当遇到 "unable to choose an output format for 'ffmpeg'; use a standard extension for" 这样的错误时,通常意味着ffmpeg在尝试确定输出文件的格式时遇到了困难,因为它无法从文件名中推断出期望的格式。以下是一些可能的解决步骤和建议: 1. 确认ffmpeg支持的输出格式列表 ffmpeg支持多种输出格式,你可以通过运行以...
[AVFormatContext @ 000002f1af7e2b00] Unable to choose an output format for '–version'; use a standard extension for the filename or specify the format manually.[out#0 @ 000002f1af801540] Error initializing the muxer for –version: Invalid argumentError opening output file –version.Error op...
Select an output format from the right format library. You can keep the original MP4 format or choose a profile compatible with the final device/platform. Click the ‘Batch compression’ button at the bottom and slide to increase the compression ratio. In the conversion list, you can preview...
*/static int transcode_step(void){OutputStream *ost;InputStream *ist = NULL;int ret;//选择一个有效的输出流进行处理ost = choose_output();if (!ost) {if (got_eagain()) {reset_eagain();av_usleep(10000);return 0;}av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishin...
To start live streaming with FFmpeg, you have to download and install the software on your computer. You can choose the right installation method for your operating system from the three options above in this FFmpeg tutorial. At this point, you can also create a streaming channel on yourvideo...
valcommand=arrayOf("ffmpeg","-y","-i",inputPath,outputPath) Multi-process execution Since the bottom layer is temporarily unable to implement multithreading (after all, C is a process-oriented language), if you need to push the stream at the same time, it is impossible to execute other ...
Which component impacted? Decode, Encode Is it regression? Good in old configuration? No, this issue exist a long time What happened? unable to decode/encode a file What's the usage scenario when you are seeing the problem? Others What i...
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FFFormatContext 该结构体声明在 libavformat/internal.h:73,之前4.x的版本是没有这个结构体的,它是AVFormatContext更上一层的封装,保存了AVFormatContext的一些状态信息,具体其他成员是做什么用的后续碰到了再补充 typedefstructFFFormatContext{ /** * The public context. ...
x264 (要求采用msvc+msys 源码编译) 备注:最新版本x264需要修改FFmpeg源码libavcodec/libx264.c中x264_bit_depth为X264_BIT_DEPTH x265(要求采用msvc+msys 源码编译) fdk-aac(要求采用msvc+msys 源码编译) 备注:最新版本fdk-aac需要按照下面问题,进行FFmpeg源码libavcodec/libfdk-aacenc.c修改 ...