mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include "decode_simple.h"
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#include "libavutil/common.h"
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#include "libavutil/dict.h"
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#include "libavutil/error.h"
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#include "libavutil/video_enc_params.h"
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#include "libavformat/avformat.h"
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#include "libavcodec/avcodec.h"
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static int process_frame(DecodeContext *dc, AVFrame *frame)
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{
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AVFrameSideData *sd;
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if (!frame)
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return 0;
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fprintf(stdout, "frame %d\n", dc->decoder->frame_number - 1);
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sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS);
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if (sd) {
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AVVideoEncParams *par = (AVVideoEncParams*)sd->data;
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fprintf(stdout, "AVVideoEncParams %d\n", par->type);
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fprintf(stdout, "qp %d\n", par->qp);
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for (int i = 0; i < FF_ARRAY_ELEMS(par->delta_qp); i++)
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for (int j = 0; j < FF_ARRAY_ELEMS(par->delta_qp[i]); j++) {
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if (par->delta_qp[i][j])
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fprintf(stdout, "delta_qp[%d][%d] %"PRId32"\n", i, j, par->delta_qp[i][j]);
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}
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if (par->nb_blocks) {
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fprintf(stdout, "nb_blocks %d\n", par->nb_blocks);
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for (int i = 0; i < par->nb_blocks; i++) {
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AVVideoBlockParams *b = av_video_enc_params_block(par, i);
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fprintf(stdout, "block %d %d:%d %dx%d %"PRId32"\n",
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i, b->src_x, b->src_y, b->w, b->h, b->delta_qp);
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}
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}
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}
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return 0;
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}
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int main(int argc, char **argv)
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{
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DecodeContext dc;
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unsigned int stream_idx, max_frames;
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const char *filename, *thread_type = NULL, *nb_threads = NULL;
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int ret = 0;
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if (argc <= 3) {
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fprintf(stderr, "Usage: %s <input file> <stream index> <max frame count> [<thread count> <thread type>]\n", argv[0]);
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return 0;
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}
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filename = argv[1];
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stream_idx = strtol(argv[2], NULL, 0);
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max_frames = strtol(argv[3], NULL, 0);
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if (argc > 5) {
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nb_threads = argv[4];
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thread_type = argv[5];
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}
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ret = ds_open(&dc, filename, stream_idx);
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if (ret < 0)
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goto finish;
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dc.process_frame = process_frame;
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dc.max_frames = max_frames;
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ret = av_dict_set(&dc.decoder_opts, "threads", nb_threads, 0);
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ret |= av_dict_set(&dc.decoder_opts, "thread_type", thread_type, 0);
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ret |= av_dict_set(&dc.decoder_opts, "export_side_data", "venc_params", 0);
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if (ret < 0)
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goto finish;
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ret = ds_run(&dc);
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finish:
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ds_free(&dc);
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return ret;
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}
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