printf("Failed allocating output stream\n"); ret = AVERROR_UNKNOWN; goto end; } //复制AVCodecContext的设置 ret = avcodec_copy_context(out_stream->codec, in_stream->codec); if (ret < 0) { printf("Failed to copy context from input to output stream codec context\n"); goto end; } /...
//Create output AVStream according to input AVStream AVStream *in_stream = ifmt_ctx->streams[i]; AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec); if (!out_stream) { printf( "Failed allocating output stream\n"); ret = AVERROR_UNKNOWN; goto end; } /...
Stream#0:0->#0:0(aac(native)->mp3(libmp3lame)) Couldnotwriteheaderforoutputfile#0(incorrectcodecparameters?):Functionnotimplemented 1|walleye:/data/data/cn.zkhw.client/files# 1|walleye:/data/data/cn.zkhw.client/files# 1|walleye:/data/data/cn.zkhw.client/files# 1|walleye:/data/data/cn...
avformat_alloc_output_context2(&ofmt_ctx, NULL, ofmt_name, out_filename); if (!ofmt_ctx) { printf("Could not create output context\n"); ret = AVERROR_UNKNOWN; goto end; } stream_mapping_size = ifmt_ctx->nb_streams; stream_mapping = av_mallocz_array(stream_mapping_size, sizeof...
# 需要导入模块: import ffmpeg [as 别名]# 或者: from ffmpeg importoutput[as 别名]deftest__run__error(mocker, capture_stdout, capture_stderr):mocker.patch.object(ffmpeg._run,'compile', return_value=['ffmpeg']) stream = _get_complex_filter_example()withpytest.raises(ffmpeg.Error)asexcinfo...
printf("Failed allocating output stream\n"); ret =AVERROR_UNKNOWN;gotoend; }// 2.3 将当前输入流中的参数拷贝到输出流中ret = avcodec_parameters_copy(out_stream->codecpar, in_codecpar);if(ret <0) { printf("Failed to copy codec parameters\n");gotoend; ...
intstream_mapping_size=0; if(argc<3){ printf("usage: %s input output\n" "API example program to remux a media file with libavformat and libavcodec.\n" "The output format is guessed according to the file extension.\n" "\n",argv[0]); ...
fmt.Printf("Could not create output context\n") ret = libavutil.AVERROR_UNKNOWNgotoend } ofmt = ofmt_ctx.Oformatfori =0; i <int32(ifmt_ctx.NbStreams); i++ {//Create output AVStream according to input AVStreamin_stream := ifmt_ctx.GetStream(uint32(i)) ...
Stream#0:0 -> #0:0 (pcm_s16le (native) -> aac (native))Output#0, adts, to 'test.aac':Metadata: encoder:Lavf59.27.100 Stream#0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 529 kb/sMetadata: encoder:Lavc59.37.100 aacsize=2405kBtime=00:00:50.64bitrate=389.1kbits/sspeed=14.8x...
avformat_find_stream_info() 从输入源读取一段数据,尝试解码,以获取流信息 av_read_frame() 从输入源读取数据包 内存区作输出 2.1 用法 用法如示例中注释的步骤,如下: // @opaque : 是由用户提供的参数,指向用户数据// @buf : 作为FFmpeg的输出,此处FFmpeg已准备好buf中的数据// @buf_size: buf的大小/...