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Sur d’autres sites (11465)
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FFMpeg - add background music
22 août 2018, par jacky brownhere is what i have :
input1.avi - video that contain sounds.
input2.avi - video that doesn’t contain sounds.
music.mp3 - audio file.i want to add background music(music.mp3 file) to the video.
C:\input1.avi -i C:\music.mp3 -shortest -c:v copy -c:a copy C:\output1.avithen output1.avi is the same as input1 - movie with sounds but without the background music (music.mp3)
when i try to use the other file (video without sounds) :
C:\input2.avi -i C:\music.mp3 -shortest -c:v copy -c:a copy C:\output2.avithen output2.avi is the same as input2 + it have the background music.
so why input1 does not contain the background music ???
and how can i decrease or increase the volume of music.mp3 file ?thanks.
console output :
C:\motionbee\ffmpeg\bin>ffmpeg -i C:\input.avi
-i C:\music.mp3 -shortest -c:v copy -filter_
complex "[0:a]aformat=fltp:44100:stereo[0a];[1]aformat=fltp:44100:stereo,volume=
1.5[1a];[0a][1a]amix[a]" -map 0:v -map "[a]" -ac 2 C:\output1.avi
ffmpeg version N-78949-g6f5048f Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (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-amrwbenc --ena
ble-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable
-lzma --enable-decklink --enable-zlib
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 27.101 / 57. 27.101
libavformat 57. 28.100 / 57. 28.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 39.100 / 6. 39.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, avi, from 'C:\input.avi':
Metadata:
encoder : Lavf57.28.100
Duration: 00:02:05.76, start: 0.000000, bitrate: 450 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (XVID / 0x44495658), yuv420p, 720
x480 [SAR 1:1 DAR 3:2], 440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16p, 128 k
b/s
[mp3 @ 00000000005c8020] Skipping 0 bytes of junk at 32370.
Input #1, mp3, from 'C:\music.mp3':
Metadata:
title : Broadcast News Package - News Intro
artist : After Effects News Template
Duration: 00:01:57.89, start: 0.025057, bitrate: 194 kb/s
Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
Metadata:
encoder : Lavc56.26
File 'C:\output1.avi' already exists. Overwrite
? [y/N] y
Output #0, avi, to 'C:\output1.avi':
Metadata:
ISFT : Lavf57.28.100
Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x480 [SAR 1:1 DAR
3:2], q=2-31, 440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp3 (libmp3lame) (U[0][0][0] / 0x0055), 44100 Hz, stereo
, fltp (default)
Metadata:
encoder : Lavc57.27.101 libmp3lame
Stream mapping:
Stream #0:1 (mp3) -> aformat
Stream #1:0 (mp3) -> aformat
Stream #0:0 -> #0:0 (copy)
amix -> Stream #0:1 (libmp3lame)
Press [q] to stop, [?] for help
frame= 3118 fps=0.0 q=-1.0 Lsize= 6917kB time=00:02:05.76 bitrate= 450.6kbits
/s speed= 867x
video:6754kB audio:74kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.307944% -
FFMpeg - add background music
20 mars 2016, par jacky brownhere is what i have :
input1.avi - video that contain sounds.
input2.avi - video that doesn’t contain sounds.
music.mp3 - audio file.i want to add background music(music.mp3 file) to the video.
C:\input1.avi -i C:\music.mp3 -shortest -c:v copy -c:a copy C:\output1.avithen output1.avi is the same as input1 - movie with sounds but without the background music (music.mp3)
when i try to use the other file (video without sounds) :
C:\input2.avi -i C:\music.mp3 -shortest -c:v copy -c:a copy C:\output2.avithen output2.avi is the same as input2 + it have the background music.
so why input1 does not contain the background music ???
and how can i decrease or increase the volume of music.mp3 file ?thanks.
console output :
C:\motionbee\ffmpeg\bin>ffmpeg -i C:\input.avi
-i C:\music.mp3 -shortest -c:v copy -filter_
complex "[0:a]aformat=fltp:44100:stereo[0a];[1]aformat=fltp:44100:stereo,volume=
1.5[1a];[0a][1a]amix[a]" -map 0:v -map "[a]" -ac 2 C:\output1.avi
ffmpeg version N-78949-g6f5048f Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (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-amrwbenc --ena
ble-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable
-lzma --enable-decklink --enable-zlib
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 27.101 / 57. 27.101
libavformat 57. 28.100 / 57. 28.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 39.100 / 6. 39.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, avi, from 'C:\input.avi':
Metadata:
encoder : Lavf57.28.100
Duration: 00:02:05.76, start: 0.000000, bitrate: 450 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (XVID / 0x44495658), yuv420p, 720
x480 [SAR 1:1 DAR 3:2], 440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 44100 Hz, stereo, s16p, 128 k
b/s
[mp3 @ 00000000005c8020] Skipping 0 bytes of junk at 32370.
Input #1, mp3, from 'C:\music.mp3':
Metadata:
title : Broadcast News Package - News Intro
artist : After Effects News Template
Duration: 00:01:57.89, start: 0.025057, bitrate: 194 kb/s
Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 192 kb/s
Metadata:
encoder : Lavc56.26
File 'C:\output1.avi' already exists. Overwrite
? [y/N] y
Output #0, avi, to 'C:\output1.avi':
Metadata:
ISFT : Lavf57.28.100
Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x480 [SAR 1:1 DAR
3:2], q=2-31, 440 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream #0:1: Audio: mp3 (libmp3lame) (U[0][0][0] / 0x0055), 44100 Hz, stereo
, fltp (default)
Metadata:
encoder : Lavc57.27.101 libmp3lame
Stream mapping:
Stream #0:1 (mp3) -> aformat
Stream #1:0 (mp3) -> aformat
Stream #0:0 -> #0:0 (copy)
amix -> Stream #0:1 (libmp3lame)
Press [q] to stop, [?] for help
frame= 3118 fps=0.0 q=-1.0 Lsize= 6917kB time=00:02:05.76 bitrate= 450.6kbits
/s speed= 867x
video:6754kB audio:74kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.307944% -
using ffmpeg in XCode : Operation not permitted
23 octobre 2019, par NCrusherIn an effort to try to get to the bottom of the problem I discussed here, I decided to try to get what I was doing closer to the example I borrowed from when writing my code, which is described here.
So instead of formatting my filters in another methods, I tried to code them directly into the method to run the conversion. Unfortunately this results in a very repetitive method, because I have to handle the switch statement for the different conversion choices here as well.
So this is what my method looks like now :
func ffmpegConvert() {
guard let launchPath = Bundle.main.path(forResource: "ffmpeg", ofType: "") else { return }
do {
let conversionChoice = conversionOptionsPopup.indexOfSelectedItem
switch conversionChoice {
case 1 :
let convertTask: Process = Process()
convertTask.launchPath = launchPath
convertTask.arguments = [
"-y",
"-i", "\(inputFilePath)",
"-c:a", "libmp3lame",
"-ac", "1",
"-ar", "22050",
"-q:a", "9",
"\(outputFilePath)"
]
convertTask.standardInput = FileHandle.nullDevice
convertTask.launch()
convertTask.waitUntilExit()
case 2 :
let convertTask: Process = Process()
convertTask.launchPath = launchPath
convertTask.arguments = [
"-y",
"-i", "\(inputFilePath)",
"-c:a", "libmp3lame",
"-ac", "2",
"-ar", "44100",
"-q:a", "5",
"\(outputFilePath)"
]
convertTask.standardInput = FileHandle.nullDevice
convertTask.launch()
convertTask.waitUntilExit()
case 3 :
let convertTask: Process = Process()
convertTask.launchPath = launchPath
convertTask.arguments = [
"-y",
"-i", "\(inputFilePath)",
"-c:a", "libmp3lame",
"-ac", "1",
"-ar", "22050",
"-b:a", "32k",
"\(outputFilePath)"
]
convertTask.standardInput = FileHandle.nullDevice
convertTask.launch()
convertTask.waitUntilExit()
case 4 :
let convertTask: Process = Process()
convertTask.launchPath = launchPath
convertTask.arguments = [
"-y",
"-i", "\(inputFilePath)",
"-c:a", "flac",
"\(outputFilePath)"
]
convertTask.standardInput = FileHandle.nullDevice
convertTask.launch()
convertTask.waitUntilExit()
default :
let convertTask: Process = Process()
convertTask.launchPath = launchPath
convertTask.arguments = [
"-y",
"-i", "\(inputFilePath)",
"-c", "copy",
"\(outputFilePath)"
]
convertTask.standardInput = FileHandle.nullDevice
convertTask.launch()
convertTask.waitUntilExit()
}
}
}The good news is : I didn’t get the same errors I was getting before.
The bad news is : I got a different one. "Operation not permitted."
I assume this has something to do with the permissions granted to processes running in XCode when testing them out. Is there a way to get around it ?
My project is really dead in the water until I get the ffmpeg implementation worked out, because everything else I’m going to want it to do—such as rechaptering audiobooks and/or editing metadata—is going to rely upon ffmpeg as well. But I’ve only been doing this a few weeks and whatever is going on here is outside my ability to troubleshoot.
EDIT : I managed to get around this by turning the sandbox option in the permissions file off. But I’m leaving this question up because I’m not at all sure that was the right thing to do.
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