[FFmpeg-trac] #6868(ffmpeg:new): HLS segmenter doesn't cut properly with AVC Baseline level 3.0

FFmpeg trac at avcodec.org
Tue Nov 28 05:52:12 EET 2017


#6868: HLS segmenter doesn't cut properly with AVC Baseline level 3.0
------------------------------------+----------------------------------
             Reporter:  beloko      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:  HLS         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+----------------------------------

Comment (by j_karthic):

 It has not been pushed to the main git repo yet, waiting for your
 response.
 Are you sure you applied the patch correctly. I would use the below
 command in the latest master to apply it

 {{{curl https://patchwork.ffmpeg.org/patch/6395/mbox/ | git am}}}

 For me it is producing exact 4.00000 as duration
 {{{
 akamai at akamai-1x2-X4-16G:~/karthick/ffmpeg$ ffmpeg -i
 "http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4"
 -loglevel verbose -threads 0 -c:a aac -sn -vcodec libx264 -vprofile
 baseline -vlevel 3.0 -force_key_frames "expr:gte(t,n_forced*4)" -r 25 -g
 25 -f hls -hls_time 4 -hls_list_size 99999 -start_number 1
 -hls_segment_type mpegts -t 10 /tmp/Big_Buck_Bunny.m3u8
 ffmpeg version N-89279-gd120698 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
   configuration: --enable-gpl --enable-libx264 --prefix=/usr --enable-
 decklink --enable-libfreetype --disable-vaapi --disable-vdpau --enable-
 nonfree
   libavutil      56.  3.100 / 56.  3.100
   libavcodec     58.  6.101 / 58.  6.101
   libavformat    58.  2.102 / 58.  2.102
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  5.100 /  7.  5.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [h264 @ 0x35d7d80] Reinit context to 1920x1088, pix_fmt: yuv420p
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isomavc1
     creation_time   : 2013-12-16T17:44:39.000000Z
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
     composer        : Sacha Goedegebure
   Duration: 00:10:34.53, start: 0.000000, bitrate: 3481 kb/s
     Stream #0:0(und): Video: h264 (High), 1 reference frame (avc1 /
 0x31637661), yuv420p(left), 1920x1080 (1920x1088) [SAR 1:1 DAR 16:9], 2998
 kb/s, 30 fps, 30 tbr, 30k tbn, 60 tbc (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:39.000000Z
       handler_name    : GPAC ISO Video Handler
     Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo,
 s16p, 160 kb/s (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:42.000000Z
       handler_name    : GPAC ISO Audio Handler
     Stream #0:2(und): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, 5.1(side),
 fltp, 320 kb/s (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:42.000000Z
       handler_name    : GPAC ISO Audio Handler
     Side data:
       audio service type: main
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
   Stream #0:2 -> #0:1 (ac3 (native) -> aac (native))
 Press [q] to stop, [?] for help
 [h264 @ 0x35fe520] Reinit context to 1920x1088, pix_fmt: yuv420p
 [graph 0 input from stream 0:0 @ 0x36b1680] w:1920 h:1080 pixfmt:yuv420p
 tb:1/30000 fr:30/1 sar:1/1 sws_param:flags=2
 [libx264 @ 0x3601400] using SAR=1/1
 [libx264 @ 0x3601400] frame MB size (120x68) > level limit (1620)
 [libx264 @ 0x3601400] DPB size (1 frames, 8160 mbs) > level limit (0
 frames, 8100 mbs)
 [libx264 @ 0x3601400] MB rate (204000) > level limit (40500)
 [libx264 @ 0x3601400] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 AVX
 [libx264 @ 0x3601400] profile Constrained Baseline, level 3.0
 [libx264 @ 0x3601400] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options:
 cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=25
 keyint_min=2 scenecut=40 intra_refresh=0 rc_lookahead=25 rc=crf mbtree=1
 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 *** 2 dup!
 Past duration 0.666664 too large
 Past duration 0.833321 too large
 Past duration 0.999992 too large
 [graph_1_in_0_2 @ 0x36c1880] tb:1/48000 samplefmt:fltp samplerate:48000
 chlayout:0x60f
 [aac @ 0x3603aa0] Using a PCE to encode channel layout
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny1.ts' for writing
 [mpegts @ 0x36be920] muxrate VBR, pcr every 2 pkts, sdt every 2147483647,
 pat/pmt every 2147483647 pkts
 Output #0, hls, to '/tmp/Big_Buck_Bunny.m3u8':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isomavc1
     composer        : Sacha Goedegebure
     title           : Big Buck Bunny, Sunflower version
     artist          : Blender Foundation 2008, Janus Bager Kristensen 2013
     comment         : Creative Commons Attribution 3.0 -
 http://bbb3d.renderfarming.net
     genre           : Animation
     encoder         : Lavf58.2.102
     Stream #0:0(und): Video: h264 (libx264), 1 reference frame,
 yuv420p(progressive, left), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps,
 90k tbn, 25 tbc (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:39.000000Z
       handler_name    : GPAC ISO Video Handler
       encoder         : Lavc58.6.101 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     Stream #0:1(und): Audio: aac (LC), 48000 Hz, 5.1(side), fltp, delay
 1024, 394 kb/s (default)
     Metadata:
       creation_time   : 2013-12-16T17:44:42.000000Z
       handler_name    : GPAC ISO Audio Handler
       encoder         : Lavc58.6.101 aac
     Side data:
       audio service type: main
 *** dropping frame 13 from stream 0 at ts 11
 *** dropping frame 18 from stream 0 at ts 16
 *** dropping frame 23 from stream 0 at ts 21
 *** dropping frame 28 from stream 0 at ts 26
 *** dropping frame 33 from stream 0 at ts 31
 *** dropping frame 38 from stream 0 at ts 36
 *** dropping frame 43 from stream 0 at ts 4100:01.42 bitrate=N/A dup=2
 drop=6 speed=2.85x
 *** dropping frame 48 from stream 0 at ts 46
 *** dropping frame 53 from stream 0 at ts 51
 *** dropping frame 58 from stream 0 at ts 56
 *** dropping frame 63 from stream 0 at ts 61
 *** dropping frame 68 from stream 0 at ts 66
 *** dropping frame 73 from stream 0 at ts 71
 *** dropping frame 78 from stream 0 at ts 7600:02.85 bitrate=N/A dup=2
 drop=13 speed=2.85x
 *** dropping frame 83 from stream 0 at ts 81
 *** dropping frame 88 from stream 0 at ts 86
 *** dropping frame 93 from stream 0 at ts 91
 *** dropping frame 98 from stream 0 at ts 96
 *** dropping frame 103 from stream 0 at ts 101
 *** dropping frame 108 from stream 0 at ts 106
 *** dropping frame 113 from stream 0 at ts 111
 *** dropping frame 118 from stream 0 at ts 116:04.52 bitrate=N/A dup=2
 drop=21 speed=   3x
 *** dropping frame 123 from stream 0 at ts 121
 *** dropping frame 128 from stream 0 at ts 126
 *** dropping frame 133 from stream 0 at ts 131
 *** dropping frame 138 from stream 0 at ts 136
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny2.ts' for writing
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny.m3u8.tmp' for writing
 [hls muxer @ 0x35ff940] EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 143 from stream 0 at ts 141:05.73 bitrate=N/A dup=2
 drop=26 speed=2.86x
 *** dropping frame 148 from stream 0 at ts 146
 *** dropping frame 153 from stream 0 at ts 151
 *** dropping frame 158 from stream 0 at ts 156
 *** dropping frame 163 from stream 0 at ts 161
 *** dropping frame 168 from stream 0 at ts 166
 *** dropping frame 173 from stream 0 at ts 171:06.69 bitrate=N/A dup=2
 drop=32 speed=2.67x
 *** dropping frame 178 from stream 0 at ts 176
 *** dropping frame 183 from stream 0 at ts 181
 *** dropping frame 188 from stream 0 at ts 186
 *** dropping frame 193 from stream 0 at ts 191
 *** dropping frame 198 from stream 0 at ts 196
 *** dropping frame 203 from stream 0 at ts 201:08.14 bitrate=N/A dup=2
 drop=38 speed= 2.7x
 *** dropping frame 208 from stream 0 at ts 206
 *** dropping frame 213 from stream 0 at ts 211
 *** dropping frame 218 from stream 0 at ts 216
 *** dropping frame 223 from stream 0 at ts 221
 *** dropping frame 228 from stream 0 at ts 226:09.10 bitrate=N/A dup=2
 drop=43 speed=2.56x
 *** dropping frame 233 from stream 0 at ts 231
 *** dropping frame 238 from stream 0 at ts 236
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny3.ts' for writing
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny.m3u8.tmp' for writing
 [hls muxer @ 0x35ff940] EXT-X-MEDIA-SEQUENCE:1
 *** dropping frame 243 from stream 0 at ts 241
 *** dropping frame 248 from stream 0 at ts 246
 No more output streams to write to, finishing.
 [hls @ 0x3604500] Opening '/tmp/Big_Buck_Bunny.m3u8.tmp' for writing
 [hls muxer @ 0x35ff940] EXT-X-MEDIA-SEQUENCE:1
 frame=  250 fps= 55 q=-1.0 Lsize=N/A time=00:00:10.00 bitrate=N/A dup=2
 drop=48 speed= 2.2x
 video:3986kB audio:481kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 Input file #0
 (http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_1080p_30fps_normal.mp4):
   Input stream #0:0 (video): 307 packets read (3019729 bytes); 298 frames
 decoded;
   Input stream #0:1 (audio): 21 packets read (10080 bytes);
   Input stream #0:2 (audio): 316 packets read (404480 bytes); 316 frames
 decoded (485376 samples);
   Total: 644 packets (3434289 bytes) demuxed
 Output file #0 (/tmp/Big_Buck_Bunny.m3u8):
   Output stream #0:0 (video): 250 frames encoded; 250 packets muxed
 (4081615 bytes);
   Output stream #0:1 (audio): 469 frames encoded (480000 samples); 470
 packets muxed (492502 bytes);
   Total: 720 packets (4574117 bytes) muxed
 [libx264 @ 0x3601400] frame I:13    Avg QP:11.26  size: 65124
 [libx264 @ 0x3601400] frame P:237   Avg QP:17.77  size: 13647
 [libx264 @ 0x3601400] mb I  I16..4: 86.4%  0.0% 13.6%
 [libx264 @ 0x3601400] mb P  I16..4: 14.8%  0.0%  0.7%  P16..4: 13.3%  2.6%
 1.1%  0.0%  0.0%    skip:67.4%
 [libx264 @ 0x3601400] coded y,uvDC,uvAC intra: 5.1% 21.0% 6.9% inter: 4.5%
 9.0% 1.7%
 [libx264 @ 0x3601400] i16 v,h,dc,p: 78% 14%  5%  3%
 [libx264 @ 0x3601400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 16% 28%  5%  6%
 4%  6%  3%  5%
 [libx264 @ 0x3601400] i8c dc,h,v,p: 75% 13% 10%  1%
 [libx264 @ 0x3601400] kb/s:3264.79
 [aac @ 0x3603aa0] Qavg: 207.289
 akamai at akamai-1x2-X4-16G:~/karthick/ffmpeg$ cat /tmp/Big_Buck_Bunny.m3u8
 #EXTM3U
 #EXT-X-VERSION:3
 #EXT-X-TARGETDURATION:4
 #EXT-X-MEDIA-SEQUENCE:1
 #EXTINF:4.000000,
 Big_Buck_Bunny1.ts
 #EXTINF:4.000000,
 Big_Buck_Bunny2.ts
 #EXTINF:2.000000,
 Big_Buck_Bunny3.ts
 #EXT-X-ENDLIST
 akamai at akamai-1x2-X4-16G:~/karthick/ffmpeg$ }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6868#comment:9>
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