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• Nginx rtmp com saida UTP multicast [closed]

  31 mars 2021, par Ralph Danezin

  Bom Dia
Tenho servidor nginx rmtp
Estou precisando que esse script tenha uma saida para udp 239.192.48.75 multicast. Como poderiam me ajudar ?

  


• Ffmpeg error "avcodec_send_frame" return "invalid argument"

  17 octobre 2023, par Paulo Coutinho

  I have a problem in function avcodec_send_frame throwing error Error sending frame for encoding: Invalid argument (-22). I already search, check, recheck and nothing. It is near the ffmpeg examples. Can anyone help me ? Thanks.

  


  This is my code :

  


  static void callbackAddSubtitle(const Message &m, const Response r)
{
    try
    {
        av_log_set_level(AV_LOG_DEBUG);

        spdlog::debug("[Mapping :: callbackAddSubtitle] Adding subtitle...");

        auto inputOpt = m.get("input");
        auto outputOpt = m.get("output");

        if (!inputOpt.has_value() || !outputOpt.has_value())
        {
            r(std::string{"INVALID-PARAMS"});
            return;
        }

        const std::string &input = inputOpt.value();
        const std::string &output = outputOpt.value();

        // initialize input
        spdlog::debug("[Mapping :: callbackAddSubtitle] Initializing input video...");

        AVFormatContext *inputFormatCtx = avformat_alloc_context();
        if (avformat_open_input(&inputFormatCtx, input.c_str(), nullptr, nullptr) != 0)
        {
            spdlog::error("Failed to open input");
            r(std::string{"ERROR-OPEN-INPUT"});
            return;
        }

        if (avformat_find_stream_info(inputFormatCtx, nullptr) < 0)
        {
            spdlog::error("Failed to find stream information");
            avformat_close_input(&inputFormatCtx);
            r(std::string{"ERROR-FIND-STREAM"});
            return;
        }

        int videoStreamIndex = av_find_best_stream(inputFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, nullptr, 0);
        if (videoStreamIndex < 0)
        {
            spdlog::error("Could not find a video stream");
            r(std::string{"ERROR-FIND-VIDEO-STREAM"});
            return;
        }

        AVRational timeBase = inputFormatCtx->streams[videoStreamIndex]->time_base;

        AVCodecParameters *inputCodecPar = inputFormatCtx->streams[videoStreamIndex]->codecpar;
        const AVCodec *inputCodec = avcodec_find_decoder(inputCodecPar->codec_id);
        AVCodecContext *inputCodecCtx = avcodec_alloc_context3(inputCodec);

        avcodec_parameters_to_context(inputCodecCtx, inputCodecPar);
        avcodec_open2(inputCodecCtx, inputCodec, nullptr);

        // initialize input audio
        spdlog::debug("[Mapping :: callbackAddSubtitle] Initializing input audio...");

        int audioStreamIndex = av_find_best_stream(inputFormatCtx, AVMEDIA_TYPE_AUDIO, -1, -1, nullptr, 0);
        if (audioStreamIndex < 0)
        {
            spdlog::error("Could not find an audio stream");
            r(std::string{"ERROR-FIND-AUDIO-STREAM"});
            return;
        }

        AVCodecParameters *inputAudioCodecPar = inputFormatCtx->streams[audioStreamIndex]->codecpar;
        const AVCodec *inputAudioCodec = avcodec_find_decoder(inputAudioCodecPar->codec_id);
        AVCodecContext *inputAudioCodecCtx = avcodec_alloc_context3(inputAudioCodec);

        avcodec_parameters_to_context(inputAudioCodecCtx, inputAudioCodecPar);
        avcodec_open2(inputAudioCodecCtx, inputAudioCodec, nullptr);

        // initialize output video
        spdlog::debug("[Mapping :: callbackAddSubtitle] Initializing output video...");

        AVFormatContext *outputFormatCtx = nullptr;
        avformat_alloc_output_context2(&outputFormatCtx, nullptr, nullptr, output.c_str());
        AVStream *outputStream = avformat_new_stream(outputFormatCtx, nullptr);

        AVCodecContext *outputCodecCtx = avcodec_alloc_context3(inputCodec);
        avcodec_parameters_to_context(outputCodecCtx, inputCodecPar);
        int retOutVideo = avcodec_open2(outputCodecCtx, inputCodec, nullptr);

        if (retOutVideo < 0)
        {
            char err[AV_ERROR_MAX_STRING_SIZE];
            av_make_error_string(err, AV_ERROR_MAX_STRING_SIZE, retOutVideo);
            spdlog::error("Failed to initialize output video: {}", err);
            r(std::string{"ERROR-INIT-OUTPUT-VIDEO"});
            return;
        }

        outputStream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
        outputStream->codecpar->codec_id = inputCodec->id;
        avcodec_parameters_from_context(outputStream->codecpar, outputCodecCtx);

        if (!(outputFormatCtx->oformat->flags & AVFMT_NOFILE))
        {
            avio_open(&outputFormatCtx->pb, output.c_str(), AVIO_FLAG_WRITE);
        }

        const char *pixelFormatName = getPixelFormatName(outputCodecCtx->pix_fmt);
        spdlog::debug("Pixel Format: {}", pixelFormatName);

        // initialize output audio
        spdlog::debug("[Mapping :: callbackAddSubtitle] Initializing output audio...");

        AVStream *outputAudioStream = avformat_new_stream(outputFormatCtx, nullptr);
        AVCodecContext *outputAudioCodecCtx = avcodec_alloc_context3(inputAudioCodec);
        avcodec_parameters_to_context(outputAudioCodecCtx, inputAudioCodecPar);
        int retOutAudio = avcodec_open2(outputAudioCodecCtx, inputAudioCodec, nullptr);

        if (retOutAudio < 0)
        {
            char err[AV_ERROR_MAX_STRING_SIZE];
            av_make_error_string(err, AV_ERROR_MAX_STRING_SIZE, retOutAudio);
            spdlog::error("Failed to initialize output audio: {}", err);
            r(std::string{"ERROR-INIT-OUTPUT-AUDIO"});
            return;
        }

        outputAudioStream->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
        outputAudioStream->codecpar->codec_id = inputAudioCodec->id;
        avcodec_parameters_from_context(outputAudioStream->codecpar, outputAudioCodecCtx);

        // initialize filters
        spdlog::debug("[Mapping :: callbackAddSubtitle] Initializing filters...");

        AVFilterGraph *filterGraph = avfilter_graph_alloc();
        if (!filterGraph)
        {
            spdlog::error("Failed to allocate filter graph");
            r(std::string{"ERROR-FILTER-GRAPH"});
            return;
        }

        AVFilterContext *bufferSinkCtx;
        AVFilterContext *bufferSrcCtx;

        const AVFilter *bufferSink = avfilter_get_by_name("buffersink");
        const AVFilter *bufferSrc = avfilter_get_by_name("buffer");

        // input filter
        char filterInArgs[512];
        snprintf(filterInArgs, sizeof(filterInArgs), "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", inputCodecPar->width, inputCodecPar->height, inputCodecCtx->pix_fmt, timeBase.num, timeBase.den, inputCodecCtx->sample_aspect_ratio.num, inputCodecCtx->sample_aspect_ratio.den);

        spdlog::debug("[Mapping :: callbackAddSubtitle] Buffer src args: {}", filterInArgs);

        int retFilterIn = avfilter_graph_create_filter(&bufferSrcCtx, bufferSrc, "in", filterInArgs, nullptr, filterGraph);
        if (retFilterIn < 0)
        {
            char err[AV_ERROR_MAX_STRING_SIZE];
            av_make_error_string(err, AV_ERROR_MAX_STRING_SIZE, retFilterIn);
            spdlog::error("Failed to create bufferSrcCtx: {}", err);
            r(std::string{"ERROR-CREATE-FILTER-SRC"});
            return;
        }

        // output filter
        int retFilterOut = avfilter_graph_create_filter(&bufferSinkCtx, bufferSink, "out", nullptr, nullptr, filterGraph);

        if (retFilterOut < 0)
        {
            char err[AV_ERROR_MAX_STRING_SIZE];
            av_make_error_string(err, AV_ERROR_MAX_STRING_SIZE, retFilterOut);
            spdlog::error("Failed to create bufferSinkCtx: {}", err);
            r(std::string{"ERROR-CREATE-FILTER-SINK"});
            return;
        }

        enum AVPixelFormat pix_fmts[] = {AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE};
        av_opt_set_int_list(bufferSinkCtx, "pix_fmts", pix_fmts, AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);

        // add filters to graph and link them
        const char *filterSpec = "drawtext=text='Legenda Adicionada Automaticamente Via FFMPEG e C++': fontcolor=yellow: bordercolor=black: fontfile='/Users/paulo/Downloads/roboto/Roboto-Black.ttf'";
        const AVFilter *filter = avfilter_get_by_name("drawtext");

        AVFilterInOut *outputs = avfilter_inout_alloc();
        AVFilterInOut *inputs = avfilter_inout_alloc();

        outputs->name = av_strdup("in");
        outputs->filter_ctx = bufferSrcCtx;
        outputs->pad_idx = 0;
        outputs->next = nullptr;
        inputs->name = av_strdup("out");
        inputs->filter_ctx = bufferSinkCtx;
        inputs->pad_idx = 0;
        inputs->next = nullptr;

        if (avfilter_graph_parse_ptr(filterGraph, filterSpec, &inputs, &outputs, nullptr) < 0)
        {
            spdlog::error("Failed to parse filter graph");
            r(std::string{"ERROR-PARSE-FILTER"});
            return;
        }

        if (avfilter_graph_config(filterGraph, nullptr) < 0)
        {
            spdlog::error("Failed to configure filter graph");
            r(std::string{"ERROR-CONFIG-FILTER"});
            return;
        }

        // header
        spdlog::debug("[Mapping :: callbackAddSubtitle] Writing header...");

        if (avformat_write_header(outputFormatCtx, nullptr) < 0)
        {
            spdlog::error("Error writing header");
            r(std::string{"ERROR-WRITE-HEADER"});
            return;
        }

        // read frames and write to output
        AVPacket *packet = av_packet_alloc();
        AVFrame *frame = av_frame_alloc();

        frame->format = inputCodecCtx->pix_fmt;
        frame->width = inputCodecCtx->width;
        frame->height = inputCodecCtx->height;

        AVFrame *filt_frame = av_frame_alloc();

        filt_frame->format = inputCodecCtx->pix_fmt;
        filt_frame->width = inputCodecCtx->width;
        filt_frame->height = inputCodecCtx->height;

        while (av_read_frame(inputFormatCtx, packet) >= 0)
        {
            if (packet->stream_index == videoStreamIndex)
            {
                if (avcodec_send_packet(inputCodecCtx, packet) < 0)
                {
                    spdlog::error("Error sending packet for decoding");
                    r(std::string{"ERROR-SEND-PACKET-DECODE"});
                    return;
                }

                while (avcodec_receive_frame(inputCodecCtx, frame) == 0)
                {
                    // Envia o quadro decodificado para o gráfico de filtro
                    if (av_buffersrc_add_frame_flags(bufferSrcCtx, frame, AV_BUFFERSRC_FLAG_KEEP_REF) < 0)
                    {
                        spdlog::error("Error while feeding the filtergraph");
                        r(std::string{"ERROR-FEED-FILTERGRAPH"});
                        return;
                    }

                    // Recebe um quadro do gráfico de filtro
                    if (av_buffersink_get_frame(bufferSinkCtx, filt_frame) < 0)
                    {
                        spdlog::error("Error while receiving the filtered frame");
                        r(std::string{"ERROR-RECEIVE-FILTERED-FRAME"});
                        return;
                    }

                    // Envia o quadro decodificado para re-codificação
                    int retSendFrame = avcodec_send_frame(outputCodecCtx, filt_frame);
                    if (retSendFrame < 0)
                    {
                        char err[AV_ERROR_MAX_STRING_SIZE];
                        av_make_error_string(err, AV_ERROR_MAX_STRING_SIZE, retSendFrame);
                        spdlog::error("Error sending frame for encoding: {}", err);
                        r(std::string{"ERROR-SEND-FRAME-ENCODE"});
                        return;
                    }

                    AVPacket *output_packet = av_packet_alloc();
                    output_packet->data = nullptr;
                    output_packet->size = 0;

                    // Re-codifica filt_frame para um pacote
                    if (avcodec_receive_packet(outputCodecCtx, output_packet) == 0)
                    {
                        // Escreve o pacote no fluxo de saída
                        av_write_frame(outputFormatCtx, output_packet);
                        av_packet_unref(output_packet);
                    }

                    av_frame_unref(filt_frame);
                }

                // time
                packet->pts = av_rescale_q_rnd(packet->pts, inputFormatCtx->streams[videoStreamIndex]->time_base, outputFormatCtx->streams[videoStreamIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
                packet->dts = av_rescale_q_rnd(packet->dts, inputFormatCtx->streams[videoStreamIndex]->time_base, outputFormatCtx->streams[videoStreamIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
                packet->duration = av_rescale_q(packet->duration, inputFormatCtx->streams[videoStreamIndex]->time_base, outputFormatCtx->streams[videoStreamIndex]->time_base);
                packet->stream_index = videoStreamIndex;

                // write packet to output video stream
                av_interleaved_write_frame(outputFormatCtx, packet);
            }
            else if (packet->stream_index == audioStreamIndex)
            {
                // rescale timestamps
                packet->pts = av_rescale_q_rnd(packet->pts, inputFormatCtx->streams[audioStreamIndex]->time_base, outputFormatCtx->streams[audioStreamIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
                packet->dts = av_rescale_q_rnd(packet->dts, inputFormatCtx->streams[audioStreamIndex]->time_base, outputFormatCtx->streams[audioStreamIndex]->time_base, (AVRounding)(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
                packet->duration = av_rescale_q(packet->duration, inputFormatCtx->streams[audioStreamIndex]->time_base, outputFormatCtx->streams[audioStreamIndex]->time_base);
                packet->stream_index = audioStreamIndex;

                // write packet to output audio stream
                av_interleaved_write_frame(outputFormatCtx, packet);
            }

            av_packet_unref(packet);
        }

        av_packet_free(&packet);
        av_frame_free(&frame);
        av_frame_free(&filt_frame);

        spdlog::debug("[Mapping :: callbackAddSubtitle] Writing trailer...");

        if (av_write_trailer(outputFormatCtx) < 0)
        {
            spdlog::error("Error writing trailer");
            r(std::string{"ERROR-WRITE-TRAILER"});
            return;
        }

        // cleanup
        spdlog::debug("[Mapping :: callbackAddSubtitle] Cleaning...");

        if (!(outputFormatCtx->oformat->flags & AVFMT_NOFILE))
        {
            avio_closep(&outputFormatCtx->pb);
        }

        avcodec_free_context(&inputCodecCtx);
        avcodec_free_context(&inputAudioCodecCtx);
        avcodec_free_context(&outputCodecCtx);
        avcodec_free_context(&outputAudioCodecCtx);

        avformat_free_context(inputFormatCtx);
        avformat_free_context(outputFormatCtx);

        r(std::string{"OK"});
    }
    catch (const std::exception &e)
    {
        spdlog::error("Error: {}", e.what());
        r(std::string{"ERROR"});
    }
}


  


  The error is :

  


  [2023-10-17 06:30:16.936] [debug] [Mapping :: callbackAddSubtitle] Adding subtitle...
[2023-10-17 06:30:16.936] [debug] [Mapping :: callbackAddSubtitle] Initializing input video...
[NULL @ 0x153604a60] Opening '/Users/paulo/Downloads/movie.mp4' for reading
[file @ 0x6000001fd170] Setting default whitelist 'file,crypto,data'
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] ISO: File Type Major Brand: isom
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Processing st: 0, edit list 0 - media time: 0, duration: 2669670
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Processing st: 1, edit list 0 - media time: 1024, duration: 4272096
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] drop a frame at curr_cts: 0 @ 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] Before avformat_find_stream_info() pos: 113542488 bytes read:110788 seeks:1 nb_streams:2
[h264 @ 0x153604cd0] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x153604cd0] Decoding VUI
[h264 @ 0x153604cd0] nal_unit_type: 8(PPS), nal_ref_idc: 3
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] demuxer injecting skip 1024 / discard 0
[aac @ 0x1536056f0] skip 1024 / discard 0 samples due to side data
[h264 @ 0x153604cd0] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x153604cd0] Decoding VUI
[h264 @ 0x153604cd0] nal_unit_type: 8(PPS), nal_ref_idc: 3
[h264 @ 0x153604cd0] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x153604cd0] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x153604cd0] Format yuv420p chosen by get_format().
[h264 @ 0x153604cd0] Reinit context to 1088x1920, pix_fmt: yuv420p
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x153604a60] After avformat_find_stream_info() pos: 195211 bytes read:305951 seeks:2 frames:2
[2023-10-17 06:30:18.160] [debug] [Mapping :: callbackAddSubtitle] Initializing input audio...
[h264 @ 0x143604330] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x143604330] Decoding VUI
[h264 @ 0x143604330] nal_unit_type: 8(PPS), nal_ref_idc: 3
[2023-10-17 06:30:18.160] [debug] [Mapping :: callbackAddSubtitle] Initializing output video...
[h264 @ 0x143611ec0] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x143611ec0] Decoding VUI
[h264 @ 0x143611ec0] nal_unit_type: 8(PPS), nal_ref_idc: 3
[file @ 0x6000001f4000] Setting default whitelist 'file,crypto,data'
[2023-10-17 06:30:18.167] [debug] Pixel Format: YUV420P
[2023-10-17 06:30:18.167] [debug] [Mapping :: callbackAddSubtitle] Initializing output audio...
[2023-10-17 06:30:18.167] [debug] [Mapping :: callbackAddSubtitle] Initializing filters...
[2023-10-17 06:30:18.168] [debug] [Mapping :: callbackAddSubtitle] Buffer src args: video_size=1080x1920:pix_fmt=0:time_base=1/30000:pixel_aspect=1/1
detected 10 logical cores
[in @ 0x6000004ec0b0] Setting 'video_size' to value '1080x1920'
[in @ 0x6000004ec0b0] Setting 'pix_fmt' to value '0'
[in @ 0x6000004ec0b0] Setting 'time_base' to value '1/30000'
[in @ 0x6000004ec0b0] Setting 'pixel_aspect' to value '1/1'
[in @ 0x6000004ec0b0] w:1080 h:1920 pixfmt:yuv420p tb:1/30000 fr:0/1 sar:1/1
[AVFilterGraph @ 0x6000017e8000] Setting 'text' to value 'Legenda Adicionada Automaticamente Via FFMPEG e C++'
[AVFilterGraph @ 0x6000017e8000] Setting 'fontcolor' to value 'yellow'
[AVFilterGraph @ 0x6000017e8000] Setting 'bordercolor' to value 'black'
[AVFilterGraph @ 0x6000017e8000] Setting 'fontfile' to value '/Users/paulo/Downloads/roboto/Roboto-Black.ttf'
[AVFilterGraph @ 0x6000017e8000] query_formats: 3 queried, 2 merged, 0 already done, 0 delayed
[2023-10-17 06:30:18.172] [debug] [Mapping :: callbackAddSubtitle] Writing header...
[h264 @ 0x143604330] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x143604330] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x143604330] Format yuv420p chosen by get_format().
[h264 @ 0x143604330] Reinit context to 1088x1920, pix_fmt: yuv420p
[Parsed_drawtext_0 @ 0x6000004f4160] Copying data in avfilter.
[Parsed_drawtext_0 @ 0x6000004f4160] n:0 t:0.000000 text_w:424 text_h:16 x:0 y:0
[2023-10-17 06:30:18.182] [error] Error sending frame for encoding: Invalid argument
Returned Value: ERROR-SEND-FRAME-ENCODE


  


• I have an application in flask where it streams a camera using ffmpeg, the problem is that I can not display the video from the camera using the GPU [closed]

  17 janvier, par Ruben

  I'll put you in context, I am using flask (python) to display a camera in the browser to stream it, for this I use the following Python code :

  


  command = [
     'ffmpeg',
     '-loglevel', 'warning',
     '-rtsp_transport', 'tcp',
     '-i', self.config['url'],
     '-map', '0:v:0', # fuerzo que solo procese el video
     '-vf', f'fps={self.config["fps"]},scale=640:360:force_original_aspect_ratio=decrease',
     '-c:v', 'h264_nvenc', # especificamos que queremos tirar de la gpu de nvidia
     '-preset', 'p7', # ajusta para la maxima calidad/velocidad (p1 mas rapida pero peor calidad - p7 más lento pero mejor calidad)
     '-qp', self.config['quality'], # control de calidad del codificador (0 [mejor calidad] - 51 [peor calidad])
     '-pix_fmt', 'yuv444p', # se mete explicitamente el formato de pixeles
     '-color_range', 'pc',
     '-an', # desactiva el audio
     '-f', 'image2pipe',
     'pipe:1'
] 

self.process = subprocess.Popen(
   command,
   stdout=subprocess.PIPE,
   stderr=subprocess.PIPE,
   bufsize=10**8
)


  


  The problem is that it does not display the video streaming, but it connects correctly to the camera.

  


  On the other hand, It show me the following warnings, which may have something to do with the display, it's probably the second warning that has to do with the pixel format :

  


  DEBUG :main:FFmpeg [camera1] : Guessed Channel Layout for Input Stream #0.1 : mono
DEBUG :main:FFmpeg [camera1] : [swscaler @ 0x560f70b78680] deprecated pixel format used, make sure you did set range correctly

  


  The server has different encodes installed :

  


  DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders : h264 h264_v4l2m2m h264_qsv h264_cuvid ) (encoders : libx264 libx264rgb h264_nvenc h264_omx h264_qsv h264_v4l2m2m h264_vaapi nvenc nvenc_h264 )

  


  Y uso el h264_nvenc, tambien el servidor tiene soporte de aceleración de hardware con :

  


  libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
Hardware acceleration methods :
vdpau
cuda
vaapi
qsv
drm
opencl

  


  Between them h264_nvenc uses cuda

  


  I expand a little on the information it provides me when using h264_nvenc :

  


  Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]:&#xA;    General capabilities: dr1 delay hardware&#xA;    Threading capabilities: none&#xA;    Supported hardware devices: cuda cuda&#xA;    Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 rgb0 cuda&#xA;h264_nvenc AVOptions:&#xA;  -preset            <int>        E..V....... Set the encoding preset (from 0 to 18) (default p4)&#xA;     default         0            E..V.......&#xA;     slow            1            E..V....... hq 2 passes&#xA;     medium          2            E..V....... hq 1 pass&#xA;     fast            3            E..V....... hp 1 pass&#xA;     hp              4            E..V.......&#xA;     hq              5            E..V.......&#xA;     bd              6            E..V.......&#xA;     ll              7            E..V....... low latency&#xA;     llhq            8            E..V....... low latency hq&#xA;     llhp            9            E..V....... low latency hp&#xA;     lossless        10           E..V.......&#xA;     losslesshp      11           E..V.......&#xA;     p1              12           E..V....... fastest (lowest quality)&#xA;     p2              13           E..V....... faster (lower quality)&#xA;     p3              14           E..V....... fast (low quality)&#xA;     p4              15           E..V....... medium (default)&#xA;     p5              16           E..V....... slow (good quality)&#xA;     p6              17           E..V....... slower (better quality)&#xA;     p7              18           E..V....... slowest (best quality)&#xA;  -tune              <int>        E..V....... Set the encoding tuning info (from 1 to 4) (default hq)&#xA;     hq              1            E..V....... High quality&#xA;     ll              2            E..V....... Low latency&#xA;     ull             3            E..V....... Ultra low latency&#xA;     lossless        4            E..V....... Lossless&#xA;  -profile           <int>        E..V....... Set the encoding profile (from 0 to 3) (default main)&#xA;     baseline        0            E..V.......&#xA;     main            1            E..V.......&#xA;     high            2            E..V.......&#xA;     high444p        3            E..V.......&#xA;  -level             <int>        E..V....... Set the encoding level restriction (from 0 to 62) (default auto)&#xA;     auto            0            E..V.......&#xA;     1               10           E..V.......&#xA;     1.0             10           E..V.......&#xA;     1b              9            E..V.......&#xA;     1.0b            9            E..V.......&#xA;     1.1             11           E..V.......&#xA;     1.2             12           E..V.......&#xA;     1.3             13           E..V.......&#xA;     2               20           E..V.......&#xA;     2.0             20           E..V.......&#xA;     2.1             21           E..V.......&#xA;     2.2             22           E..V.......&#xA;     3               30           E..V.......&#xA;     3.0             30           E..V.......&#xA;     3.1             31           E..V.......&#xA;     3.2             32           E..V.......&#xA;     4               40           E..V.......&#xA;     4.0             40           E..V.......&#xA;     4.1             41           E..V.......&#xA;     4.2             42           E..V.......&#xA;     5               50           E..V.......&#xA;     5.0             50           E..V.......&#xA;     5.1             51           E..V.......&#xA;     5.2             52           E..V.......&#xA;     6.0             60           E..V.......&#xA;     6.1             61           E..V.......&#xA;     6.2             62           E..V.......&#xA;  -rc                <int>        E..V....... Override the preset rate-control (from -1 to INT_MAX) (default -1)&#xA;     constqp         0            E..V....... Constant QP mode&#xA;     vbr             1            E..V....... Variable bitrate mode&#xA;     cbr             2            E..V....... Constant bitrate mode&#xA;     vbr_minqp       8388612      E..V....... Variable bitrate mode with MinQP (deprecated)&#xA;     ll_2pass_quality 8388616      E..V....... Multi-pass optimized for image quality (deprecated)&#xA;     ll_2pass_size   8388624      E..V....... Multi-pass optimized for constant frame size (deprecated)&#xA;     vbr_2pass       8388640      E..V....... Multi-pass variable bitrate mode (deprecated)&#xA;     cbr_ld_hq       8388616      E..V....... Constant bitrate low delay high quality mode&#xA;     cbr_hq          8388624      E..V....... Constant bitrate high quality mode&#xA;     vbr_hq          8388640      E..V....... Variable bitrate high quality mode&#xA;  -rc-lookahead      <int>        E..V....... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)&#xA;  -surfaces          <int>        E..V....... Number of concurrent surfaces (from 0 to 64) (default 0)&#xA;  -cbr               <boolean>    E..V....... Use cbr encoding mode (default false)&#xA;  -2pass             <boolean>    E..V....... Use 2pass encoding mode (default auto)&#xA;  -gpu               <int>        E..V....... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)&#xA;     any             -1           E..V....... Pick the first device available&#xA;     list            -2           E..V....... List the available devices&#xA;  -delay             <int>        E..V....... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)&#xA;  -no-scenecut       <boolean>    E..V....... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)&#xA;  -forced-idr        <boolean>    E..V....... If forcing keyframes, force them as IDR frames. (default false)&#xA;  -b_adapt           <boolean>    E..V....... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)&#xA;  -spatial-aq        <boolean>    E..V....... set to 1 to enable Spatial AQ (default false)&#xA;  -spatial_aq        <boolean>    E..V....... set to 1 to enable Spatial AQ (default false)&#xA;  -temporal-aq       <boolean>    E..V....... set to 1 to enable Temporal AQ (default false)&#xA;  -temporal_aq       <boolean>    E..V....... set to 1 to enable Temporal AQ (default false)&#xA;  -zerolatency       <boolean>    E..V....... Set 1 to indicate zero latency operation (no reordering delay) (default false)&#xA;  -nonref_p          <boolean>    E..V....... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)&#xA;  -strict_gop        <boolean>    E..V....... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)&#xA;  -aq-strength       <int>        E..V....... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)&#xA;  -cq                <float>      E..V....... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)&#xA;  -aud               <boolean>    E..V....... Use access unit delimiters (default false)&#xA;  -bluray-compat     <boolean>    E..V....... Bluray compatibility workarounds (default false)&#xA;  -init_qpP          <int>        E..V....... Initial QP value for P frame (from -1 to 51) (default -1)&#xA;  -init_qpB          <int>        E..V....... Initial QP value for B frame (from -1 to 51) (default -1)&#xA;  -init_qpI          <int>        E..V....... Initial QP value for I frame (from -1 to 51) (default -1)&#xA;  -qp                <int>        E..V....... Constant quantization parameter rate control method (from -1 to 51) (default -1)&#xA;  -weighted_pred     <int>        E..V....... Set 1 to enable weighted prediction (from 0 to 1) (default 0)&#xA;  -coder             <int>        E..V....... Coder type (from -1 to 2) (default default)&#xA;     default         -1           E..V.......&#xA;     auto            0            E..V.......&#xA;     cabac           1            E..V.......&#xA;     cavlc           2            E..V.......&#xA;     ac              1            E..V.......&#xA;     vlc             2            E..V.......&#xA;  -b_ref_mode        <int>        E..V....... Use B frames as references (from 0 to 2) (default disabled)&#xA;     disabled        0            E..V....... B frames will not be used for reference&#xA;     each            1            E..V....... Each B frame will be used for reference&#xA;     middle          2            E..V....... Only (number of B frames)/2 will be used for reference&#xA;  -a53cc             <boolean>    E..V....... Use A53 Closed Captions (if available) (default true)&#xA;  -dpb_size          <int>        E..V....... Specifies the DPB size used for encoding (0 means automatic) (from 0 to INT_MAX) (default 0)&#xA;  -multipass         <int>        E..V....... Set the multipass encoding (from 0 to 2) (default disabled)&#xA;     disabled        0            E..V....... Single Pass&#xA;     qres            1            E..V....... Two Pass encoding is enabled where first Pass is quarter resolution&#xA;     fullres         2            E..V....... Two Pass encoding is enabled where first Pass is full resolution&#xA;  -ldkfs             <int>        E..V....... Low delay key frame scale; Specifies the Scene Change frame size increase allowed in case of single frame VBV and CBR (from 0 to 255) (default 0)&#xA;</int></int></int></boolean></int></int></int></int></int></int></int></boolean></boolean></float></int></boolean></boolean></boolean></boolean></boolean></boolean></boolean></boolean></boolean></boolean></int></int></boolean></boolean></int></int></int></int></int></int></int>

  


  If anyone has some idea or needs more information to help me, I would appreciate it.