Opened 7 years ago
Last modified 6 years ago
#6937 new defect
When converting from APE program eats up 4 bytes.
| Reported by: | Alex | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | undetermined |
| Version: | git-master | Keywords: | APE seek regression |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
If I use the -ss option and the seconds value is a multiple of 5, then the program eats up the first 2 bytes.
How to reproduce:
Preparing:
ffmpeg -y -t 60 -f s16le -i /dev/urandom -ar 44100 -acodec pcm_s16le -ac 2 in.wav mac in.wav in.ape -c2000
Test 1 (Size):
ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.wav -f wav from_wav.wav ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.ape -f wav from_ape.wav ls -l from_wav.wav from_ape.wav -rw-rw-r-- 1 sokoloff sokoloff 5292074 дек 29 18:49 from_ape.wav -rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 29 18:49 from_wav.wav
The size of the file "from_ape.wav" is less on 4 bytes
Test 2 (Hex):
ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.wav -f s16le from_wav.raw ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.ape -f s16le from_ape.raw hexdump from_wav.raw | head -n 4 0000000 aa55 aa55 b179 b179 fa3d fa3d 0f09 0f09 0000010 4981 4981 bd53 bd53 aec1 aec1 ebca ebca 0000020 c4bb c4bb d85d d85d eeb1 eeb1 b934 b934 0000030 c1dd c1dd 295d 295d 0851 0851 3641 3641 hexdump from_ape.raw | head -n 4 0000000 b179 b179 fa3d fa3d 0f09 0f09 4981 4981 0000010 bd53 bd53 aec1 aec1 ebca ebca c4bb c4bb 0000020 d85d d85d eeb1 eeb1 b934 b934 c1dd c1dd 0000030 295d 295d 0851 0851 3641 3641 2f58 2f58
As you can see in from_ape.raw missing 4 bytes (aa55 aa55) at the beginning
Version
ffmpeg -version ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA) configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-ladspa --enable-libbluray --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-x11grab --enable-runtime-cpudetect --enable-libdc1394 --enable-libschroedinger --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libnut --enable-libgsm --enable-libcelt --enable-avresample --enable-opencl --disable-libopencv --enable-libopenjpeg --enable-libopus --enable-libsoxr --enable-libwavpack --disable-libxavs --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libx264 --enable-libx265 --enable-libvo-amrwbenc --enable-libxvid libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100
Reproduced on Fedora 25
ffmpeg -version ffmpeg version 3.1.11 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 6.4.1 (GCC) 20170727 (Red Hat 6.4.1-1) configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld' --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libcdio --enable-indev=jack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --extra-cflags=-I/usr/include/nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 48.101 / 57. 48.101 libavformat 57. 41.100 / 57. 41.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 47.100 / 6. 47.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100
Attachments (1)
Change History (11)
by , 7 years ago
comment:1 by , 7 years ago
| Component: | ffmpeg → undetermined |
|---|
Is the issue you want to report reproducible with current FFmpeg git head?
Please provide the command line that allows to reproduce the issue together with the complete, uncut console output to make this a valid ticket.
comment:2 by , 7 years ago
Is the issue you want to report reproducible with current FFmpeg git head?
Yes this bug is reproduced on 0c78b6a416c661afed745d44495b5194f714fb96 commit.
[sokoloff@sokoloff-home 2]$ ./ffmpeg -y -t 60 -f s16le -i /dev/urandom -ar 44100 -acodec pcm_s16le -ac 2 in.wav
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Guessed Channel Layout for Input Stream #0.0 : mono
Input #0, s16le, from '/dev/urandom':
Duration: N/A, bitrate: 705 kb/s
Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'in.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 10336kB time=00:01:00.00 bitrate=1411.2kbits/s speed= 219x
video:0kB audio:10336kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000737%
[sokoloff@sokoloff-home 2]$ mac in.wav in.ape -c2000
--- Monkey's Audio Console Front End (v 4.11) (c) Matthew T. Ashland ---
Compressing (normal)...
Progress: 100.0% (0.0 seconds remaining, 0.2 seconds total)
Success...
[sokoloff@sokoloff-home 2]$ ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.wav -f wav from_wav.wav
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-ladspa --enable-libbluray --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-x11grab --enable-runtime-cpudetect --enable-libdc1394 --enable-libschroedinger --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libnut --enable-libgsm --enable-libcelt --enable-avresample --enable-opencl --disable-libopencv --enable-libopenjpeg --enable-libopus --enable-libsoxr --enable-libwavpack --disable-libxavs --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libx264 --enable-libx265 --enable-libvo-amrwbenc --enable-libxvid
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'in.wav':
Metadata:
encoder : Lavf58.3.100
Duration: 00:01:00.00, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Output #0, wav, to 'from_wav.wav':
Metadata:
ISFT : Lavf57.56.101
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc57.64.101 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.52e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001474%
[sokoloff@sokoloff-home 2]$ ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.ape -f wav from_ape.wav
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration: --prefix=/usr --enable-shared --libdir=/usr/lib64 --shlibdir=/usr/lib64 --incdir=/usr/include --disable-stripping --enable-postproc --enable-gpl --enable-pthreads --enable-ladspa --enable-libbluray --enable-libtheora --enable-libvorbis --disable-encoder=vorbis --enable-libvpx --enable-x11grab --enable-runtime-cpudetect --enable-libdc1394 --enable-libschroedinger --enable-librtmp --enable-libspeex --enable-libfreetype --enable-libnut --enable-libgsm --enable-libcelt --enable-avresample --enable-opencl --disable-libopencv --enable-libopenjpeg --enable-libopus --enable-libsoxr --enable-libwavpack --disable-libxavs --enable-libmodplug --enable-libass --enable-gnutls --enable-libcdio --enable-libpulse --enable-libv4l2 --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libx264 --enable-libx265 --enable-libvo-amrwbenc --enable-libxvid
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, ape, from 'in.ape':
Duration: 00:01:00.00, start: 0.000000, bitrate: 699 kb/s
Stream #0:0: Audio: ape (APE / 0x20455041), 44100 Hz, stereo, s16p
Output #0, wav, to 'from_ape.wav':
Metadata:
ISFT : Lavf57.56.101
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc57.64.101 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (ape (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed= 391x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001474%
[sokoloff@sokoloff-home 2]$ ls -l from_wav.wav from_ape.wav
-rw-rw-r-- 1 sokoloff sokoloff 5292074 дек 29 21:46 from_ape.wav
-rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 29 21:45 from_wav.wav
Files have different length.
Size of from_ape.wav is incorrect, it should be 5292078 bytes 78 (header) + 5292000 (data) (44100 * 2 channel * 2 byte per sec. * 30 seconds)
comment:3 by , 7 years ago
| Keywords: | seek added |
|---|---|
| Version: | unspecified → git-master |
Is the issue reproducible with current FFmpeg git head? Afaict, you tested 3.2.4 for the relevant command.
Why do you believe that the output files have to have the same length?
I expect that this is not how seeking works in general, or is it?
follow-up: 5 comment:4 by , 7 years ago
Is the issue reproducible with current FFmpeg git head? Afaict, you tested 3.2.4 for the relevant command.
Sorry.
[sokoloff@sokoloff-home bug]$ ./ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.wav -f wav from_wav.wav
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'in.wav':
Metadata:
encoder : Lavf57.56.101
Duration: 00:09:34.00, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'from_wav.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.09e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001474%
[sokoloff@sokoloff-home bug]$ ./ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.ape -f wav from_ape.wav
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Input #0, ape, from 'in.ape':
Duration: 00:09:34.00, start: 0.000000, bitrate: 699 kb/s
Stream #0:0: Audio: ape (APE / 0x20455041), 44100 Hz, stereo, s16p
Stream mapping:
Stream #0:0 -> #0:0 (ape (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, wav, to 'from_ape.wav':
Metadata:
ISFT : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed= 233x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001474%
[sokoloff@sokoloff-home bug]$ ls -l from*.wav
-rw-rw-r-- 1 sokoloff sokoloff 5292074 дек 30 16:05 from_ape.wav
-rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 30 16:04 from_wav.wav
Why do you believe that the output files have to have the same length?
I expect that this is not how seeking works in general, or is it?
Theory
Files have a CD-quality, two-channel signed 16-bit Linear PCM sampled at 44,100 Hz. The audio bit rate for a Red Book audio CD is 1,411,200 bits per second or 176400 bytes per second; 2 channels × 44,100 samples per second per channel × 16 bits per sample. We extract 30 seconds, so audio data size must be 5292000 bytes (176400*30). The WAV header has a 78 bytes size, so the total size of file must be 5292078 bytes. For the from_wav.wav file is true, but from_ape.wav is smaller.
Practice
I did the same experiment for flac, wv, tta files.
[sokoloff@sokoloff-home bug]$ ls -l from*.wav -rw-rw-r-- 1 sokoloff sokoloff 5292074 дек 30 16:05 from_ape.wav -rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 30 16:20 from_flac.wav -rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 30 16:21 from_tta.wav -rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 30 16:04 from_wav.wav -rw-rw-r-- 1 sokoloff sokoloff 5292078 дек 30 16:21 from_wv.wav
All files have a size of 5292078, except the from_ape.wav.
comment:5 by , 7 years ago
Replying to sokoloff:
The WAV header has a 78 bytes size
(Not directly related to your report:)
Since this is not generally true, it makes sense to do such tests with raw pcm (.sw).
follow-up: 8 comment:6 by , 7 years ago
Since this is not generally true, it makes sense to do such tests with raw pcm (.sw).
No problem.
[sokoloff@sokoloff-home bug]$ for format in ape wav flac tta wv; do ./ffmpeg -y -accurate_seek -ss 5 -t 30 -i in.${format} -f s16le from_${format}.sw; done
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Input #0, ape, from 'in.ape':
Duration: 00:09:34.00, start: 0.000000, bitrate: 699 kb/s
Stream #0:0: Audio: ape (APE / 0x20455041), 44100 Hz, stereo, s16p
Stream mapping:
Stream #0:0 -> #0:0 (ape (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, s16le, to 'from_ape.sw':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed= 236x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'in.wav':
Metadata:
encoder : Lavf57.56.101
Duration: 00:09:34.00, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, s16le, to 'from_wav.sw':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.32e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Input #0, flac, from 'in.flac':
Duration: 00:09:34.00, start: 0.000000, bitrate: 704 kb/s
Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
Stream mapping:
Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, s16le, to 'from_flac.sw':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.79e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Input #0, tta, from 'in.tta':
Duration: 00:09:34.00, start: 0.000000, bitrate: 754 kb/s
Stream #0:0: Audio: tta, 44100 Hz, stereo, s16
Stream mapping:
Stream #0:0 -> #0:0 (tta (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, s16le, to 'from_tta.sw':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.37e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
ffmpeg version N-89656-g0c78b6a416 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.9.4 (Linaro GCC 4.9-2017.01) 20160726 (ROSA)
configuration:
libavutil 56. 7.100 / 56. 7.100
libavcodec 58. 9.100 / 58. 9.100
libavformat 58. 3.100 / 58. 3.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 8.100 / 7. 8.100
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
Input #0, wv, from 'in.wv':
Duration: 00:09:34.00, start: 0.000000, bitrate: 762 kb/s
Stream #0:0: Audio: wavpack, 44100 Hz, stereo, s16p
Stream mapping:
Stream #0:0 -> #0:0 (wavpack (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, s16le, to 'from_wv.sw':
Metadata:
encoder : Lavf58.3.100
Stream #0:0: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s
Metadata:
encoder : Lavc58.9.100 pcm_s16le
size= 5168kB time=00:00:30.00 bitrate=1411.2kbits/s speed=1.05e+03x
video:0kB audio:5168kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%
[sokoloff@sokoloff-home bug]$ ls -l from_*.sw
-rw-rw-r-- 1 sokoloff sokoloff 5291996 дек 30 17:05 from_ape.sw
-rw-rw-r-- 1 sokoloff sokoloff 5292000 дек 30 17:05 from_flac.sw
-rw-rw-r-- 1 sokoloff sokoloff 5292000 дек 30 17:05 from_tta.sw
-rw-rw-r-- 1 sokoloff sokoloff 5292000 дек 30 17:05 from_wav.sw
-rw-rw-r-- 1 sokoloff sokoloff 5292000 дек 30 17:05 from_wv.sw
comment:7 by , 7 years ago
Also, the program skips the first 4 bytes.
[sokoloff@sokoloff-home bug]$ hexdump from_wav.sw | head -n 1 0000000 4038 4038 f69a f69a b6fa b6fa 4d7c 4d7c [sokoloff@sokoloff-home bug]$ hexdump from_ape.sw | head -n 1 0000000 f69a f69a b6fa b6fa 4d7c 4d7c 3d5f 3d5f
comment:8 by , 7 years ago
Replying to sokoloff:
Since this is not generally true, it makes sense to do such tests with raw pcm (.sw).
No problem.
You cut the important part of my post...
comment:9 by , 7 years ago
| Keywords: | regression added |
|---|---|
| Priority: | normal → important |
| Reproduced by developer: | set |
This can be considered a regression, related to ticket #1675 and the following commits (in no particular order):
77d89a5b160127b5b60ba0310cb999077a22525d (not fixed)
91d4cfb8127f1de6c4ad173a30fffe584700046d (fixed)
8cd472d3f947a6233e7dc628f0dc71c74e62413a (kind of fixed)
4818388e6c219bf48fa93bf76ee6ab3dc3fb1e8f (not fixed)
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Test script