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SPIP - plugins - embed code - Exemple
2 septembre 2013, par
Mis à jour : Septembre 2013
Langue : français
Type : Image
Autres articles (111)
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HTML5 audio and video support
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Grab audio samples with ffmpeg and C, error with official example code
31 août 2020, par nji9For dev with mingw-w64 I'm using ffmpeg v. 4.3.1. and also the latest Git version of ffmpeg (Zeranoe's Windows 64 builds).


I get "strange" problems when running the official example code for decoding audio


https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/decode_audio.c


MP3DirectCut(Lib-bass).mp3


http://www.mediafire.com/file/ozmjjcpwyhhdnr7/MP3DirectCut(Lib-bass).mp3/file


Generates pcm, but outputs :


"Warning: the sample format the decoder produced is planar (s16p).
This example will output the first channel only."



But the output pcm has both channels !??


When recoding the above mp3 to wav with ffmpeg (4.1.4, no error message)


http://www.mediafire.com/file/gcq7ryg43pd57q5/ffmpeg4.1.4.wav/file


and also when recoding the latter to mp3 again


http://www.mediafire.com/file/ij865dkrprn2lta/ffmpeg4.1.4_recode.mp3/file


the example code breaks and produces these error messages :


avcodec_send_packet ()
from within:
"[mp2 @ <someaddress>] Header missing"
and returns error code -1094995529
(= "Invalid data found when processing input")
</someaddress>


It produces that error message for literally all other formats
I tried, and also when written with another editor (Audition 3.0).
But all the files play and show fine on all programs I have.


I'm at a lost at this point.
What is going on and wrong here ?


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cocoa pods minimum version error ffmpeg kit flutter
4 février 2024, par RubénSo, I recently started working on Mac and I wanted to build my Flutter App, so I installed CocoaPods and started searching for a solution, but I couldn't find any that solved my problem, any help appreciated.


Tried to manage my dependencies version on my pubspec.yaml but didn't solve my problem.


My final thought is to replace the ffmpeg dependency version on the pod file (because its being set automatically) but I don't know how to do it.


This is my log output :


CocoaPods' output:
↳
 Preparing

 Analyzing dependencies

 Inspecting targets to integrate
 Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)
 Using `ARCHS` setting to build architectures of target `Pods-RunnerTests`: (``)

 Fetching external sources
 -> Fetching podspec for `FlutterMacOS` from `Flutter/ephemeral`
 -> Fetching podspec for `ffmpeg_kit_flutter` from `Flutter/ephemeral/.symlinks/plugins/ffmpeg_kit_flutter/macos`
 -> Fetching podspec for `path_provider_foundation` from `Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin`

 Resolving dependencies of `Podfile`
 CDN: trunk Relative path: CocoaPods-version.yml exists! Returning local because checking is only performed in repo update
 CDN: trunk Relative path: all_pods_versions_c_0_4.txt exists! Returning local because checking is only performed in repo update
 CDN: trunk Relative path: Specs/c/0/4/Flutter/3.13.0/Flutter.podspec.json exists! Returning local because checking is only performed in repo update
 [!] CocoaPods could not find compatible versions for pod "ffmpeg_kit_flutter/https":
 In Podfile:
 ffmpeg_kit_flutter (from `Flutter/ephemeral/.symlinks/plugins/ffmpeg_kit_flutter/macos`) was resolved to 6.0.3, which depends on
 ffmpeg_kit_flutter/https (= 6.0.3)

 Specs satisfying the `ffmpeg_kit_flutter/https (= 6.0.3)` dependency were found, but they required a higher minimum deployment target.

 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:317:in `raise_error_unless_state'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:299:in `block in unwind_for_conflict'
 :90:in `tap'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:297:in `unwind_for_conflict'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:682:in `attempt_to_activate'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:254:in `process_topmost_state'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:182:in `resolve'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/molinillo-0.8.0/lib/molinillo/resolver.rb:43:in `resolve'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/resolver.rb:94:in `resolve'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer/analyzer.rb:1082:in `block in resolve_dependencies'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/user_interface.rb:64:in `section'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer/analyzer.rb:1080:in `resolve_dependencies'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer/analyzer.rb:125:in `analyze'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer.rb:422:in `analyze'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer.rb:244:in `block in resolve_dependencies'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/user_interface.rb:64:in `section'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer.rb:243:in `resolve_dependencies'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/installer.rb:162:in `install!'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/command/install.rb:52:in `run'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/lib/cocoapods/command.rb:52:in `run'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/gems/cocoapods-1.14.3/bin/pod:55:in `<top>'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/bin/pod:25:in `load'
 /opt/homebrew/Cellar/cocoapods/1.14.3_1/libexec/bin/pod:25:in `<main>'

Exception: Error running pod install
</main></top>


This is My Mac Podfile :


ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
 'Debug' => :debug,
 'Profile' => :release,
 'Release' => :release,
}

def flutter_root
 generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
 unless File.exist?(generated_xcode_build_settings_path)
 raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
 end

 File.foreach(generated_xcode_build_settings_path) do |line|
 matches = line.match(/FLUTTER_ROOT\=(.*)/)
 return matches[1].strip if matches
 end
 raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
 use_frameworks!
 use_modular_headers!

 flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
 target 'RunnerTests' do
 inherit! :search_paths
 end
end

post_install do |installer|
 installer.pods_project.targets.each do |target|
 flutter_additional_ios_build_settings(target)
 end
end