FFmpeg  1.2.12
internal.h
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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 
24 #ifndef AVCODEC_INTERNAL_H
25 #define AVCODEC_INTERNAL_H
26 
27 #include <stdint.h>
28 
29 #include "libavutil/mathematics.h"
30 #include "libavutil/pixfmt.h"
31 #include "avcodec.h"
32 
33 #define FF_SANE_NB_CHANNELS 128U
34 
35 typedef struct InternalBuffer {
39  int width;
40  int height;
43 
44 typedef struct AVCodecInternal {
50 
56 
63  int is_copy;
64 
65 #if FF_API_OLD_ENCODE_AUDIO
66 
70  int sample_count;
71 #endif
72 
78 
84 
89  unsigned int byte_buffer_size;
90 
92 
98 
100  const uint8_t *key;
101  const uint8_t *value;
102 };
103 
113 
118 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
119 
120 unsigned int avpriv_toupper4(unsigned int x);
121 
126 
127 
128 void avpriv_color_frame(AVFrame *frame, const int color[4]);
129 
134 
135 extern volatile int ff_avcodec_locked;
136 int ff_lock_avcodec(AVCodecContext *log_ctx);
137 int ff_unlock_avcodec(void);
138 
139 int avpriv_lock_avformat(void);
140 int avpriv_unlock_avformat(void);
141 
147 #define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
148 
166 int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size);
167 
168 int ff_alloc_packet(AVPacket *avpkt, int size);
169 
174  int64_t samples)
175 {
176  if(samples == AV_NOPTS_VALUE)
177  return AV_NOPTS_VALUE;
178  return av_rescale_q(samples, (AVRational){ 1, avctx->sample_rate },
179  avctx->time_base);
180 }
181 
188 
190 
192 
194 
195 void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
196  uint8_t *visualization_buffer[3], int *low_delay,
197  int mb_width, int mb_height, int mb_stride, int quarter_sample);
198 
205 
210 
214 int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf);
215 
217 
218 #endif /* AVCODEC_INTERNAL_H */