huffyuv 4cc & -strict
[libav.git] / libavformat / avienc.c
1 /*
2 * AVI encoder.
3 * Copyright (c) 2000 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19 #include "avformat.h"
20 #include "avi.h"
21
22 /*
23 * TODO:
24 * - fill all fields if non streamed (nb_frames for example)
25 */
26
27 typedef struct AVIIndex {
28 unsigned char tag[4];
29 unsigned int flags, pos, len;
30 struct AVIIndex *next;
31 } AVIIndex;
32
33 typedef struct {
34 offset_t movi_list, frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
35 int audio_strm_length[MAX_STREAMS];
36 AVIIndex *first, *last;
37 } AVIContext;
38
39 offset_t start_tag(ByteIOContext *pb, const char *tag)
40 {
41 put_tag(pb, tag);
42 put_le32(pb, 0);
43 return url_ftell(pb);
44 }
45
46 void end_tag(ByteIOContext *pb, offset_t start)
47 {
48 offset_t pos;
49
50 pos = url_ftell(pb);
51 url_fseek(pb, start - 4, SEEK_SET);
52 put_le32(pb, (UINT32)(pos - start));
53 url_fseek(pb, pos, SEEK_SET);
54 }
55
56 /* Note: when encoding, the first matching tag is used, so order is
57 important if multiple tags possible for a given codec. */
58 const CodecTag codec_bmp_tags[] = {
59 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
60 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
61 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
62 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
63 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
64 { CODEC_ID_MPEG4, MKTAG('d', 'i', 'v', 'x'), .invalid_asf = 1 },
65 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
66 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
67 { CODEC_ID_MPEG4, MKTAG('x', 'v', 'i', 'd'), .invalid_asf = 1 },
68 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 's'), .invalid_asf = 1 },
69 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
70 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
71 { CODEC_ID_MPEG4, MKTAG('m', '4', 's', '2') },
72 { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
73 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
74 { CODEC_ID_MSMPEG4V3, MKTAG('d', 'i', 'v', '3'), .invalid_asf = 1 },
75 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
76 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
77 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
78 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
79 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
80 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
81 { CODEC_ID_DVVIDEO, MKTAG('D', 'V', 'S', 'D') },
82 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
83 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
84 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
85 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
86 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
87 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
88 { CODEC_ID_HUFFYUV, MKTAG('h', 'f', 'y', 'u') },
89 { 0, 0 },
90 };
91
92 unsigned int codec_get_tag(const CodecTag *tags, int id)
93 {
94 while (tags->id != 0) {
95 if (tags->id == id)
96 return tags->tag;
97 tags++;
98 }
99 return 0;
100 }
101
102 static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
103 {
104 while (tags->id != 0) {
105 if (!tags->invalid_asf && tags->id == id)
106 return tags->tag;
107 tags++;
108 }
109 return 0;
110 }
111
112 int codec_get_id(const CodecTag *tags, unsigned int tag)
113 {
114 while (tags->id != 0) {
115 if (tags->tag == tag)
116 return tags->id;
117 tags++;
118 }
119 return 0;
120 }
121
122 unsigned int codec_get_bmp_tag(int id)
123 {
124 return codec_get_tag(codec_bmp_tags, id);
125 }
126
127 /* BITMAPINFOHEADER header */
128 void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
129 {
130 put_le32(pb, 40); /* size */
131 put_le32(pb, enc->width);
132 put_le32(pb, enc->height);
133 put_le16(pb, 1); /* planes */
134 put_le16(pb, 24); /* depth */
135 /* compression type */
136 put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : codec_get_tag(tags, enc->codec_id));
137 put_le32(pb, enc->width * enc->height * 3);
138 put_le32(pb, 0);
139 put_le32(pb, 0);
140 put_le32(pb, 0);
141 put_le32(pb, 0);
142 }
143
144 static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
145 {
146 switch(stream->codec_id) {
147 case CODEC_ID_PCM_S16LE:
148 *au_scale = *au_ssize = 2*stream->channels;
149 *au_byterate = *au_ssize * stream->sample_rate;
150 break;
151 case CODEC_ID_PCM_U8:
152 case CODEC_ID_PCM_ALAW:
153 case CODEC_ID_PCM_MULAW:
154 *au_scale = *au_ssize = stream->channels;
155 *au_byterate = *au_ssize * stream->sample_rate;
156 break;
157 case CODEC_ID_MP2:
158 *au_ssize = 1;
159 *au_scale = 1;
160 *au_byterate = stream->bit_rate / 8;
161 case CODEC_ID_MP3LAME:
162 *au_ssize = 1;
163 *au_scale = 1;
164 *au_byterate = stream->bit_rate / 8;
165 default:
166 *au_ssize = 1;
167 *au_scale = 1;
168 *au_byterate = stream->bit_rate / 8;
169 break;
170 }
171 }
172
173 static int avi_write_header(AVFormatContext *s)
174 {
175 AVIContext *avi = s->priv_data;
176 ByteIOContext *pb = &s->pb;
177 int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
178 AVCodecContext *stream, *video_enc;
179 offset_t list1, list2, strh, strf;
180
181 put_tag(pb, "RIFF");
182 put_le32(pb, 0); /* file length */
183 put_tag(pb, "AVI ");
184
185 /* header list */
186 list1 = start_tag(pb, "LIST");
187 put_tag(pb, "hdrl");
188
189 /* avi header */
190 put_tag(pb, "avih");
191 put_le32(pb, 14 * 4);
192 bitrate = 0;
193
194 video_enc = NULL;
195 for(n=0;n<s->nb_streams;n++) {
196 stream = &s->streams[n]->codec;
197 bitrate += stream->bit_rate;
198 if (stream->codec_type == CODEC_TYPE_VIDEO)
199 video_enc = stream;
200 }
201
202 if (!video_enc) {
203 av_free(avi);
204 return -1;
205 }
206 nb_frames = 0;
207
208 put_le32(pb, (UINT32)(INT64_C(1000000) * FRAME_RATE_BASE / video_enc->frame_rate));
209 put_le32(pb, bitrate / 8); /* XXX: not quite exact */
210 put_le32(pb, 0); /* padding */
211 put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
212 avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
213 put_le32(pb, nb_frames); /* nb frames, filled later */
214 put_le32(pb, 0); /* initial frame */
215 put_le32(pb, s->nb_streams); /* nb streams */
216 put_le32(pb, 1024 * 1024); /* suggested buffer size */
217 put_le32(pb, video_enc->width);
218 put_le32(pb, video_enc->height);
219 put_le32(pb, 0); /* reserved */
220 put_le32(pb, 0); /* reserved */
221 put_le32(pb, 0); /* reserved */
222 put_le32(pb, 0); /* reserved */
223
224 /* stream list */
225 for(i=0;i<n;i++) {
226 list2 = start_tag(pb, "LIST");
227 put_tag(pb, "strl");
228
229 stream = &s->streams[i]->codec;
230
231 /* stream generic header */
232 strh = start_tag(pb, "strh");
233 switch(stream->codec_type) {
234 case CODEC_TYPE_VIDEO:
235 put_tag(pb, "vids");
236 put_le32(pb, codec_get_bmp_tag(stream->codec_id));
237 put_le32(pb, 0); /* flags */
238 put_le16(pb, 0); /* priority */
239 put_le16(pb, 0); /* language */
240 put_le32(pb, 0); /* initial frame */
241 put_le32(pb, 1000); /* scale */
242 put_le32(pb, (1000 * stream->frame_rate) / FRAME_RATE_BASE); /* rate */
243 put_le32(pb, 0); /* start */
244 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
245 put_le32(pb, nb_frames); /* length, XXX: fill later */
246 put_le32(pb, 1024 * 1024); /* suggested buffer size */
247 put_le32(pb, -1); /* quality */
248 put_le32(pb, stream->width * stream->height * 3); /* sample size */
249 put_le16(pb, 0);
250 put_le16(pb, 0);
251 put_le16(pb, stream->width);
252 put_le16(pb, stream->height);
253 break;
254 case CODEC_TYPE_AUDIO:
255 put_tag(pb, "auds");
256 put_le32(pb, 1); /* tag */
257 put_le32(pb, 0); /* flags */
258 put_le16(pb, 0); /* priority */
259 put_le16(pb, 0); /* language */
260 put_le32(pb, 0); /* initial frame */
261 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
262 put_le32(pb, au_scale); /* scale */
263 put_le32(pb, au_byterate); /* rate */
264 put_le32(pb, 0); /* start */
265 avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
266 put_le32(pb, 0); /* length, XXX: filled later */
267 put_le32(pb, 12 * 1024); /* suggested buffer size */
268 put_le32(pb, -1); /* quality */
269 put_le32(pb, au_ssize); /* sample size */
270 put_le32(pb, 0);
271 put_le32(pb, 0);
272 break;
273 default:
274 av_abort();
275 }
276 end_tag(pb, strh);
277
278 strf = start_tag(pb, "strf");
279 switch(stream->codec_type) {
280 case CODEC_TYPE_VIDEO:
281 put_bmp_header(pb, stream, codec_bmp_tags, 0);
282 break;
283 case CODEC_TYPE_AUDIO:
284 if (put_wav_header(pb, stream) < 0) {
285 av_free(avi);
286 return -1;
287 }
288 break;
289 default:
290 av_abort();
291 }
292 end_tag(pb, strf);
293 end_tag(pb, list2);
294 }
295
296 end_tag(pb, list1);
297
298 avi->movi_list = start_tag(pb, "LIST");
299 avi->first = NULL;
300 avi->last = NULL;
301 put_tag(pb, "movi");
302
303 put_flush_packet(pb);
304
305 return 0;
306 }
307
308 static int avi_write_packet(AVFormatContext *s, int stream_index,
309 UINT8 *buf, int size, int force_pts)
310 {
311 AVIContext *avi = s->priv_data;
312 ByteIOContext *pb = &s->pb;
313 AVIIndex *idx;
314 unsigned char tag[5];
315 unsigned int flags;
316 AVCodecContext *enc;
317
318 enc = &s->streams[stream_index]->codec;
319
320 tag[0] = '0';
321 tag[1] = '0' + stream_index;
322 if (enc->codec_type == CODEC_TYPE_VIDEO) {
323 tag[2] = 'd';
324 tag[3] = 'c';
325 flags = enc->coded_frame->key_frame ? 0x10 : 0x00;
326 } else {
327 tag[2] = 'w';
328 tag[3] = 'b';
329 flags = 0x10;
330 }
331 if (enc->codec_type == CODEC_TYPE_AUDIO)
332 avi->audio_strm_length[stream_index] += size;
333
334 if (!url_is_streamed(&s->pb)) {
335 idx = av_malloc(sizeof(AVIIndex));
336 memcpy(idx->tag, tag, 4);
337 idx->flags = flags;
338 idx->pos = url_ftell(pb) - avi->movi_list;
339 idx->len = size;
340 idx->next = NULL;
341 if (!avi->last)
342 avi->first = idx;
343 else
344 avi->last->next = idx;
345 avi->last = idx;
346 }
347
348 put_buffer(pb, tag, 4);
349 put_le32(pb, size);
350 put_buffer(pb, buf, size);
351 if (size & 1)
352 put_byte(pb, 0);
353
354 put_flush_packet(pb);
355 return 0;
356 }
357
358 static int avi_write_trailer(AVFormatContext *s)
359 {
360 ByteIOContext *pb = &s->pb;
361 AVIContext *avi = s->priv_data;
362 offset_t file_size, idx_chunk;
363 int n, nb_frames, au_byterate, au_ssize, au_scale;
364 AVCodecContext *stream;
365 AVIIndex *idx;
366
367 if (!url_is_streamed(&s->pb)) {
368 end_tag(pb, avi->movi_list);
369
370 idx_chunk = start_tag(pb, "idx1");
371 idx = avi->first;
372 while (idx != NULL) {
373 put_buffer(pb, idx->tag, 4);
374 put_le32(pb, idx->flags);
375 put_le32(pb, idx->pos);
376 put_le32(pb, idx->len);
377 idx = idx->next;
378 }
379 end_tag(pb, idx_chunk);
380
381 /* update file size */
382 file_size = url_ftell(pb);
383 url_fseek(pb, 4, SEEK_SET);
384 put_le32(pb, (UINT32)(file_size - 8));
385
386 /* Fill in frame/sample counters */
387 nb_frames = 0;
388 for(n=0;n<s->nb_streams;n++) {
389 if (avi->frames_hdr_strm[n] != 0) {
390 stream = &s->streams[n]->codec;
391 url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
392 if (stream->codec_type == CODEC_TYPE_VIDEO) {
393 put_le32(pb, stream->frame_number);
394 if (nb_frames < stream->frame_number)
395 nb_frames = stream->frame_number;
396 } else {
397 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3LAME) {
398 put_le32(pb, stream->frame_number);
399 nb_frames += stream->frame_number;
400 } else {
401 parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
402 put_le32(pb, avi->audio_strm_length[n] / au_ssize);
403 }
404 }
405 }
406 }
407 if (avi->frames_hdr_all != 0) {
408 url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
409 put_le32(pb, nb_frames);
410 }
411 url_fseek(pb, file_size, SEEK_SET);
412 }
413 put_flush_packet(pb);
414 return 0;
415 }
416
417 static AVOutputFormat avi_oformat = {
418 "avi",
419 "avi format",
420 "video/x-msvideo",
421 "avi",
422 sizeof(AVIContext),
423 CODEC_ID_MP2,
424 CODEC_ID_MSMPEG4V3,
425 avi_write_header,
426 avi_write_packet,
427 avi_write_trailer,
428 };
429
430 int avienc_init(void)
431 {
432 av_register_output_format(&avi_oformat);
433 return 0;
434 }