解决 在写文件头的时候,指定-flvflags no_duration_filesize参数 AVDictionary * opts = nullptr; av_dict_set(&opts, "flvflags", "no_duration_filesize", 0); int e = avformat_write_header(m_oFmtCtx, opts ? &opts : NULL); dimensions not set 问题 RTMP开始推流,打印错误提示:dimensions not ...
// 如果不设置分辨率,写头信息时会返回-22,同时控制台打印“dimensions not set”错误 // 设置了分辨率后写头信息时则会抛出段错误 // 初步估计,跟分辨率没有关系,是有哪些地方设置的不正确 // out_fmt_ctx->streams[0]->codecpar->width = width; ...
* the last filter described by filters_descr; since the last * filter output label is not specified, it is set to "out" by * default. */ // inputs变量意指buffersink_ctx滤镜的输入引脚(input pad) // sink缓冲区(buffersink_ctx滤镜)的输入必须连到filters_descr中最后 // 一个滤镜的输出;f...
if (avcodec_open2(c, codec, NULL) < 0) { fprintf(stderr, "could not open codec\n"); exit(1); } f = fopen(filename, "wb"); if (!f) { fprintf(stderr, "could not open %s\n", filename); exit(1); } picture = avcodec_alloc_frame(); if (!picture) { fprintf(stderr, ...
* demuxer must NOT set this. */int64_tstart_time;/** * Decoding: duration of the stream, in stream time base. * If a source file does not specify a duration, but does specify * a bitrate, this value will be estimated from bitrate and file size. ...
such as* image dimensions, format, etc.** Applications must not normally access the link structure directly.* Use the buffersrc and buffersink API instead.* In the future, access to the header may be reserved for filters* implementation.*/struct AVFilterLink {AVFilterContext *src; ///< sourc...
This code returns a FFMpeg\Media\Waveform instance. You can optionally pass dimensions as the first two arguments and an array of hex string colors for ffmpeg to use for the waveform, see dedicated documentation below for more information.
Not all filters will work this way and some need to be upgraded manually. $lowBitrate = (new X264)->setKiloBitrate(250); $midBitrate = (new X264)->setKiloBitrate(500); $highBitrate = (new X264)->setKiloBitrate(1000); $superBitrate = (new X264)->setKiloBitrate(1500); FFMpeg::...
* see avcodec_align_dimensions2(). Some filters and swscale can read * up to 16 bytes beyond the planes, if these filters are to be used, * then 16 extra bytes must be allocated. * * NOTE: Except for hwaccel formats, pointers not needed by the format ...
因为我在解决上一个问题时codehgfs下移Linux下,所configure产生config.mak里的路径还Make./configureffmpeg 3gp,mp4faad2bugFFmpeg/libavcodec/faad.c然后再重新编译或者修改libavcodec/faad.cThatmeansffmpegcouldnotloadfaacDecGetErrorMessagesymbolfromlibfaad.so.0library.Firstyoushouldcomfirmthatlibfaad.so.0libraryis...