postprocess array increased to handle images up to 2048x1536
[libav.git] / libavcodec / avcodec.h
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1#ifndef AVCODEC_H
2#define AVCODEC_H
3
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4#include "common.h"
5
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6#define LIBAVCODEC_VERSION_INT 0x000406
7#define LIBAVCODEC_VERSION "0.4.6"
8#define LIBAVCODEC_BUILD 4600
9#define LIBAVCODEC_BUILD_STR "4600"
10
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11enum CodecID {
12 CODEC_ID_NONE,
13 CODEC_ID_MPEG1VIDEO,
14 CODEC_ID_H263,
15 CODEC_ID_RV10,
16 CODEC_ID_MP2,
9d36bdc9 17 CODEC_ID_MP3LAME,
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18 CODEC_ID_AC3,
19 CODEC_ID_MJPEG,
bf89e6b1 20 CODEC_ID_MPEG4,
de6d9b64 21 CODEC_ID_RAWVIDEO,
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22 CODEC_ID_MSMPEG4V1,
23 CODEC_ID_MSMPEG4V2,
24 CODEC_ID_MSMPEG4V3,
e1a9dbff 25 CODEC_ID_WMV1,
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26 CODEC_ID_H263P,
27 CODEC_ID_H263I,
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28
29 /* various pcm "codecs" */
30 CODEC_ID_PCM_S16LE,
31 CODEC_ID_PCM_S16BE,
32 CODEC_ID_PCM_U16LE,
33 CODEC_ID_PCM_U16BE,
34 CODEC_ID_PCM_S8,
35 CODEC_ID_PCM_U8,
36 CODEC_ID_PCM_MULAW,
37 CODEC_ID_PCM_ALAW,
de6d9b64 38};
84afee34 39#define CODEC_ID_MSMPEG4 CODEC_ID_MSMPEG4V3
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40
41enum CodecType {
42 CODEC_TYPE_VIDEO,
43 CODEC_TYPE_AUDIO,
44};
45
46enum PixelFormat {
9f862d11 47 PIX_FMT_ANY = -1,
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48 PIX_FMT_YUV420P,
49 PIX_FMT_YUV422,
50 PIX_FMT_RGB24,
51 PIX_FMT_BGR24,
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52 PIX_FMT_YUV422P,
53 PIX_FMT_YUV444P,
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54};
55
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56/* currently unused, may be used if 24/32 bits samples ever supported */
57enum SampleFormat {
58 SAMPLE_FMT_S16 = 0, /* signed 16 bits */
59};
60
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61/* in bytes */
62#define AVCODEC_MAX_AUDIO_FRAME_SIZE 18432
63
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64/* motion estimation type, EPZS by default */
65enum Motion_Est_ID {
101bea5f 66 ME_ZERO = 1,
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67 ME_FULL,
68 ME_LOG,
69 ME_PHODS,
70 ME_EPZS,
71 ME_X1
72};
73
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74/* only for ME compatiblity with old apps */
75extern int motion_estimation_method;
76
e4986da9 77/* ME algos sorted by quality */
4b1f4f23 78static const int Motion_Est_QTab[] = { 1, 4, 3, 6, 5, 2 };
de6d9b64 79
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80#define FF_MAX_B_FRAMES 4
81
de6d9b64 82/* encoding support */
ba6802de 83/* note not everything is supported yet */
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84
85#define CODEC_FLAG_HQ 0x0001 /* high quality (non real time) encoding */
86#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
ba6802de 87#define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
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88#define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
89#define CODEC_FLAG_GMC 0x0020 /* use GMC */
60e575ac 90#define CODEC_FLAG_TYPE 0x0040 /* fixed I/P frame type, from avctx->key_frame */
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91/* parent program gurantees that the input for b-frame containing streams is not written to
92 for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
93#define CODEC_FLAG_INPUT_PRESERVED 0x0100
de6d9b64 94
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95/* codec capabilities */
96
97/* decoder can use draw_horiz_band callback */
98#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001
99
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100#define FRAME_RATE_BASE 10000
101
102typedef struct AVCodecContext {
103 int bit_rate;
9cdd6a24 104 int bit_rate_tolerance; /* amount of +- bits (>0)*/
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105 int flags;
106 int sub_id; /* some codecs needs additionnal format info. It is
107 stored there */
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108
109 int me_method; /* ME algorithm used for video coding */
110
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111 /* video only */
112 int frame_rate; /* frames per sec multiplied by FRAME_RATE_BASE */
113 int width, height;
11ce8834 114 int aspect_ratio_info;
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115#define FF_ASPECT_SQUARE 1
116#define FF_ASPECT_4_3_625 2
117#define FF_ASPECT_4_3_525 3
118#define FF_ASPECT_16_9_625 4
119#define FF_ASPECT_16_9_525 5
de6d9b64 120 int gop_size; /* 0 = intra only */
bc657ac3 121 enum PixelFormat pix_fmt; /* pixel format, see PIX_FMT_xxx */
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122
123 /* if non NULL, 'draw_horiz_band' is called by the libavcodec
124 decoder to draw an horizontal band. It improve cache usage. Not
125 all codecs can do that. You must check the codec capabilities
126 before */
127 void (*draw_horiz_band)(struct AVCodecContext *s,
128 UINT8 **src_ptr, int linesize,
129 int y, int width, int height);
130
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131 /* audio only */
132 int sample_rate; /* samples per sec */
133 int channels;
a96b68b7 134 int sample_fmt; /* sample format, currenly unused */
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135
136 /* the following data should not be initialized */
137 int frame_size; /* in samples, initialized when calling 'init' */
138 int frame_number; /* audio or video frame number */
139 int key_frame; /* true if the previous compressed frame was
140 a key frame (intra, or seekable) */
141 int quality; /* quality of the previous encoded frame
142 (between 1 (good) and 31 (bad)) */
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143 float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
144 float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
145 int qmin; /* min qscale */
146 int qmax; /* max qscale */
147 int max_qdiff; /* max qscale difference between frames */
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148 int max_b_frames; /* maximum b frames, the output will be delayed by max_b_frames+1 relative to the input */
149
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150 struct AVCodec *codec;
151 void *priv_data;
152
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153 /* The following data is for RTP friendly coding */
154 /* By now only H.263/H.263+ coder honours this */
155 int rtp_mode; /* 1 for activate RTP friendly-mode */
156 /* highers numbers represent more error-prone */
157 /* enviroments, by now just "1" exist */
158
159 int rtp_payload_size; /* The size of the RTP payload, the coder will */
160 /* do it's best to deliver a chunk with size */
161 /* below rtp_payload_size, the chunk will start */
162 /* with a start code on some codecs like H.263 */
163 /* This doesn't take account of any particular */
164 /* headers inside the transmited RTP payload */
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165
166
167 /* The RTP callcack: This function is called */
168 /* every time the encoder as a packet to send */
169 /* Depends on the encoder if the data starts */
170 /* with a Start Code (it should) H.263 does */
171 void (*rtp_callback)(void *data, int size, int packet_number);
172
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173 /* These are for PSNR calculation, if you set get_psnr to 1 */
174 /* after encoding you will have the PSNR on psnr_y/cb/cr */
175 int get_psnr;
176 float psnr_y;
177 float psnr_cb;
178 float psnr_cr;
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179
180 /* statistics, used for 2-pass encoding */
181 int mv_bits;
182 int header_bits;
183 int i_tex_bits;
184 int p_tex_bits;
185 int i_count;
186 int p_count;
187 int skip_count;
188 int misc_bits; // cbp, mb_type
189 int frame_bits;
644d98a4 190
de6d9b64 191 /* the following fields are ignored */
bf89e6b1 192 void *opaque; /* can be used to carry app specific stuff */
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193 char codec_name[32];
194 int codec_type; /* see CODEC_TYPE_xxx */
195 int codec_id; /* see CODEC_ID_xxx */
196 unsigned int codec_tag; /* codec tag, only used if unknown codec */
197} AVCodecContext;
198
199typedef struct AVCodec {
200 char *name;
201 int type;
202 int id;
203 int priv_data_size;
204 int (*init)(AVCodecContext *);
205 int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
206 int (*close)(AVCodecContext *);
207 int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
208 UINT8 *buf, int buf_size);
bf89e6b1 209 int capabilities;
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210 struct AVCodec *next;
211} AVCodec;
212
213/* three components are given, that's all */
214typedef struct AVPicture {
215 UINT8 *data[3];
216 int linesize[3];
217} AVPicture;
218
219extern AVCodec ac3_encoder;
220extern AVCodec mp2_encoder;
9d36bdc9 221extern AVCodec mp3lame_encoder;
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222extern AVCodec mpeg1video_encoder;
223extern AVCodec h263_encoder;
224extern AVCodec h263p_encoder;
225extern AVCodec rv10_encoder;
226extern AVCodec mjpeg_encoder;
bf89e6b1 227extern AVCodec mpeg4_encoder;
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228extern AVCodec msmpeg4v1_encoder;
229extern AVCodec msmpeg4v2_encoder;
230extern AVCodec msmpeg4v3_encoder;
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231
232extern AVCodec h263_decoder;
bf89e6b1 233extern AVCodec mpeg4_decoder;
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234extern AVCodec msmpeg4v1_decoder;
235extern AVCodec msmpeg4v2_decoder;
236extern AVCodec msmpeg4v3_decoder;
e1a9dbff 237extern AVCodec wmv1_decoder;
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238extern AVCodec mpeg_decoder;
239extern AVCodec h263i_decoder;
240extern AVCodec rv10_decoder;
4e66ab3b 241extern AVCodec mjpeg_decoder;
4b1f4f23 242extern AVCodec mp2_decoder;
a96b68b7 243extern AVCodec mp3_decoder;
de6d9b64 244
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245/* pcm codecs */
246#define PCM_CODEC(id, name) \
247extern AVCodec name ## _decoder; \
248extern AVCodec name ## _encoder;
249
250PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
251PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
252PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
253PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
254PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
255PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
256PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
257PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
258
259#undef PCM_CODEC
260
261/* dummy raw video codec */
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262extern AVCodec rawvideo_codec;
263
264/* the following codecs use external GPL libs */
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265extern AVCodec ac3_decoder;
266
267/* resample.c */
268
269struct ReSampleContext;
270
271typedef struct ReSampleContext ReSampleContext;
272
273ReSampleContext *audio_resample_init(int output_channels, int input_channels,
274 int output_rate, int input_rate);
275int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
276void audio_resample_close(ReSampleContext *s);
277
278/* YUV420 format is assumed ! */
279
280struct ImgReSampleContext;
281
282typedef struct ImgReSampleContext ImgReSampleContext;
283
284ImgReSampleContext *img_resample_init(int output_width, int output_height,
285 int input_width, int input_height);
286void img_resample(ImgReSampleContext *s,
287 AVPicture *output, AVPicture *input);
288
289void img_resample_close(ImgReSampleContext *s);
290
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291void avpicture_fill(AVPicture *picture, UINT8 *ptr,
292 int pix_fmt, int width, int height);
293int avpicture_get_size(int pix_fmt, int width, int height);
294
295/* convert among pixel formats */
296int img_convert(AVPicture *dst, int dst_pix_fmt,
297 AVPicture *src, int pix_fmt,
298 int width, int height);
299
300/* deinterlace a picture */
301int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
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302 int pix_fmt, int width, int height);
303
304/* external high level API */
305
306extern AVCodec *first_avcodec;
307
308void avcodec_init(void);
309
310void register_avcodec(AVCodec *format);
311AVCodec *avcodec_find_encoder(enum CodecID id);
98f3b098 312AVCodec *avcodec_find_encoder_by_name(const char *name);
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313AVCodec *avcodec_find_decoder(enum CodecID id);
314AVCodec *avcodec_find_decoder_by_name(const char *name);
315void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
316
317int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
318int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
319 int *frame_size_ptr,
320 UINT8 *buf, int buf_size);
321int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
322 int *got_picture_ptr,
323 UINT8 *buf, int buf_size);
324int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
325 const short *samples);
326int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
327 const AVPicture *pict);
328
329int avcodec_close(AVCodecContext *avctx);
330
331void avcodec_register_all(void);
a96b68b7 332
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333#ifdef FF_POSTPROCESS
334#ifndef MBC
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335#define MBC 128
336#define MBR 96
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337#endif
338extern int quant_store[MBR+1][MBC+1]; // [Review]
339#endif
340
a96b68b7 341#endif /* AVCODEC_H */