xref: /third_party/ffmpeg/tools/venc_data_dump.c (revision cabdff1a) 
1/*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19#include <stdio.h>
20#include <stdint.h>
21#include <stdlib.h>
22
23#include "decode_simple.h"
24
25#include "libavutil/common.h"
26#include "libavutil/dict.h"
27#include "libavutil/error.h"
28#include "libavutil/video_enc_params.h"
29
30#include "libavformat/avformat.h"
31
32#include "libavcodec/avcodec.h"
33
34static int process_frame(DecodeContext *dc, AVFrame *frame)
35{
36    AVFrameSideData *sd;
37
38    if (!frame)
39        return 0;
40
41    fprintf(stdout, "frame %d\n", dc->decoder->frame_number - 1);
42
43    sd = av_frame_get_side_data(frame, AV_FRAME_DATA_VIDEO_ENC_PARAMS);
44    if (sd) {
45        AVVideoEncParams *par = (AVVideoEncParams*)sd->data;
46
47        fprintf(stdout, "AVVideoEncParams %d\n", par->type);
48        fprintf(stdout, "qp %d\n", par->qp);
49        for (int i = 0; i < FF_ARRAY_ELEMS(par->delta_qp); i++)
50            for (int j = 0; j < FF_ARRAY_ELEMS(par->delta_qp[i]); j++) {
51                if (par->delta_qp[i][j])
52                    fprintf(stdout, "delta_qp[%d][%d] %"PRId32"\n", i, j, par->delta_qp[i][j]);
53            }
54
55        if (par->nb_blocks) {
56            fprintf(stdout, "nb_blocks %d\n", par->nb_blocks);
57            for (int i = 0; i < par->nb_blocks; i++) {
58                AVVideoBlockParams *b = av_video_enc_params_block(par, i);
59
60                fprintf(stdout, "block %d %d:%d %dx%d %"PRId32"\n",
61                        i, b->src_x, b->src_y, b->w, b->h, b->delta_qp);
62            }
63        }
64    }
65
66    return 0;
67}
68
69int main(int argc, char **argv)
70{
71    DecodeContext dc;
72
73    unsigned int stream_idx, max_frames;
74    const char *filename, *thread_type = NULL, *nb_threads = NULL;
75    int ret = 0;
76
77    if (argc <= 3) {
78        fprintf(stderr, "Usage: %s <input file> <stream index> <max frame count> [<thread count> <thread type>]\n", argv[0]);
79        return 0;
80    }
81
82    filename    = argv[1];
83    stream_idx  = strtol(argv[2], NULL, 0);
84    max_frames  = strtol(argv[3], NULL, 0);
85    if (argc > 5) {
86        nb_threads  = argv[4];
87        thread_type = argv[5];
88    }
89
90    ret = ds_open(&dc, filename, stream_idx);
91    if (ret < 0)
92        goto finish;
93
94    dc.process_frame = process_frame;
95    dc.max_frames    = max_frames;
96
97    ret  = av_dict_set(&dc.decoder_opts, "threads",          nb_threads,    0);
98    ret |= av_dict_set(&dc.decoder_opts, "thread_type",      thread_type,   0);
99    ret |= av_dict_set(&dc.decoder_opts, "export_side_data", "venc_params", 0);
100
101    if (ret < 0)
102        goto finish;
103
104    ret = ds_run(&dc);
105
106finish:
107    ds_free(&dc);
108    return ret;
109}
110