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#4618 closed defect (invalid)

mpeg4_unpack_bframes fails on file that suggested using it

Reported by:	Zach R. D.	Owned by:
Priority:	normal	Component:	undetermined
Version:	git-master	Keywords:	asp
Cc:		Blocked By:
Blocking:		Reproduced by developer:	no
Analyzed by developer:	no

Description

Summary of the bug: When attempting to convert the attached file from its original format to another, the following message appears: "[mpeg4 @ 0000000004d0e940] Video uses a non-standard and wasteful way to store B-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream filter to fix it." However, using mpeg4_upack_bframes results in the following error: "[libx264 @ 000000000483d4c0] The mpeg4_unpack_bframes bitstream filter is only useful for mpeg4."

Expected behavior: Either the file should be successfully processed with mpeg4_unpack_brframes, or its use should not be suggested in the first place.

How to reproduce:

Download the attached file, attempt to convert it to H.264, note appearance of message:

C:\Users\support\Documents>ffmpeg -i "Doves.avi" -codec:v libx264 -crf 15 -prese
t medium test.mp4
ffmpeg version N-72662-g7be0f48 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.9.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopenc
ore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --ena
ble-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable
-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enabl
e-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable
-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --e
nable-lzma --enable-decklink --enable-zlib
  libavutil      54. 26.101 / 54. 26.101
  libavcodec     56. 41.101 / 56. 41.101
  libavformat    56. 34.100 / 56. 34.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 16.101 /  5. 16.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, avi, from 'Doves.avi':
  Duration: 00:00:30.03, start: 0.000000, bitrate: 579 kb/s
    Stream #0:0: Video: mpeg4 (DX50 / 0x30355844), yuv420p, 512x512 [SAR 1:1 DAR
 1:1], 573 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
File 'test.mp4' already exists. Overwrite ? [y/N] y
[libx264 @ 000000000476d420] using SAR=1/1
[libx264 @ 000000000476d420] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 000000000476d420] profile High, level 3.0
[libx264 @ 000000000476d420] 264 - core 146 r2538 121396c - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
imate=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=
25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=15.0 qcomp=0.
60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
  Metadata:
    encoder         : Lavf56.34.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 512x51
2 [SAR 1:1 DAR 1:1], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
    Metadata:
      encoder         : Lavc56.41.101 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[mpeg4 @ 0000000004d0e940] Video uses a non-standard and wasteful way to store B
-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream f
ilter to fix it.
frame=  370 fps=0.0 q=21.0 size=     509kB time=00:00:10.47 bitrate= 397.8kbits/
frame=  759 fps=759 q=21.0 size=     963kB time=00:00:23.45 bitrate= 336.4kbits/
frame=  899 fps=661 q=-1.0 Lsize=    1416kB time=00:00:29.99 bitrate= 386.8kbits
/s
video:1405kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 0.807114%
[libx264 @ 000000000476d420] frame I:11    Avg QP: 3.69  size: 12485
[libx264 @ 000000000476d420] frame P:262   Avg QP: 8.74  size:  4670
[libx264 @ 000000000476d420] frame B:626   Avg QP:11.04  size:   123
[libx264 @ 000000000476d420] consecutive B-frames:  5.7%  1.8%  8.0% 84.5%
[libx264 @ 000000000476d420] mb I  I16..4: 59.8% 36.0%  4.2%
[libx264 @ 000000000476d420] mb P  I16..4:  0.7%  7.3%  1.0%  P16..4:  5.6%  2.7
%  1.4%  0.0%  0.0%    skip:81.2%
[libx264 @ 000000000476d420] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  5.2%  0.4
%  0.1%  direct: 0.1%  skip:94.3%  L0:55.5% L1:42.9% BI: 1.6%
[libx264 @ 000000000476d420] 8x8 transform intra:66.6% inter:77.8%
[libx264 @ 000000000476d420] coded y,uvDC,uvAC intra: 66.9% 0.1% 0.0% inter: 1.6
% 0.0% 0.0%
[libx264 @ 000000000476d420] i16 v,h,dc,p: 75% 14% 10%  1%
[libx264 @ 000000000476d420] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 19% 27%  3%  4%
 6%  4%  7%  7%
[libx264 @ 000000000476d420] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 58%  9%  3%  2%
 3%  2%  3%  3%
[libx264 @ 000000000476d420] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 000000000476d420] Weighted P-Frames: Y:7.6% UV:0.4%
[libx264 @ 000000000476d420] ref P L0: 74.0%  8.9% 13.3%  3.7%  0.2%
[libx264 @ 000000000476d420] ref B L0: 83.7% 14.8%  1.4%
[libx264 @ 000000000476d420] ref B L1: 96.6%  3.4%
[libx264 @ 000000000476d420] kb/s:383.48

Attempt same conversion with -bsf:v mpeg4_unpack_bframes:

C:\Users\support\Documents>ffmpeg -i "Doves.avi" -bsf:v mpeg4_unpack_bframes -co
dec:v libx264 -crf 15 -preset medium test.mp4
ffmpeg version N-72662-g7be0f48 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.9.2 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopenc
ore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --ena
ble-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable
-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enabl
e-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable
-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --e
nable-lzma --enable-decklink --enable-zlib
  libavutil      54. 26.101 / 54. 26.101
  libavcodec     56. 41.101 / 56. 41.101
  libavformat    56. 34.100 / 56. 34.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 16.101 /  5. 16.101
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, avi, from 'Doves.avi':
  Duration: 00:00:30.03, start: 0.000000, bitrate: 579 kb/s
    Stream #0:0: Video: mpeg4 (DX50 / 0x30355844), yuv420p, 512x512 [SAR 1:1 DAR
 1:1], 573 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
File 'test.mp4' already exists. Overwrite ? [y/N] y
[libx264 @ 000000000473d4c0] using SAR=1/1
[libx264 @ 000000000473d4c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 000000000473d4c0] profile High, level 3.0
[libx264 @ 000000000473d4c0] 264 - core 146 r2538 121396c - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
imate=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=
25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=15.0 qcomp=0.
60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'test.mp4':
  Metadata:
    encoder         : Lavf56.34.100
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 512x51
2 [SAR 1:1 DAR 1:1], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
    Metadata:
      encoder         : Lavc56.41.101 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[mpeg4 @ 0000000004af95c0] Video uses a non-standard and wasteful way to store B
-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream f
ilter to fix it.
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument

... snipping many identical lines ...

[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
[libx264 @ 000000000473d4c0] The mpeg4_unpack_bframes bitstream filter is only u
seful for mpeg4.
Failed to open bitstream filter mpeg4_unpack_bframes for stream 0 with codec lib
x264: Invalid argument
frame=  899 fps=483 q=-1.0 Lsize=    1416kB time=00:00:29.99 bitrate= 386.8kbits
/s
video:1405kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 0.807114%
[libx264 @ 000000000473d4c0] frame I:11    Avg QP: 3.69  size: 12485
[libx264 @ 000000000473d4c0] frame P:262   Avg QP: 8.74  size:  4670
[libx264 @ 000000000473d4c0] frame B:626   Avg QP:11.04  size:   123
[libx264 @ 000000000473d4c0] consecutive B-frames:  5.7%  1.8%  8.0% 84.5%
[libx264 @ 000000000473d4c0] mb I  I16..4: 59.8% 36.0%  4.2%
[libx264 @ 000000000473d4c0] mb P  I16..4:  0.7%  7.3%  1.0%  P16..4:  5.6%  2.7
%  1.4%  0.0%  0.0%    skip:81.2%
[libx264 @ 000000000473d4c0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  5.2%  0.4
%  0.1%  direct: 0.1%  skip:94.3%  L0:55.5% L1:42.9% BI: 1.6%
[libx264 @ 000000000473d4c0] 8x8 transform intra:66.6% inter:77.8%
[libx264 @ 000000000473d4c0] coded y,uvDC,uvAC intra: 66.9% 0.1% 0.0% inter: 1.6
% 0.0% 0.0%
[libx264 @ 000000000473d4c0] i16 v,h,dc,p: 75% 14% 10%  1%
[libx264 @ 000000000473d4c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 19% 27%  3%  4%
 6%  4%  7%  7%
[libx264 @ 000000000473d4c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 58%  9%  3%  2%
 3%  2%  3%  3%
[libx264 @ 000000000473d4c0] i8c dc,h,v,p: 100%  0%  0%  0%
[libx264 @ 000000000473d4c0] Weighted P-Frames: Y:7.6% UV:0.4%
[libx264 @ 000000000473d4c0] ref P L0: 74.0%  8.9% 13.3%  3.7%  0.2%
[libx264 @ 000000000473d4c0] ref B L0: 83.7% 14.8%  1.4%
[libx264 @ 000000000473d4c0] ref B L1: 96.6%  3.4%
[libx264 @ 000000000473d4c0] kb/s:383.48

Attachments (1)

Doves.avi (2.1 MB ) - added by Zach R. D. 9 years ago.

Change History (3)

by Zach R. D., 9 years ago

Attachment:	Doves.avi added

comment:1 by Carl Eugen Hoyos, 9 years ago

Keywords:	asp added
Version:	unspecified → git-master

comment:2 by Michael Niedermayer, 9 years ago

Resolution:	→ invalid
Status:	new → closed

ffmpeg -i Doves.avi -bsf:v mpeg4_unpack_bframes -vcodec copy out.avi
works as expected.
You tried to apply the mpeg4_unpack_bframes filter to the h264 stream.
ill try to improve the printed message to make the suggestion more clear

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