/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <stdio.h>#include <stdint.h>#include <stdlib.h> #include "decode_simple.h" #include "libavutil/common.h"#include "libavutil/dict.h"#include "libavutil/error.h"#include "libavutil/video_enc_params.h" #include "libavformat/avformat.h" #include "libavcodec/avcodec.h" static int process_frame(DecodeContext *dc, AVFrame *frame){    AVFrameSideData *sd;     if (!frame)        return 0;     fprintf(stdout, "frame %"PRId64"\n", dc->decoder->frame_num - 1);     sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS);    if (sd) {        AVVideoEncParams *par = (AVVideoEncParams*)sd->data;         fprintf(stdout, "AVVideoEncParams %d\n", par->type);        fprintf(stdout, "qp %d\n", par->qp);        for (int i = 0; i < FF_ARRAY_ELEMS(par->delta_qp); i++)            for (int j = 0; j < FF_ARRAY_ELEMS(par->delta_qp[i]); j++) {                if (par->delta_qp[i][j])                    fprintf(stdout, "delta_qp[%d][%d] %"PRId32"\n", i, j, par->delta_qp[i][j]);            }         if (par->nb_blocks) {            fprintf(stdout, "nb_blocks %d\n", par->nb_blocks);            for (int i = 0; i < par->nb_blocks; i++) {                AVVideoBlockParams *b = av_video_enc_params_block(par, i);                 fprintf(stdout, "block %d %d:%d %dx%d %"PRId32"\n",                        i, b->src_x, b->src_y, b->w, b->h, b->delta_qp);            }        }    }     return 0;} int main(int argc, char **argv){    DecodeContext dc;     unsigned int stream_idx, max_frames;    const char *filename, *thread_type = NULL, *nb_threads = NULL;    int ret = 0;     if (argc <= 3) {        fprintf(stderr, "Usage: %s <input file> <stream index> <max frame count> [<thread count> <thread type>]\n", argv[0]);        return 0;    }     filename    = argv[1];    stream_idx  = strtol(argv[2], NULL, 0);    max_frames  = strtol(argv[3], NULL, 0);    if (argc > 5) {        nb_threads  = argv[4];        thread_type = argv[5];    }     ret = ds_open(&dc, filename, stream_idx);    if (ret < 0)        goto finish;     dc.process_frame = process_frame;    dc.max_frames    = max_frames;     ret  = av_dict_set(&dc.decoder_opts, "threads",          nb_threads,    0);    ret |= av_dict_set(&dc.decoder_opts, "thread_type",      thread_type,   0);    ret |= av_dict_set(&dc.decoder_opts, "export_side_data", "venc_params", 0);     if (ret < 0)        goto finish;     ret = ds_run(&dc); finish:    ds_free(&dc);    return ret;}