I need to convert any format (for example, mp4, avi etc) to .webm with own ioContext. I build ffmpeg with vpx, ogg, vorbis, opus and create simple project. But when i write any frame i get error "Too many invisible frames. Failed to send packet to filter vp9_superframe for stream 0"
I've already tried convert from webm to webm with copy codec params with avcodec_parameters_copy and this works. #include <QCoreApplication> #include <QFileInfo> #include <iostream> #include <fstream> extern "C" { #include <libavcodec/avcodec.h> #include <libavformat/avformat.h> #include <libavutil/timestamp.h> #include <libavformat/avformat.h> #include <libavfilter/buffersink.h> #include <libavfilter/buffersrc.h> #include <libavutil/opt.h> #include <libavutil/pixdesc.h> } using namespace std; struct BufferData { QByteArray data; uint fullsize; BufferData() { fullsize =0; } }; static int write_packet_to_buffer(void *opaque, uint8_t *buf, int buf_size) { BufferData *bufferData = static_cast<BufferData*>(opaque); bufferData->fullsize += buf_size; bufferData->data.append((const char*)buf, buf_size); return buf_size; } static bool writeBuffer(const QString &filename, BufferData *bufferData) { QFile file(filename); if( !file.open(QIODevice::WriteOnly) ) return false; file.write(bufferData->data); qDebug()<<"FILE SIZE = " << file.size(); file.close(); return true; } int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); AVOutputFormat *ofmt = NULL; AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL; AVPacket pkt; int ret; int stream_index = 0; int *stream_mapping = NULL; int stream_mapping_size = 0; const char *in_filename = "../assets/sample.mp4"; const char *out_filename = "../assets/sample_new.webm"; //------------------------ Input file ---------------------------- if ((ret = avformat_open_input(&ifmt_ctx, in_filename, 0, 0)) < 0) { fprintf(stderr, "Could not open input file '%s'", in_filename); return 1; } if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0) { fprintf(stderr, "Failed to retrieve input stream information"); return 1; } av_dump_format(ifmt_ctx, 0, in_filename, 0); //----------------------------------------------------------------- //---------------------- BUFFER ------------------------- AVIOContext *avio_ctx = NULL; uint8_t *avio_ctx_buffer = NULL; size_t avio_ctx_buffer_size = 4096*1024; const size_t bd_buf_size = 1024*1024; /* fill opaque structure used by the AVIOContext write callback */ avio_ctx_buffer = (uint8_t*)av_malloc(avio_ctx_buffer_size); if (!avio_ctx_buffer) return AVERROR(ENOMEM); BufferData bufferData; avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size, 1, &bufferData, NULL, &write_packet_to_buffer, NULL); if (!avio_ctx) return AVERROR(ENOMEM); //------------------------------------------------------ avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename); if (!ofmt_ctx) { fprintf(stderr, "Could not create output context\n"); ret = AVERROR_UNKNOWN; return 1; } //------------------------ Stream list ---------------------------- stream_mapping_size = ifmt_ctx->nb_streams; stream_mapping = (int*)av_mallocz_array(stream_mapping_size, sizeof(*stream_mapping)); if (!stream_mapping) { ret = AVERROR(ENOMEM); return 1; } //------------------------------------------------------------------- //------------------------ Output file ---------------------------- AVCodec *encoder; AVCodecContext *input_ctx; AVCodecContext *enc_ctx; for (int i=0; i < ifmt_ctx->nb_streams; i++) { AVStream *out_stream; AVStream *in_stream = ifmt_ctx->streams[i]; AVCodecParameters *in_codecpar = in_stream->codecpar; if (in_codecpar->codec_type != AVMEDIA_TYPE_AUDIO && in_codecpar->codec_type != AVMEDIA_TYPE_VIDEO && in_codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) { stream_mapping[i] = -1; continue; } enc_ctx = avcodec_alloc_context3(encoder); if (!enc_ctx) { av_log(NULL, AV_LOG_FATAL, "Failed to allocate the encoder context\n"); return AVERROR(ENOMEM); } stream_mapping[i] = stream_index++; out_stream = avformat_new_stream(ofmt_ctx, NULL); if (!out_stream) { fprintf(stderr, "Failed allocating output stream\n"); ret = AVERROR_UNKNOWN; return 1; } out_stream->codecpar->width = in_codecpar->width; out_stream->codecpar->height = in_codecpar->height; out_stream->codecpar->level = in_codecpar->level; out_stream->codecpar->format =in_codecpar->format; out_stream->codecpar->profile =in_codecpar->profile; out_stream->codecpar->bit_rate =in_codecpar->bit_rate; out_stream->codecpar->channels =in_codecpar->channels; out_stream->codecpar->codec_tag = 0; out_stream->codecpar->color_trc =in_codecpar->color_trc; out_stream->codecpar->codec_type =in_codecpar->codec_type; out_stream->codecpar->frame_size =in_codecpar->frame_size; out_stream->codecpar->block_align =in_codecpar->block_align; out_stream->codecpar->color_range =in_codecpar->color_range; out_stream->codecpar->color_space =in_codecpar->color_space; out_stream->codecpar->field_order =in_codecpar->field_order; out_stream->codecpar->sample_rate =in_codecpar->sample_rate; out_stream->codecpar->video_delay =in_codecpar->video_delay; out_stream->codecpar->seek_preroll =in_codecpar->seek_preroll; out_stream->codecpar->channel_layout =in_codecpar->channel_layout; out_stream->codecpar->chroma_location =in_codecpar->chroma_location; out_stream->codecpar->color_primaries =in_codecpar->color_primaries; out_stream->codecpar->initial_padding =in_codecpar->initial_padding; out_stream->codecpar->trailing_padding =in_codecpar->trailing_padding; out_stream->codecpar->bits_per_raw_sample = in_codecpar->bits_per_raw_sample; out_stream->codecpar->sample_aspect_ratio.num = in_codecpar->sample_aspect_ratio.num; out_stream->codecpar->sample_aspect_ratio.den = in_codecpar->sample_aspect_ratio.den; out_stream->codecpar->bits_per_coded_sample = in_codecpar->bits_per_coded_sample; if (in_codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { out_stream->codecpar->codec_id =ofmt_ctx->oformat->video_codec; } else if(in_codecpar->codec_type == AVMEDIA_TYPE_AUDIO) { out_stream->codecpar->codec_id = ofmt_ctx->oformat- >audio_codec; } } av_dump_format(ofmt_ctx, 0, out_filename, 1); ofmt_ctx->pb = avio_ctx; ret = avformat_write_header(ofmt_ctx, NULL); if (ret < 0) { fprintf(stderr, "Error occurred when opening output file\n"); return 1; } //------------------------------------------------------------------------------ while (1) { AVStream *in_stream, *out_stream; ret = av_read_frame(ifmt_ctx, &pkt); if (ret < 0) break; in_stream = ifmt_ctx->streams[pkt.stream_index]; if (pkt.stream_index >= stream_mapping_size || stream_mapping[pkt.stream_index] < 0) { av_packet_unref(&pkt); continue; } pkt.stream_index = stream_mapping[pkt.stream_index]; out_stream = ofmt_ctx->streams[pkt.stream_index]; /* copy packet */ pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AVRounding(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX)); pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AVRounding(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX)); pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base); pkt.pos = -1; ret = av_interleaved_write_frame(ofmt_ctx, &pkt); if (ret < 0) { fprintf(stderr, "Error muxing packet\n"); break; } av_packet_unref(&pkt); } av_write_trailer(ofmt_ctx); avformat_close_input(&ifmt_ctx); /* close output */ writeBuffer(fileNameOut, &bufferData); avformat_free_context(ofmt_ctx); av_freep(&stream_mapping); if (ret < 0 && ret != AVERROR_EOF) { fprintf(stderr, "Error occurred: %d\n",ret); return 1; } return a.exec(); } _______________________________________________ Libav-user mailing list Libav-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/libav-user To unsubscribe, visit link above, or email libav-user-requ...@ffmpeg.org with subject "unsubscribe".