[FFmpeg-trac] #4618(undetermined:new): mpeg4_unpack_bframes fails on file that suggested using it
FFmpeg
trac at avcodec.org
Sat Jun 13 00:19:01 CEST 2015
#4618: mpeg4_unpack_bframes fails on file that suggested using it
-------------------------------------+-------------------------------------
Reporter: zach.r.d | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
'''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:'''
1. 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
}}}
2. 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
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4618>
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