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/*
* 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 %d\n", dc->decoder->frame_number - 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;
}
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