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Sur d’autres sites (8056)
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Ffmpeg error "avcodec_send_frame" return "invalid argument"
17 octobre 2023, par Paulo CoutinhoI have a problem in function
avcodec_send_frame
throwing errorError 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



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