date:20170131

Re: [FFmpeg-user] Weird crackling sound when muxing with an existing WAV file

2017-01-31 Thread Carl Eugen Hoyos

2017-01-31 22:13 GMT+01:00 Michael Heuberger
:

> Would love to, but my problem is that I am Deaf. So, I won't be able
> to test and reproduce this on my machine. Don't hear anything.

Then please provide an input sample, so I can test.

And please do not top-post here if you want my help.

Carl Eugen
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Re: [FFmpeg-user] issue with ffmpeg command

2017-01-31 Thread Carl Eugen Hoyos

2017-01-31 19:41 GMT+01:00 Rodrigo Macedo Aguiar
:

> I am remapping audio channels from a MXF file that contains a CC (closed 
> caption) data

Please provide such a sample.

Carl Eugen
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Re: [FFmpeg-user] Compile Error - libvpx

2017-01-31 Thread Lou

On Tue, 31 Jan 2017 14:40:07 +
Kent Scott  wrote:

> Trying to follow the instructions found here -> 
> https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#CompilationInstallation
> 
> Under the section for libvpx, when running make, I get the following error:
> 
> [CXX] test/level_test.cc.o
> [CXX] test/lpf_test.cc.o
> [CXX] test/minmax_test.cc.o
> [CXX] test/partial_idct_test.cc.o
> test/partial_idct_test.cc: In function 
> ‘int16_t::MaxSupportedCoeff(void (*)(const tran_low_t*, uint8_t*, 
> int, int))’:
> test/partial_idct_test.cc:63: error: address of overloaded function with no 
> contextual type information
> test/partial_idct_test.cc:64: error: address of overloaded function with no 
> contextual type information
> test/partial_idct_test.cc: In function 
> ‘int16_t::MinSupportedCoeff(void (*)(const tran_low_t*, uint8_t*, 
> int, int))’:
> test/partial_idct_test.cc:75: error: address of overloaded function with no 
> contextual type information
> test/partial_idct_test.cc:76: error: address of overloaded function with no 
> contextual type information
> test/partial_idct_test.cc: At global scope:
[...]
> test/partial_idct_test.cc:620: error: no matching function for call to 
> ‘make_tuple(void (*)(const int16_t*, tran_low_t*, int),  overloaded function type>, , TX_SIZE, 
> int, int, int)’
> make[1]: *** [test/partial_idct_test.cc.o] Error 1
> make: *** [.DEFAULT] Error 2
> 
> I am unsure why I would get this error. As an fyi, I am running on CentOS 6.8.

Works for me using current libvpx master branch. I can't duplicate this
libvpx issue (it's not an issue from FFmpeg). Although I didn't check
the git log to see if anything changed today you can try updating the
source and try compiling again:

https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#Updatelibvpx
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[FFmpeg-user] issue with ffmpeg command

2017-01-31 Thread Rodrigo Macedo Aguiar

Hi all,
I am remapping audio channels from a MXF file that contains a CC (closed 
caption) data but in the output file this information is being lost.
Can somebody please help me to figure out the correct command to keep this 
information in the file?

Details of the file:

ffmpeg.exe -i closed-caption-file.mxf
ffmpeg version N-79173-gbe746ae Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads 
--enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r 
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray 
--enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme 
--enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx 
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb 
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger 
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora 
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc 
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp 
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid 
--enable-libzimg --enable-lzma --enable-decklink --enable-zlib
  libavutil  55. 19.100 / 55. 19.100
  libavcodec 57. 32.100 / 57. 32.100
  libavformat57. 29.101 / 57. 29.101
  libavdevice57.  0.101 / 57.  0.101
  libavfilter 6. 40.102 /  6. 40.102
  libswscale  4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc54.  0.100 / 54.  0.100
Guessed Channel Layout for  Input Stream #0.1 : mono
Guessed Channel Layout for  Input Stream #0.2 : mono
Guessed Channel Layout for  Input Stream #0.3 : mono
Guessed Channel Layout for  Input Stream #0.4 : mono
Guessed Channel Layout for  Input Stream #0.5 : mono
Guessed Channel Layout for  Input Stream #0.6 : mono
Guessed Channel Layout for  Input Stream #0.7 : mono
Guessed Channel Layout for  Input Stream #0.8 : mono
Input #0, mxf, from 'closed-caption-file.mxf':
  Metadata:
uid : 70431900-4542-05c0-f017-080c
generation_uid  : 70431900-4542-05c0-f017-080c0001
company_name: Matrox Electronic
product_name: DSX
product_version : 3.00
product_uid : 060e2b34-0401-0103-0e06-012002010200
modification_date: 2016-10-26 18:21:34
material_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE00
timecode: 00:00:00;00
  Duration: 00:00:39.04, start: 0.00, bitrate: 60158 kb/s
Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt709), 1920x1080 [SAR 
1:1 DAR 16:9], 5 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 59.94 tbc
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:2: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:3: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:4: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:5: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:6: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:7: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:8: Audio: pcm_s24le, 48000 Hz, 1 channels, s32 (24 bit), 1152 kb/s
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
Stream #0:9: Data: none
Metadata:
  file_package_umid: 
0x060A2B340101010501010D00130052947134C1BE60670052947134C1BE01
  data_type   : vbi_vanc_smpte_436M



I am trying this command below:

ffmpeg.exe -i closed-caption-file.mxf -map 0:0 -map 0:1 -map 0:2 -map 0:3 -map 
0:4 -map 0:5 -map 0:5 -map 0:5 -map 0:5 -map 0:7 -map 0:8 -map 0:9 -c copy 
closed-caption-file-out.mxf

C:\ffmpeg>ffmpeg.exe -i closed-caption-file.mxf -map 0:0 -map 0:1 -map 0:2 -map 
0:3 -map 0:4 -map 0:5 -map 0:5 -map 0:5 -map 0:5 -map 0:7 -map 0:8 -map 0:9 -c 
copy closed-caption-file-out.mxf
ffmpeg version N-79173-gbe746ae Copyright (c) 2000-2016 the

[FFmpeg-user] Compile Error - libvpx

2017-01-31 Thread Kent Scott

Trying to follow the instructions found here -> 
https://trac.ffmpeg.org/wiki/CompilationGuide/Centos#CompilationInstallation

Under the section for libvpx, when running make, I get the following error:

[CXX] test/level_test.cc.o
[CXX] test/lpf_test.cc.o
[CXX] test/minmax_test.cc.o
[CXX] test/partial_idct_test.cc.o
test/partial_idct_test.cc: In function 
‘int16_t::MaxSupportedCoeff(void (*)(const tran_low_t*, uint8_t*, int, 
int))’:
test/partial_idct_test.cc:63: error: address of overloaded function with no 
contextual type information
test/partial_idct_test.cc:64: error: address of overloaded function with no 
contextual type information
test/partial_idct_test.cc: In function 
‘int16_t::MinSupportedCoeff(void (*)(const tran_low_t*, uint8_t*, int, 
int))’:
test/partial_idct_test.cc:75: error: address of overloaded function with no 
contextual type information
test/partial_idct_test.cc:76: error: address of overloaded function with no 
contextual type information
test/partial_idct_test.cc: At global scope:
test/partial_idct_test.cc:418: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:420: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:422: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:424: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:426: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:428: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:430: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:432: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:434: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:436: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:438: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:440: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:579: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:581: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:583: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:585: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:587: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:589: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:591: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:593: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:595: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:597: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:599: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:601: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:612: error: no matching function for call to 
‘make_tuple(void (*)(const int16_t*, tran_low_t*, int), , , TX_SIZE, int, int, int)’
test/partial_idct_test.cc:614:

Re: [FFmpeg-user] Weird crackling sound when muxing with an existing WAV file

2017-01-31 Thread Michael Heuberger


Thanks for your offer Carl.

Would love to, but my problem is that I am Deaf. So, I won't be able to 
test and reproduce this on my machine. Don't hear anything. It is just 
feedback from www.videomail.io clients ...


I could send the command with PCM files alone for someone else to test 
the converted audio alone. Anyone interested to assist me here? Maybe 
you Carl? Happy to donate for few beers :)


Cheers
Michael

On 31/01/17 22:54, Carl Eugen Hoyos wrote:

2017-01-30 21:53 GMT+01:00 Michael Heuberger
:


ffmpeg version 3.0.5-0ubuntu0.16.10.1 Copyright (c) 2000-2016 the FFmpeg

Please test current FFmpeg git head.

Can you find out if the issue is also reproducible if you only convert audio
(no video input, no video output)?
What about mp2, ac3 or aac?

Please avoid top-posting here.

Thank you, Carl Eugen
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--

Binary Kitchen
Michael Heuberger
1/33 Parrish Road
Sandringham
Auckland 1025
(New Zealand)

Mobile (text only) ...  +64 21 261 89 81
Email   mich...@binarykitchen.com
Website ..  http://www.binarykitchen.com

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Re: [FFmpeg-user] Convert MPEG-PS progressive to Interlaced

2017-01-31 Thread Carl Eugen Hoyos

2017-01-31 16:14 GMT+01:00 Andy Furniss :

>>> ffmpeg.exe -y -i INPUT_FILE -c:v mpeg2video -flags +ildct+ilme -vf
>>> scale=interl=1,tinterlace=merge,fieldorder=tff OUTPUT_FILE

> Sorry for doubting - should have tried first, so this command will
> produce 422 from 420. But will also result in double height on the
> stream I tested with (= the field coded stream I linked to earlier).

It doesn't for him because he is using another kind of input stream.
Please try to avoid the guesses here, just request console output
(and / or input samples).

Carl Eugen
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Re: [FFmpeg-user] Convert MPEG-PS progressive to Interlaced

2017-01-31 Thread Andy Furniss


Andy Furniss wrote:

kumar vikram wrote:



But the op specifically asked for field-encoding.



Note to everybody (including me): Please try not to guess - if
the op still needs the information, he can post his command line
and console output and we can try to answer.


ffmpeg.exe -y -i INPUT_FILE -c:v mpeg2video -flags +ildct+ilme -vf
scale=interl=1,tinterlace=merge,fieldorder=tff OUTPUT_FILE


You forgot the output - also I doubt this would make 422 from 420 so
it's not the command that made the analyzed stream?


Sorry for doubting - should have tried first, so this command will
produce 422 from 420. But will also result in double height on the
stream I tested with (= the field coded stream I linked to earlier).
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Re: [FFmpeg-user] Convert MPEG-PS progressive to Interlaced

2017-01-31 Thread Andy Furniss


kumar vikram wrote:



But the op specifically asked for field-encoding.



Note to everybody (including me): Please try not to guess - if the
op still needs the information, he can post his command line and
console output and we can try to answer.


ffmpeg.exe -y -i INPUT_FILE -c:v mpeg2video -flags +ildct+ilme -vf
scale=interl=1,tinterlace=merge,fieldorder=tff OUTPUT_FILE


You forgot the output - also I doubt this would make 422 from 420 so
it's not the command that made the analyzed stream?

If your input is mpeg2 you shouldn't need tinterlace=merge in addition
Paul said to use weave and he is a dev so knows.

You would only really need to weave if the input was fields and the
output of ffmpeg mpeg2decoder will always be weaved.

If you do need to convert 420 to 422 then scale=interl=1 is correct, but
not quite right - since ilpack was removed I don't know how you would be
able to get it perfect. The difference is hard to see and to do with
chroma subsampling positions being different for interlaced and progressive.



(mpeg2 video is not necessarily frame-based.)

Okay I think I have left too much scope for confusion here. So let me
just clarify a bit.

Attached two snapshots from elecard stream analyzer.

1. ps_interlaced.png - is for the the I-P filed based interlaced
stream. 2. ps_ffmpeg_output.png - is for the converted stream using
above command.

The rect marked in red is the point which is the problem.

As per my understanding of the PS spec(IEC-13818-2), if
picture_structure is set to 3, it means frame picture.


I didn't read the spec but 3 may well be correct as frame coded
interlaced is what mpeg2 interlaced streams often are. You can see it's
not progressive and the field dominance of the weave is indicated.


As you can see in ps_interlaced.png, the field picture_structure is
set to either 1 or 2 which means top or bottom field.

I have tried the above command and several other options which I
could found from google.

Hope someone could provide me the right solution (if any such
solution exists with ffmpeg) :)


As has been said ffmpeg will not make field coded interlaced but will
make frame coded interlaced.
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[FFmpeg-user] does anyone have a working ffplay ffmpeg with SDL_mixer and SDL2 ?

2017-01-31 Thread jeroen clarysse

hello everyone

I am trying to get my ffmpeg/SDL2 code running with SDL mixer since I need more 
audio than only the ffmpeg streams. I manager to update the ffplay.c file to 
make it work in my own application, but since my app uses Mix_OpenAudio(), the 
subsequent calls to SDL_OpenAudio() don’t work : they give an error “device 
already open”. Even replacing the SDL_OpenAudio with SDL_OpenAudioDevice() 
doesn’t help. The device does open in that case, but no audio is played.

I have found this code :

http://sdl.5483.n7.nabble.com/SDL-mixer-question-td483.html#a486


but that is rather high-level and I was hoping someone might have a patched 
version of ffplay.c which uses SDL_mixer ?


many many many thanks in advance !

jeroen
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Re: [FFmpeg-user] Question about mp3 bit rate mode

2017-01-31 Thread 桃源老師

Hello DopeLabs-san, 

Thanks for your reply.

> 2017/01/31 午後8:41、DopeLabs のメール:
> 
> In your earlier console output for both commands...
> 
>>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 128x 
> 
>>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 134x
> 
> What method are you using to 'verify' the length?

I used macOS's FInder, Windows10's explorer, Windows10's groove music, macOS's 
iTunes, Windows10's sinkusuperlite, mediainfo, and mpg123.  Then macOS's iTunes 
and mpg123 show correct length.  Also, mediainfo does not show duration for "$ 
ffmpeg -f lavfi -i sine=d=300 duration_VBR.mp3 command".

> What is the ffprobe output for each of those files?

With $ ffmpeg -f lavfi -i sine=d=300 duration_VBR.mp3 command:

$ ffprobe -i duration_VBR.mp3 
ffprobe version N-83152-gf7e9275 Copyright (c) 2007-2017 the FFmpeg developers
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  configuration: --prefix=/Volumes/ffmpeg_compile --pkg-config-flags=--static 
--disable-ffserver --enable-gpl --enable-version3 --enable-nonfree 
--enable-libmp3lame --enable-libfdk-aac --enable-libvo-amrwbenc 
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvorbis 
--enable-libspeex --enable-libopus --enable-libgsm --enable-libtwolame 
--enable-libsoxr --enable-libwavpack --enable-libmodplug --enable-libopenjpeg 
--enable-libwebp --enable-libtheora --enable-libx264 --enable-libopenh264 
--enable-libx265 --enable-libxvid --enable-libvpx --enable-libxavs 
--enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-libass 
--enable-libbluray --enable-libvidstab --enable-libschroedinger 
--enable-libsnappy --enable-libzmq
  libavutil  55. 43.100 / 55. 43.100
  libavcodec 57. 74.100 / 57. 74.100
  libavformat57. 62.100 / 57. 62.100
  libavdevice57.  2.100 / 57.  2.100
  libavfilter 6. 69.100 /  6. 69.100
  libswscale  4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc54.  2.100 / 54.  2.100
Input #0, mp3, from 'duration_VBR.mp3':
  Metadata:
encoder : Lavf57.62.100
  Duration: 00:05:00.04, start: 0.025057, bitrate: 64 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, mono, s16p, 64 kb/s



With $ ffmpeg -f lavfi -i sine=d=300 -write_xing 0 duration.mp3 command:

$ ffprobe -i duration_CBR.mp3 
ffprobe version N-83152-gf7e9275 Copyright (c) 2007-2017 the FFmpeg developers
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
  configuration: --prefix=/Volumes/ffmpeg_compile --pkg-config-flags=--static 
--disable-ffserver --enable-gpl --enable-version3 --enable-nonfree 
--enable-libmp3lame --enable-libfdk-aac --enable-libvo-amrwbenc 
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvorbis 
--enable-libspeex --enable-libopus --enable-libgsm --enable-libtwolame 
--enable-libsoxr --enable-libwavpack --enable-libmodplug --enable-libopenjpeg 
--enable-libwebp --enable-libtheora --enable-libx264 --enable-libopenh264 
--enable-libx265 --enable-libxvid --enable-libvpx --enable-libxavs 
--enable-libfreetype --enable-fontconfig --enable-libfribidi --enable-libass 
--enable-libbluray --enable-libvidstab --enable-libschroedinger 
--enable-libsnappy --enable-libzmq
  libavutil  55. 43.100 / 55. 43.100
  libavcodec 57. 74.100 / 57. 74.100
  libavformat57. 62.100 / 57. 62.100
  libavdevice57.  2.100 / 57.  2.100
  libavfilter 6. 69.100 /  6. 69.100
  libswscale  4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc54.  2.100 / 54.  2.100
[mp3 @ 0x7fa2fc804e00] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'duration_CBR.mp3':
  Metadata:
encoder : Lavf57.62.100
  Duration: 00:05:00.04, start: 0.00, bitrate: 64 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, mono, s16p, 64 kb/s



Best Regards,

// Miya aka. TougenRoushi

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Re: [FFmpeg-user] Question about mp3 bit rate mode

2017-01-31 Thread DopeLabs

In your earlier console output for both commands...

>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 128x 

>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 134x

What method are you using to 'verify' the length?

What is the ffprobe output for each of those files?



> On Jan 30, 2017, at 8:23 13AM, 桃源老師  wrote:
> 
> In Addition...
> 
>> 2017/01/30 11:54 A.M. 桃源老師  wrote:
>> 
>> Hello ffmpeg experts...
>> 
>> I have question about mp3 bit rate mode.  
>> 
>> When I run the following command, the resulting duration.mp3 is VBR.  I have 
>> confirmed it's bit rate mode with mediainfo, mpg123, and SinkuSuperLite (on 
>> Windows).
>> 
>> $ ffmpeg -f lavfi -i sine=d=300 duration.mp3
>> ffmpeg version N-83152-gf7e9275 Copyright (c) 2000-2017 the FFmpeg developers
>> built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
>> configuration: --prefix=/Volumes/ffmpeg_compile --pkg-config-flags=--static 
>> --disable-ffserver --enable-gpl --enable-version3 --enable-nonfree 
>> --enable-libmp3lame --enable-libfdk-aac --enable-libvo-amrwbenc 
>> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvorbis 
>> --enable-libspeex --enable-libopus --enable-libgsm --enable-libtwolame 
>> --enable-libsoxr --enable-libwavpack --enable-libmodplug 
>> --enable-libopenjpeg --enable-libwebp --enable-libtheora --enable-libx264 
>> --enable-libopenh264 --enable-libx265 --enable-libxvid --enable-libvpx 
>> --enable-libxavs --enable-libfreetype --enable-fontconfig 
>> --enable-libfribidi --enable-libass --enable-libbluray --enable-libvidstab 
>> --enable-libschroedinger --enable-libsnappy --enable-libzmq
>> libavutil  55. 43.100 / 55. 43.100
>> libavcodec 57. 74.100 / 57. 74.100
>> libavformat57. 62.100 / 57. 62.100
>> libavdevice57.  2.100 / 57.  2.100
>> libavfilter 6. 69.100 /  6. 69.100
>> libswscale  4.  3.101 /  4.  3.101
>> libswresample   2.  4.100 /  2.  4.100
>> libpostproc54.  2.100 / 54.  2.100
>> Input #0, lavfi, from 'sine=d=300':
>> Duration: N/A, start: 0.00, bitrate: 705 kb/s
>>   Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
>> Output #0, mp3, to 'duration.mp3':
>> Metadata:
>>   TSSE: Lavf57.62.100
>>   Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, mono, s16p
>>   Metadata:
>> encoder : Lavc57.74.100 libmp3lame
>> Stream mapping:
>> Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))
>> Press [q] to stop, [?] for help
>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 128x
>> video:0kB audio:2344kB subtitle:0kB other streams:0kB global headers:0kB 
>> muxing overhead: 0.009457%
>> 
>> And when I run the following command, the resulting duration.mp3 is CBR.  
>> Confirmed with same program as above.
>> 
>> $ ffmpeg -f lavfi -i sine=d=300 -write_xing 0 duration.mp3
>> ffmpeg version N-83152-gf7e9275 Copyright (c) 2000-2017 the FFmpeg developers
>> built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
>> configuration: --prefix=/Volumes/ffmpeg_compile --pkg-config-flags=--static 
>> --disable-ffserver --enable-gpl --enable-version3 --enable-nonfree 
>> --enable-libmp3lame --enable-libfdk-aac --enable-libvo-amrwbenc 
>> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvorbis 
>> --enable-libspeex --enable-libopus --enable-libgsm --enable-libtwolame 
>> --enable-libsoxr --enable-libwavpack --enable-libmodplug 
>> --enable-libopenjpeg --enable-libwebp --enable-libtheora --enable-libx264 
>> --enable-libopenh264 --enable-libx265 --enable-libxvid --enable-libvpx 
>> --enable-libxavs --enable-libfreetype --enable-fontconfig 
>> --enable-libfribidi --enable-libass --enable-libbluray --enable-libvidstab 
>> --enable-libschroedinger --enable-libsnappy --enable-libzmq
>> libavutil  55. 43.100 / 55. 43.100
>> libavcodec 57. 74.100 / 57. 74.100
>> libavformat57. 62.100 / 57. 62.100
>> libavdevice57.  2.100 / 57.  2.100
>> libavfilter 6. 69.100 /  6. 69.100
>> libswscale  4.  3.101 /  4.  3.101
>> libswresample   2.  4.100 /  2.  4.100
>> libpostproc54.  2.100 / 54.  2.100
>> Input #0, lavfi, from 'sine=d=300':
>> Duration: N/A, start: 0.00, bitrate: 705 kb/s
>>   Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
>> File 'duration.mp3' already exists. Overwrite ? [y/N] y
>> Output #0, mp3, to 'duration.mp3':
>> Metadata:
>>   TSSE: Lavf57.62.100
>>   Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, mono, s16p
>>   Metadata:
>> encoder : Lavc57.74.100 libmp3lame
>> Stream mapping:
>> Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))
>> Press [q] to stop, [?] for help
>> size=2344kB time=00:05:00.01 bitrate=  64.0kbits/s speed= 134x
>> video:0kB audio:2344kB subtitle:0kB other streams:0kB global headers:0kB 
>> muxing overhead: 0.001875%
> 
> The command which produces VBR mp3 file, "$ ffmpeg -f lavfi -i sine=d=300 
> duration.mp3"'s duration is

Re: [FFmpeg-user] Weird crackling sound when muxing with an existing WAV file

2017-01-31 Thread Carl Eugen Hoyos

2017-01-30 21:53 GMT+01:00 Michael Heuberger
:

> ffmpeg version 3.0.5-0ubuntu0.16.10.1 Copyright (c) 2000-2016 the FFmpeg

Please test current FFmpeg git head.

Can you find out if the issue is also reproducible if you only convert audio
(no video input, no video output)?
What about mp2, ac3 or aac?

Please avoid top-posting here.

Thank you, Carl Eugen
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Re: [FFmpeg-user] Looping input audio and video with ffmpeg

2017-01-31 Thread Carl Eugen Hoyos

2017-01-30 11:52 GMT+01:00 Nabajit Deka :

> ffmpeg -stream_loop -1  -vcodec rawvideo  -pix_fmt yuv420p  -s 1280x720 -r
> 6/1000  -i /media/test.yuv  -f s16le -ar 48k -ac 2  -i /media/test.pcm
> -f decklink  'DeckLink Duo (2)'

(Complete, uncut console output missing.)

You first have to create a file containing audio and video (of the same length).

Carl Eugen
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Re: [FFmpeg-user] Weird crackling sound when muxing with an existing WAV file

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[FFmpeg-user] does anyone have a working ffplay ffmpeg with SDL_mixer and SDL2 ?

Re: [FFmpeg-user] Question about mp3 bit rate mode

Re: [FFmpeg-user] Question about mp3 bit rate mode

Re: [FFmpeg-user] Weird crackling sound when muxing with an existing WAV file

Re: [FFmpeg-user] Looping input audio and video with ffmpeg

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