$ ffmpeg --help |grep vol -vol volume change audio volume (256=normal) 更改音量(256=正常) 按比例调整音量, 数值与256的比值, 就是调整音量的幅度. (x < 256) 就是降低, 128就是降低到1/2. $ ffmpeg -i trailer.mp4 -vol 128 tra128_low.mp4 $ ffmpeg -i trailer.mp4 -vol 64 tra64_low...
解决视频图像变形的问题 env->CallVoidMethod(instance, onSizeChange, width, height); env->CallVoidMethod(instance, createAudio, 44100, av_get_channel_layout_nb_channels(AV_CH_LAYOUT_STEREO)); LOGI("音频---> "); playTrack = env->GetMethodID(david_player, "playTrack", "([BI)V"); // 传...
I tried to run the ffpmeg app on Galaxy S with v. 2.3.3. Issue#1was withlibjniaudio- due to change of signature of android::AudioTrack::set(). Follows my patch for audiotrack.cpp, functionAndroidAudioTrack_set(): status_tret = NAME_NOT_FOUND;void*lptr_media =dlopen("libmedia.so",...
Hi, I tried to run the ffpmeg app on Galaxy S with v. 2.3.3. Issue #1 was with libjniaudio - due to change of signature of android::AudioTrack::set(). Follows my patch for audiotrack.cpp, function AndroidAudioTrack_set(): status_t ret = ...
Speed Change: Increase or decrease the playback speed without altering the pitch of the audio. Separate Video and Audio Inputs: Ability to load and play video and audio from separate sources. Audio Track Selection: Choose between different audio tracks if available. ...
changes the way releases are done. All major releases will now bump the version of the ABI. We plan to have a new major release each year. Another release-specific change is that deprecated APIs will be removed after 3 releases, upon the next major bump. This means that releases will be...
-acodec codec force audio codec ('copy' to copy stream) -vol volume change audio volume (256=normal) -newaudio add a new audio stream to the current output stream -alang code set the ISO 639 language code (3 letters) of the current aud io stream Advanced Audio options: -atag ...
-vol volume change audio volume (256=normal) Advanced global options: -cpuflags flags force specific cpu flags -benchmark add timings for benchmarking -benchmark_all add timings for each task -progress url write program-readable progress information ...
Node.js versions 10.13.0 and up are supported. Note (macOS only): due to an inadvertant low-level breaking change in libuv's process handling code, OpenGLis not supportedwhen running Node.js version 12.13.1 through to 13.6.0 on macOS. A fix has been released in Node.js version 13.7....
We are going to create a managed video encoding pipeline usingAWS Batchwith FFmpeg in container images. For example, you will be able to make a simple transmuxing operation, add an audio silent track, extract audio/video track, change video container file, concatenate video files, generat...