1 --enable-
 shared --enable-pthreads --enable-version3 --enable-hardcoded-tables
 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
 --enable-ffplay --enable-libmp3lame --enable-libwebp --enable-libx264
 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
   libavutil      56.  7.101 / 56.  7.101
   libavcodec     58. 13.100 / 58. 13.100
   libavformat    58. 10.100 / 58. 10.100
   libavdevice    58.  2.100 / 58.  2.100
   libavfilter     7. 12.100 /  7. 12.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'M7HGQ8gA7Sf09Z.qt':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2018-02-03T19:48:37.000000Z
   Duration: 00:00:14.98, start: 0.000000, bitrate: 33223 kb/s
     Stream #0:0(eng): Video: png (png  / 0x20676E70), rgba(pc), 1280x720
 [SAR 2834:2834 DAR 16:9], 33217 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k
 tbc (default)
     Metadata:
       creation_time   : 2018-02-03T19:48:37.000000Z
       handler_name    : Gestor de datos de alias Apple
       encoder         : PNG
       timecode        : 00:00:00;00
     Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
     Metadata:
       creation_time   : 2018-02-03T19:49:39.000000Z
       handler_name    : Gestor de datos de alias Apple
       timecode        : 00:00:00;00
 Stream mapping:
   Stream #0:0 (png) -> fps
   split:output0 -> Stream #0:0 (libx264)
   split:output1 -> Stream #0:1 (libx264)
 Press [q] to stop, [?] for help
 [libx264 @ 0x7fc570802200] using SAR=1/1
 [libx264 @ 0x7fc570802200] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 0x7fc570802200] profile High 4:4:4 Predictive, level 3.1, 4:4:4
 8-bit
 [libx264 @ 0x7fc570802200] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12
 lookahead_threads=2 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=100 keyint_min=10
 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
 [libx264 @ 0x7fc570803a00] using SAR=1/1
 [libx264 @ 0x7fc570803a00] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 0x7fc570803a00] profile High 4:4:4 Predictive, level 3.1, 4:4:4
 8-bit
 [libx264 @ 0x7fc570803a00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12
 lookahead_threads=2 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=100 keyint_min=10
 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
 [hls @ 0x7fc57080b400] More than a single video stream present, expect
 issues decoding it.
 [hls @ 0x7fc57080b400] Opening 'test.ts' for writing
 Output #0, hls, to 'test.m3u8':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     encoder         : Lavf58.10.100
     Stream #0:0: Video: h264 (libx264), yuv444p, 1280x720 [SAR 1:1 DAR
 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
     Metadata:
       encoder         : Lavc58.13.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     Stream #0:1: Video: h264 (libx264), yuv444p, 1280x720 [SAR 1:1 DAR
 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
     Metadata:
       encoder         : Lavc58.13.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 [hls @ 0x7fc57080b400] Opening 'test.m3u8.tmp' for writing2 bitrate=N/A
 speed=0.961x
 [hls @ 0x7fc57080b400] Opening 'test.m3u8.tmp' for writing6 bitrate=N/A
 speed=1.32x
 [hls @ 0x7fc57080b400] Opening 'test.m3u8.tmp' for writing4 bitrate=N/A
 speed=1.55x
 [hls @ 0x7fc57080b400] Opening 'test.m3u8.tmp' for writing8 bitrate=N/A
 speed=1.55x
 frame=  375 fps= 42 q=-1.0 Lq=-1.0 size=N/A time=00:00:14.92 bitrate=N/A
 speed=1.68x
 video:1430kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 [libx264 @ 0x7fc570802200] frame I:4     Avg QP: 9.58  size:  9548
 [libx264 @ 0x7fc570802200] frame P:211   Avg QP:16.21  size:  2499
 [libx264 @ 0x7fc570802200] frame B:160   Avg QP:24.70  size:  1038
 [libx264 @ 0x7fc570802200] consecutive B-frames: 25.1% 51.2%  8.8% 14.9%
 [libx264 @ 0x7fc570802200] mb I  I16..4: 86.8%  0.0% 13.2%
 [libx264 @ 0x7fc570802200] mb P  I16..4:  5.0%  0.0%  0.6%  P16..4:  8.2%
 3.0%  0.9%  0.0%  0.0%    skip:82.2%
 [libx264 @ 0x7fc570802200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 13.9%
 1.9%  0.1%  direct: 0.1%  skip:83.9%  L0:46.5% L1:50.5% BI: 3.0%
 [libx264 @ 0x7fc570802200] coded y,u,v intra: 5.3% 2.4% 2.6% inter: 0.8%
 0.2% 0.2%
 [libx264 @ 0x7fc570802200] i16 v,h,dc,p: 88%  9%  3%  0%
 [libx264 @ 0x7fc570802200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 53%  3%
 4%  4%  4%  3%  2%
 [libx264 @ 0x7fc570802200] Weighted P-Frames: Y:8.1% UV:0.0%
 [libx264 @ 0x7fc570802200] ref P L0: 75.6%  3.9% 15.0%  5.4%  0.1%
 [libx264 @ 0x7fc570802200] ref B L0: 86.0% 13.6%  0.4%
 [libx264 @ 0x7fc570802200] ref B L1: 99.9%  0.1%
 [libx264 @ 0x7fc570802200] kb/s:390.14
 [libx264 @ 0x7fc570803a00] frame I:4     Avg QP: 9.58  size:  9548
 [libx264 @ 0x7fc570803a00] frame P:211   Avg QP:16.21  size:  2499
 [libx264 @ 0x7fc570803a00] frame B:160   Avg QP:24.70  size:  1038
 [libx264 @ 0x7fc570803a00] consecutive B-frames: 25.1% 51.2%  8.8% 14.9%
 [libx264 @ 0x7fc570803a00] mb I  I16..4: 86.8%  0.0% 13.2%
 [libx264 @ 0x7fc570803a00] mb P  I16..4:  5.0%  0.0%  0.6%  P16..4:  8.2%
 3.0%  0.9%  0.0%  0.0%    skip:82.2%
 [libx264 @ 0x7fc570803a00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 13.9%
 1.9%  0.1%  direct: 0.1%  skip:83.9%  L0:46.5% L1:50.5% BI: 3.0%
 [libx264 @ 0x7fc570803a00] coded y,u,v intra: 5.3% 2.4% 2.6% inter: 0.8%
 0.2% 0.2%
 [libx264 @ 0x7fc570803a00] i16 v,h,dc,p: 88%  9%  3%  0%
 [libx264 @ 0x7fc570803a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 53%  3%
 4%  4%  4%  3%  2%
 [libx264 @ 0x7fc570803a00] Weighted P-Frames: Y:8.1% UV:0.0%
 [libx264 @ 0x7fc570803a00] ref P L0: 75.6%  3.9% 15.0%  5.4%  0.1%
 [libx264 @ 0x7fc570803a00] ref B L0: 86.0% 13.6%  0.4%
 [libx264 @ 0x7fc570803a00] ref B L1: 99.9%  0.1%
 [libx264 @ 0x7fc570803a00] kb/s:390.14
 #EXTM3U
 #EXT-X-VERSION:4
 #EXT-X-TARGETDURATION:8
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:8.000000,
 #EXT-X-BYTERANGE:585432 at 0
 test.ts
 #EXTINF:8.000000,
 #EXT-X-BYTERANGE:134984 at 585432
 test.ts
 #EXTINF:8.000000,
 #EXT-X-BYTERANGE:337648 at 720416
 test.ts
 #EXTINF:6.000000,
 #EXT-X-BYTERANGE:533920 at 1058064
 test.ts
 #EXT-X-ENDLIST
 }}}

 However, without the split everything is correct:

 {{{
 Roberts-MBP-2:Desktop ronagy$ ffmpeg -i M7HGQ8gA7Sf09Z.qt -c:v libx264
 -g:v 100 -filter_complex:v "[0:v]fps=fps=25" -f hls -hls_time 4 -hls_flags
 single_file test.m3u8 -y && cat test.m3u8
 ffmpeg version git-2018-02-26-f4709f1 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-f4709f1 --enable-
 shared --enable-pthreads --enable-version3 --enable-hardcoded-tables
 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
 --enable-ffplay --enable-libmp3lame --enable-libwebp --enable-libx264
 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
   libavutil      56.  7.101 / 56.  7.101
   libavcodec     58. 13.100 / 58. 13.100
   libavformat    58. 10.100 / 58. 10.100
   libavdevice    58.  2.100 / 58.  2.100
   libavfilter     7. 12.100 /  7. 12.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'M7HGQ8gA7Sf09Z.qt':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2018-02-03T19:48:37.000000Z
   Duration: 00:00:14.98, start: 0.000000, bitrate: 33223 kb/s
     Stream #0:0(eng): Video: png (png  / 0x20676E70), rgba(pc), 1280x720
 [SAR 2834:2834 DAR 16:9], 33217 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k
 tbc (default)
     Metadata:
       creation_time   : 2018-02-03T19:48:37.000000Z
       handler_name    : Gestor de datos de alias Apple
       encoder         : PNG
       timecode        : 00:00:00;00
     Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
     Metadata:
       creation_time   : 2018-02-03T19:49:39.000000Z
       handler_name    : Gestor de datos de alias Apple
       timecode        : 00:00:00;00
 Stream mapping:
   Stream #0:0 (png) -> fps
   fps -> Stream #0:0 (libx264)
 Press [q] to stop, [?] for help
 [libx264 @ 0x7f8335804200] using SAR=1/1
 [libx264 @ 0x7f8335804200] using cpu capabilities: MMX2 SSE2Fast SSSE3
 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 0x7f8335804200] profile High 4:4:4 Predictive, level 3.1, 4:4:4
 8-bit
 [libx264 @ 0x7f8335804200] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12
 lookahead_threads=2 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=100 keyint_min=10
 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
 [hls @ 0x7f8335818c00] Opening 'test.ts' for writing
 Output #0, hls, to 'test.m3u8':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     encoder         : Lavf58.10.100
     Stream #0:0: Video: h264 (libx264), yuv444p, 1280x720 [SAR 1:1 DAR
 16:9], q=-1--1, 25 fps, 90k tbn, 25 tbc (default)
     Metadata:
       encoder         : Lavc58.13.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 [hls @ 0x7f8335818c00] Opening 'test.m3u8.tmp' for writingte=N/A
 speed=1.69x
 [hls @ 0x7f8335818c00] Opening 'test.m3u8.tmp' for writingte=N/A
 speed=2.13x
 [hls @ 0x7f8335818c00] Opening 'test.m3u8.tmp' for writingte=N/A
 speed=2.69x
 [hls @ 0x7f8335818c00] Opening 'test.m3u8.tmp' for writingte=N/A
 speed=2.76x
 frame=  375 fps= 75 q=-1.0 Lsize=N/A time=00:00:14.92 bitrate=N/A
 speed=2.99x
 video:715kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 [libx264 @ 0x7f8335804200] frame I:4     Avg QP: 9.58  size:  9548
 [libx264 @ 0x7f8335804200] frame P:211   Avg QP:16.21  size:  2499
 [libx264 @ 0x7f8335804200] frame B:160   Avg QP:24.70  size:  1038
 [libx264 @ 0x7f8335804200] consecutive B-frames: 25.1% 51.2%  8.8% 14.9%
 [libx264 @ 0x7f8335804200] mb I  I16..4: 86.8%  0.0% 13.2%
 [libx264 @ 0x7f8335804200] mb P  I16..4:  5.0%  0.0%  0.6%  P16..4:  8.2%
 3.0%  0.9%  0.0%  0.0%    skip:82.2%
 [libx264 @ 0x7f8335804200] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 13.9%
 1.9%  0.1%  direct: 0.1%  skip:83.9%  L0:46.5% L1:50.5% BI: 3.0%
 [libx264 @ 0x7f8335804200] coded y,u,v intra: 5.3% 2.4% 2.6% inter: 0.8%
 0.2% 0.2%
 [libx264 @ 0x7f8335804200] i16 v,h,dc,p: 88%  9%  3%  0%
 [libx264 @ 0x7f8335804200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 11% 53%  3%
 4%  4%  4%  3%  2%
 [libx264 @ 0x7f8335804200] Weighted P-Frames: Y:8.1% UV:0.0%
 [libx264 @ 0x7f8335804200] ref P L0: 75.6%  3.9% 15.0%  5.4%  0.1%
 [libx264 @ 0x7f8335804200] ref B L0: 86.0% 13.6%  0.4%
 [libx264 @ 0x7f8335804200] ref B L1: 99.9%  0.1%
 [libx264 @ 0x7f8335804200] kb/s:390.14
 #EXTM3U
 #EXT-X-VERSION:4
 #EXT-X-TARGETDURATION:4
 #EXT-X-MEDIA-SEQUENCE:0
 #EXTINF:4.000000,
 #EXT-X-BYTERANGE:293092 at 0
 test.ts
 #EXTINF:4.000000,
 #EXT-X-BYTERANGE:67680 at 293092
 test.ts
 #EXTINF:4.000000,
 #EXT-X-BYTERANGE:168824 at 360772
 test.ts
 #EXTINF:3.000000,
 #EXT-X-BYTERANGE:266960 at 529596
 test.ts
 #EXT-X-ENDLIST
 }}}

 This is what I want to achieve:
 {{{
 ffmpeg -i M7HGQ8gA7Sf09Z.qt -c:v libx264 -g:v 100 -filter_complex:v
 "[0:v]fps=fps=25,split=2[f1][f2];[f2]alphaextract[a1]" -map f1 -map a1 -f
 hls -hls_time 4 -hls_flags single_file test.m3u8 -y && cat test.m3u8
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7044>
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