[FFmpeg-trac] #9999(undetermined:new): Failure to create webm manifest for single key-frame video

[FFmpeg]

#9999: Failure to create webm manifest for single key-frame video
-------------------------------------+-------------------------------------
             Reporter:  jlenart      |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  webm         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Tom Boshoven):

 I built ffmpeg from master and ran the commands (with additional
 verbosity) in the ticket.
 The issue can still be reproduced.

 First command:
 {{{
 ./ffmpeg/ffmpeg -y -v verbose -f lavfi -i testsrc -c:v libvpx-vp9 -an -to
 5 -f webm -dash 1 output.webm
 }}}

 {{{
 ffmpeg version N-108912-g2537fdc510 Copyright (c) 2000-2022 the FFmpeg
 developers
   built with gcc 12.2.0 (GCC)
   configuration: --enable-libvpx --disable-doc
   libavutil      57. 40.100 / 57. 40.100
   libavcodec     59. 51.101 / 59. 51.101
   libavformat    59. 34.101 / 59. 34.101
   libavdevice    59.  8.101 / 59.  8.101
   libavfilter     8. 49.101 /  8. 49.101
   libswscale      6.  8.112 /  6.  8.112
   libswresample   4.  9.100 /  4.  9.100
 [Parsed_testsrc_0 @ 0x55ba67e5fbc0] size:320x240 rate:25/1
 duration:-1.000000 sar:1/1
 Input #0, lavfi, from 'testsrc':
   Duration: N/A, start: 0.000000, bitrate: N/A
   Stream #0:0: Video: wrapped_avframe, 1 reference frame, rgb24, 320x240
 [SAR 1:1 DAR 4:3], 25 fps, 25 tbr, 25 tbn
 Stream mapping:
   Stream #0:0 -> #0:0 (wrapped_avframe (native) -> vp9 (libvpx-vp9))
 Press [q] to stop, [?] for help
 [graph 0 input from stream 0:0 @ 0x55ba67e69600] w:320 h:240 pixfmt:rgb24
 tb:1/25 fr:25/1 sar:1/1
 [auto_scale_0 @ 0x55ba67e6d740] w:iw h:ih flags:'' interl:0
 [format @ 0x55ba67e6a700] auto-inserting filter 'auto_scale_0' between the
 filter 'Parsed_null_0' and the filter 'format'
 [auto_scale_0 @ 0x55ba67e6d740] w:320 h:240 fmt:rgb24 sar:1/1 -> w:320
 h:240 fmt:gbrp sar:1/1 flags:0x0
 [libvpx-vp9 @ 0x55ba67e65200] v1.12.0
 [libvpx-vp9 @ 0x55ba67e65200] --prefix=/usr --disable-install-docs
 --disable-install-srcs --enable-pic --enable-postproc --enable-runtime-
 cpu-detect --enable-shared --enable-vp8 --enable-vp9 --enable-
 vp9-highbitdepth --enable-vp9-temporal-denoising
 [libvpx-vp9 @ 0x55ba67e65200] Neither bitrate nor constrained quality
 specified, using default CRF of 32
 Output #0, webm, to 'output.webm':
   Metadata:
     encoder         : Lavf59.34.101
   Stream #0:0: Video: vp9, 1 reference frame, gbrp(pc,
 gbr/unknown/unknown, progressive), 320x240 (0x0) [SAR 1:1 DAR 4:3],
 q=2-31, 25 fps, 1k tbn
     Metadata:
       encoder         : Lavc59.51.101 libvpx-vp9
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Automatically inserted bitstream filter 'vp9_superframe'; args=''itrate=
 -0.0kbits/s speed=N/A
 No more output streams to write to, finishing.e=00:00:03.32 bitrate=
 1.2kbits/s speed=3.28x
 All streams finished for output file #0
 Terminating muxer thread 0
 [AVIOContext @ 0x55ba67e65980] Statistics: 36929 bytes written, 0 seeks, 1
 writeouts
 frame=  125 fps= 86 q=27.0 Lsize=      36kB time=00:00:04.96 bitrate=
 59.6kbits/s speed= 3.4x
 video:35kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 3.905349%
 Input file #0 (testsrc):
   Input stream #0:0 (video): 126 packets read (60480 bytes); 126 frames
 decoded;
   Total: 126 packets (60480 bytes) demuxed
 Output file #0 (output.webm):
   Output stream #0:0 (video): 125 frames encoded; 125 packets muxed (35541
 bytes);
   Total: 125 packets (35541 bytes) muxed
 Terminating demuxer thread 0
 }}}

 Second command:
 {{{
 ./ffmpeg/ffmpeg -y -v verbose -f webm_dash_manifest -i output.webm -c copy
 -map 0 -f webm_dash_manifest -adaptation_sets "id=0,streams=0" result.mpd
 }}}

 {{{
 ffmpeg version N-108912-g2537fdc510 Copyright (c) 2000-2022 the FFmpeg
 developers
   built with gcc 12.2.0 (GCC)
   configuration: --enable-libvpx --disable-doc
   libavutil      57. 40.100 / 57. 40.100
   libavcodec     59. 51.101 / 59. 51.101
   libavformat    59. 34.101 / 59. 34.101
   libavdevice    59.  8.101 / 59.  8.101
   libavfilter     8. 49.101 /  8. 49.101
   libswscale      6.  8.112 /  6.  8.112
   libswresample   4.  9.100 /  4.  9.100
 [webm_dash_manifest @ 0x55e37720a640] Error parsing Cues
 [AVIOContext @ 0x55e3772132c0] Statistics: 36951 bytes read, 3 seeks
 output.webm: Invalid data found when processing input
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9999#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker