File: decode.c

package info (click to toggle)
schroedinger 1.0.11-2.1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 8,480 kB
  • ctags: 6,139
  • sloc: ansic: 97,380; sh: 11,238; xml: 6,509; makefile: 387
file content (152 lines) | stat: -rw-r--r-- 2,842 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <schroedinger/schro.h>
#include <schroedinger/schrodebug.h>


#include "common.h"

int verbose = FALSE;

void decode (FILE *file);
void parse (FILE *file);

int
main (int argc, char *argv[])
{
  FILE *file;

  schro_init();

  if (argc < 2) {
    printf("decode stream.drc\n");
    exit(1);
  }

  file = fopen (argv[1], "r");
  if (file == NULL) {
    printf("cannot open %s\n", argv[1]);
    return 1;
  }

  decode (file);
  //parse (file);

  fclose (file);

  return 0;
}

static void
buffer_free (SchroBuffer *buf, void *priv)
{
  free (priv);
}

void
decode (FILE *file)
{
  SchroDecoder *decoder;
  SchroBuffer *buffer;
  SchroVideoFormat *format = NULL;
  SchroFrame *frame;
  int go;
  int it;
  int eos = FALSE;
  int eof = FALSE;
  void *packet;
  int size;
  int ret;
  int width, height;

  decoder = schro_decoder_new();

  while(!eos) {
    ret = parse_packet (file, &packet, &size);
    if (!ret) {
      exit(1);
    }

    printf("packet size %d\n", size);
    if (size == 0) {
      eof = TRUE;
      schro_decoder_push_end_of_stream (decoder);
    } else {
      buffer = schro_buffer_new_with_data (packet, size);
      buffer->free = buffer_free;
      buffer->priv = packet;

      it = schro_decoder_push (decoder, buffer);
      if (it == SCHRO_DECODER_FIRST_ACCESS_UNIT) {
        format = schro_decoder_get_video_format (decoder);
      }
    }

    go = 1;
    while (go) {
      it = schro_decoder_wait (decoder);

      switch (it) {
        case SCHRO_DECODER_NEED_BITS:
          go = 0;
          break;
        case SCHRO_DECODER_NEED_FRAME:
          schro_video_format_get_picture_luma_size (format, &width, &height);
          frame = schro_frame_new_and_alloc (NULL,
              schro_params_get_frame_format(8, format->chroma_format),
              width, height);
          schro_decoder_add_output_picture (decoder, frame);
          break;
        case SCHRO_DECODER_OK:
          if (verbose) printf("picture number %d\n",
              schro_decoder_get_picture_number (decoder));
          frame = schro_decoder_pull (decoder);

          if (frame) {
            schro_frame_unref (frame);
          }
          break;
        case SCHRO_DECODER_EOS:
          printf("got eos\n");
          if (eof) {
            eos = TRUE;
          }
          go = 0;
          break;
        case SCHRO_DECODER_ERROR:
          exit(0);
          break;
      }
    }
  }

  printf("freeing decoder\n");
  schro_decoder_free (decoder);
  free(format);
}

void
parse (FILE *file)
{
  void *packet;
  int size;
  int ret;

  while(1) {
    ret = parse_packet (file, &packet, &size);
    if (!ret) {
      exit(1);
    }

    if (packet) free (packet);
    if (size == 0) return;
  }
}