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ffmpeg / libavformat / avienc.c @ 9d53d58e

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1
/*
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 * AVI encoder.
3
 * Copyright (c) 2000 Fabrice Bellard.
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 *
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 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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#include "avformat.h"
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#include "avi.h"
21

    
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/*
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 * TODO: 
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 *  - fill all fields if non streamed (nb_frames for example)
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 */
26

    
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#ifdef CONFIG_ENCODERS
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typedef struct AVIIentry {
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    unsigned int flags, pos, len;
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} AVIIentry;
31

    
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#define AVI_INDEX_CLUSTER_SIZE 16384
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typedef struct AVIIndex {
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    offset_t    indx_start;
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    int         entry;
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    int         ents_allocated;
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    AVIIentry** cluster;
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} AVIIndex;
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typedef struct {
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    offset_t riff_start, movi_list, odml_list;
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    offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
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    int audio_strm_length[MAX_STREAMS];
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    int riff_id;
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    int packet_count[MAX_STREAMS];
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    AVIIndex indexes[MAX_STREAMS];
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} AVIContext;
50

    
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) 
52
{
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    int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
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    int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
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    return &idx->cluster[cl][id];
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}
57

    
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offset_t start_tag(ByteIOContext *pb, const char *tag)
59
{
60
    put_tag(pb, tag);
61
    put_le32(pb, 0);
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    return url_ftell(pb);
63
}
64

    
65
void end_tag(ByteIOContext *pb, offset_t start)
66
{
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    offset_t pos;
68

    
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    pos = url_ftell(pb);
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    url_fseek(pb, start - 4, SEEK_SET);
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    put_le32(pb, (uint32_t)(pos - start));
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    url_fseek(pb, pos, SEEK_SET);
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}
74
#endif //CONFIG_ENCODERS
75

    
76
/* Note: when encoding, the first matching tag is used, so order is
77
   important if multiple tags possible for a given codec. */
78
const CodecTag codec_bmp_tags[] = {
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    { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
80

    
81
    { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
84

    
85
    /* added based on MPlayer */
86
    { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
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    { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
88

    
89
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
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    { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
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    { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
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    { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
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    { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
94
    { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
95

    
96
    /* added based on MPlayer */
97
    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
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    { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
99
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
100
    { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
101

    
102
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
103
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, 
104

    
105
    /* added based on MPlayer */
106
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, 
110
    { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, 
112
    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, 
113

    
114
    { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, 
115

    
116
    /* added based on MPlayer */
117
    { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
118
 
119
    { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, 
120

    
121
    { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, 
122

    
123
    /* added based on MPlayer */
124
    { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, 
125
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, 
126
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, 
127
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, 
128
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
129
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, 
130
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, 
131
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, 
132
    { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, 
133
    { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, 
134
    { CODEC_ID_MPEG1VIDEO, 0x10000001 }, 
135
    { CODEC_ID_MPEG2VIDEO, 0x10000002 }, 
136
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
137
    { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
138
    { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
139
    { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
140
    { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
141
    { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
142
    { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
143
    { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
144
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
145
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
146
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
147
    { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
148
    { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
149
    { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
150
    { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
151
    { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
152
    { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
153
    { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
154
    { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
155
    { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
156
    { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
157
    { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
158
    { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
159
    { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
160
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
161
    { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
162
    { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
163
    { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
164
    { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
165
    { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
166
    { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
167
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
168
    { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
169
    { CODEC_ID_RAWVIDEO, 0 },
170
    { 0, 0 },
171
};
172

    
173
unsigned int codec_get_tag(const CodecTag *tags, int id)
174
{
175
    while (tags->id != 0) {
176
        if (tags->id == id)
177
            return tags->tag;
178
        tags++;
179
    }
180
    return 0;
181
}
182

    
183
static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
184
{
185
    while (tags->id != 0) {
186
        if (!tags->invalid_asf && tags->id == id)
187
            return tags->tag;
188
        tags++;
189
    }
190
    return 0;
191
}
192

    
193
enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
194
{
195
    while (tags->id != 0) {
196
        if(   toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
197
           && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
198
           && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
199
           && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
200
            return tags->id;
201
        tags++;
202
    }
203
    return CODEC_ID_NONE;
204
}
205

    
206
unsigned int codec_get_bmp_tag(int id)
207
{
208
    return codec_get_tag(codec_bmp_tags, id);
209
}
210

    
211
unsigned int codec_get_wav_tag(int id)
212
{
213
    return codec_get_tag(codec_wav_tags, id);
214
}
215

    
216
enum CodecID codec_get_bmp_id(unsigned int tag)
217
{
218
    return codec_get_id(codec_bmp_tags, tag);
219
}
220

    
221
enum CodecID codec_get_wav_id(unsigned int tag)
222
{
223
    return codec_get_id(codec_wav_tags, tag);
224
}
225

    
226
#ifdef CONFIG_ENCODERS
227
/* BITMAPINFOHEADER header */
228
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
229
{
230
    put_le32(pb, 40 + enc->extradata_size); /* size */
231
    put_le32(pb, enc->width);
232
    put_le32(pb, enc->height);
233
    put_le16(pb, 1); /* planes */
234
    
235
    put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
236
    /* compression type */
237
    put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
238
    put_le32(pb, enc->width * enc->height * 3);
239
    put_le32(pb, 0);
240
    put_le32(pb, 0);
241
    put_le32(pb, 0);
242
    put_le32(pb, 0);
243
    
244
    put_buffer(pb, enc->extradata, enc->extradata_size);
245

    
246
    if (enc->extradata_size & 1)
247
        put_byte(pb, 0);
248
}
249

    
250
static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
251
{
252
    switch(stream->codec_id) {
253
    case CODEC_ID_PCM_S16LE:
254
       *au_scale = *au_ssize = 2*stream->channels;
255
       *au_byterate = *au_ssize * stream->sample_rate;
256
        break;
257
    case CODEC_ID_PCM_U8:
258
    case CODEC_ID_PCM_ALAW:
259
    case CODEC_ID_PCM_MULAW:
260
        *au_scale = *au_ssize = stream->channels;
261
        *au_byterate = *au_ssize * stream->sample_rate;
262
        break;
263
    case CODEC_ID_MP2:
264
        *au_ssize = 1;
265
        *au_scale = 1;
266
        *au_byterate = stream->bit_rate / 8;
267
    case CODEC_ID_MP3:
268
        *au_ssize = 1;
269
        *au_scale = 1;
270
        *au_byterate = stream->bit_rate / 8;    
271
    default:
272
        *au_ssize = 1;
273
        *au_scale = 1; 
274
        *au_byterate = stream->bit_rate / 8;
275
        break;
276
    }
277
}
278

    
279
static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb, 
280
                                   const char* riff_tag, const char* list_tag)
281
{
282
    offset_t loff;
283
    int i;
284
    
285
    avi->riff_id++;
286
    for (i=0; i<MAX_STREAMS; i++)
287
         avi->indexes[i].entry = 0;
288
    
289
    avi->riff_start = start_tag(pb, "RIFF");
290
    put_tag(pb, riff_tag);
291
    loff = start_tag(pb, "LIST");
292
    put_tag(pb, list_tag);
293
    return loff;
294
}
295

    
296
static unsigned char* avi_stream2fourcc(unsigned char* tag, int index, 
297
                                        enum CodecType type)
298
{
299
    tag[0] = '0';
300
    tag[1] = '0' + index;
301
    if (type == CODEC_TYPE_VIDEO) {
302
        tag[2] = 'd';
303
        tag[3] = 'c';
304
    } else {
305
        tag[2] = 'w';
306
        tag[3] = 'b';
307
    }
308
    tag[4] = '\0';
309
    return tag;
310
}
311

    
312
static int avi_write_header(AVFormatContext *s)
313
{
314
    AVIContext *avi = s->priv_data;
315
    ByteIOContext *pb = &s->pb;
316
    int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
317
    AVCodecContext *stream, *video_enc;
318
    offset_t list1, list2, strh, strf;
319

    
320
    /* header list */
321
    avi->riff_id = 0;
322
    list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
323

    
324
    /* avi header */
325
    put_tag(pb, "avih");
326
    put_le32(pb, 14 * 4);
327
    bitrate = 0;
328

    
329
    video_enc = NULL;
330
    for(n=0;n<s->nb_streams;n++) {
331
        stream = &s->streams[n]->codec;
332
        bitrate += stream->bit_rate;
333
        if (stream->codec_type == CODEC_TYPE_VIDEO)
334
            video_enc = stream;
335
    }
336
    
337
    nb_frames = 0;
338

    
339
    if(video_enc){
340
        put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
341
    } else {
342
        put_le32(pb, 0);
343
    }
344
    put_le32(pb, bitrate / 8); /* XXX: not quite exact */
345
    put_le32(pb, 0); /* padding */
346
    put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
347
    avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
348
    put_le32(pb, nb_frames); /* nb frames, filled later */
349
    put_le32(pb, 0); /* initial frame */
350
    put_le32(pb, s->nb_streams); /* nb streams */
351
    put_le32(pb, 1024 * 1024); /* suggested buffer size */
352
    if(video_enc){    
353
    put_le32(pb, video_enc->width);
354
    put_le32(pb, video_enc->height);
355
    } else {
356
        put_le32(pb, 0);
357
        put_le32(pb, 0);
358
    }        
359
    put_le32(pb, 0); /* reserved */
360
    put_le32(pb, 0); /* reserved */
361
    put_le32(pb, 0); /* reserved */
362
    put_le32(pb, 0); /* reserved */
363
    
364
    /* stream list */
365
    for(i=0;i<n;i++) {
366
        list2 = start_tag(pb, "LIST");
367
        put_tag(pb, "strl");
368
    
369
        stream = &s->streams[i]->codec;
370

    
371
        /* FourCC should really be set by the codec itself */
372
        if (! stream->codec_tag) {
373
            stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
374
        }
375

    
376
        /* stream generic header */
377
        strh = start_tag(pb, "strh");
378
        switch(stream->codec_type) {
379
        case CODEC_TYPE_VIDEO:
380
            put_tag(pb, "vids");
381
            put_le32(pb, stream->codec_tag);
382
            put_le32(pb, 0); /* flags */
383
            put_le16(pb, 0); /* priority */
384
            put_le16(pb, 0); /* language */
385
            put_le32(pb, 0); /* initial frame */
386
            
387
            put_le32(pb, stream->frame_rate_base); /* scale */
388
            put_le32(pb, stream->frame_rate); /* rate */
389
            av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
390

    
391
            put_le32(pb, 0); /* start */
392
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
393
            put_le32(pb, nb_frames); /* length, XXX: fill later */
394
            put_le32(pb, 1024 * 1024); /* suggested buffer size */
395
            put_le32(pb, -1); /* quality */
396
            put_le32(pb, stream->width * stream->height * 3); /* sample size */
397
            put_le16(pb, 0);
398
            put_le16(pb, 0);
399
            put_le16(pb, stream->width);
400
            put_le16(pb, stream->height);
401
            break;
402
        case CODEC_TYPE_AUDIO:
403
            put_tag(pb, "auds");
404
            put_le32(pb, 1); /* tag */
405
            put_le32(pb, 0); /* flags */
406
            put_le16(pb, 0); /* priority */
407
            put_le16(pb, 0); /* language */
408
            put_le32(pb, 0); /* initial frame */
409
            parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
410
            put_le32(pb, au_scale); /* scale */
411
            put_le32(pb, au_byterate); /* rate */
412
//            av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
413
            put_le32(pb, 0); /* start */
414
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
415
            put_le32(pb, 0); /* length, XXX: filled later */
416
            put_le32(pb, 12 * 1024); /* suggested buffer size */
417
            put_le32(pb, -1); /* quality */
418
            put_le32(pb, au_ssize); /* sample size */
419
            put_le32(pb, 0);
420
            put_le32(pb, 0);
421
            break;
422
        default:
423
            av_abort();
424
        }
425
        end_tag(pb, strh);
426

    
427
        strf = start_tag(pb, "strf");
428
        switch(stream->codec_type) {
429
        case CODEC_TYPE_VIDEO:
430
            put_bmp_header(pb, stream, codec_bmp_tags, 0);
431
            break;
432
        case CODEC_TYPE_AUDIO:
433
            if (put_wav_header(pb, stream) < 0) {
434
                av_free(avi);
435
                return -1;
436
            }
437
            break;
438
        default:
439
            av_abort();
440
        }
441
        end_tag(pb, strf);
442
        
443
        if (!url_is_streamed(pb)) {
444
            unsigned char tag[5];
445
            int j;
446
    
447
            /* Starting to lay out AVI OpenDML master index. 
448
             * We want to make it JUNK entry for now, since we'd
449
             * like to get away without making AVI an OpenDML one 
450
             * for compatibility reasons.
451
             */
452
            avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
453
            avi->indexes[i].indx_start = start_tag(pb, "JUNK"); 
454
            put_le16(pb, 4);        /* wLongsPerEntry */
455
            put_byte(pb, 0);        /* bIndexSubType (0 == frame index) */
456
            put_byte(pb, 0);        /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
457
            put_le32(pb, 0);        /* nEntriesInUse (will fill out later on) */
458
            put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
459
                                    /* dwChunkId */
460
            put_le64(pb, 0);        /* dwReserved[3]
461
            put_le32(pb, 0);           Must be 0.    */
462
            for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
463
                 put_le64(pb, 0);
464
            end_tag(pb, avi->indexes[i].indx_start);
465
        }
466
        
467
        end_tag(pb, list2);
468
    }
469
    
470
    if (!url_is_streamed(pb)) {
471
        /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
472
        avi->odml_list = start_tag(pb, "JUNK");
473
        put_tag(pb, "odml");
474
        put_tag(pb, "dmlh");
475
        put_le32(pb, 248);
476
        for (i = 0; i < 248; i+= 4)
477
             put_le32(pb, 0);
478
        end_tag(pb, avi->odml_list);
479
    }
480

    
481
    end_tag(pb, list1);
482
    
483
    avi->movi_list = start_tag(pb, "LIST");
484
    put_tag(pb, "movi");
485

    
486
    put_flush_packet(pb);
487

    
488
    return 0;
489
}
490

    
491
static int avi_write_ix(AVFormatContext *s)
492
{
493
    ByteIOContext *pb = &s->pb;
494
    AVIContext *avi = s->priv_data;
495
    unsigned char tag[5];
496
    unsigned char ix_tag[] = "ix00";
497
    int i, j;
498
    
499
    if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
500
        return -1;
501
    
502
    for (i=0;i<s->nb_streams;i++) {
503
         offset_t ix, pos;
504
         
505
         avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
506
         ix_tag[3] = '0' + i;
507
         
508
         /* Writing AVI OpenDML leaf index chunk */
509
         ix = url_ftell(pb); 
510
         put_tag(pb, &ix_tag[0]);     /* ix?? */
511
         put_le32(pb, avi->indexes[i].entry * 8 + 24); 
512
                                      /* chunk size */
513
         put_le16(pb, 2);             /* wLongsPerEntry */
514
         put_byte(pb, 0);             /* bIndexSubType (0 == frame index) */ 
515
         put_byte(pb, 1);             /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
516
         put_le32(pb, avi->indexes[i].entry);          
517
                                      /* nEntriesInUse */
518
         put_tag(pb, &tag[0]);        /* dwChunkId */
519
         put_le64(pb, avi->movi_list);/* qwBaseOffset */
520
         put_le32(pb, 0);             /* dwReserved_3 (must be 0) */
521

    
522
         for (j=0; j<avi->indexes[i].entry; j++) {
523
             AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
524
             put_le32(pb, ie->pos + 8);
525
             put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
526
                          (ie->flags & 0x10 ? 0 : 0x80000000));
527
         }
528
         put_flush_packet(pb);
529
         pos = url_ftell(pb);
530
        
531
         /* Updating one entry in the AVI OpenDML master index */
532
         url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
533
         put_tag(pb, "indx");                 /* enabling this entry */
534
         url_fskip(pb, 8);
535
         put_le32(pb, avi->riff_id);          /* nEntriesInUse */
536
         url_fskip(pb, 16*avi->riff_id);
537
         put_le64(pb, ix);                    /* qwOffset */
538
         put_le32(pb, pos - ix);              /* dwSize */
539
         put_le32(pb, avi->indexes[i].entry); /* dwDuration */
540

    
541
         url_fseek(pb, pos, SEEK_SET);
542
    }
543
    return 0;
544
}
545

    
546
static int avi_write_idx1(AVFormatContext *s)
547
{
548
    ByteIOContext *pb = &s->pb;
549
    AVIContext *avi = s->priv_data;
550
    offset_t file_size, idx_chunk;
551
    int i, n, nb_frames, au_byterate, au_ssize, au_scale;
552
    AVCodecContext *stream;
553
    unsigned char tag[5];
554

    
555
    if (!url_is_streamed(pb)) {
556
        AVIIentry* ie = 0, *tie;
557
        int entry[MAX_STREAMS];
558
        int empty, stream_id = -1;
559

    
560
        idx_chunk = start_tag(pb, "idx1");
561
        memset(&entry[0], 0, sizeof(entry));
562
        do {
563
            empty = 1;
564
            for (i=0; i<s->nb_streams; i++) {
565
                 if (avi->indexes[i].entry <= entry[i])
566
                     continue;
567
                 
568
                 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
569
                 if (empty || tie->pos < ie->pos) {
570
                     ie = tie; 
571
                     stream_id = i;
572
                 }
573
                 empty = 0;
574
            }
575
            if (!empty) {
576
                avi_stream2fourcc(&tag[0], stream_id, 
577
                                  s->streams[stream_id]->codec.codec_type); 
578
                put_tag(pb, &tag[0]);
579
                put_le32(pb, ie->flags);
580
                put_le32(pb, ie->pos);
581
                put_le32(pb, ie->len);
582
                entry[stream_id]++;
583
            }
584
        } while (!empty);
585
        end_tag(pb, idx_chunk);
586

    
587
        /* Fill in frame/sample counters */
588
        file_size = url_ftell(pb);
589
        nb_frames = 0;
590
        for(n=0;n<s->nb_streams;n++) {
591
            if (avi->frames_hdr_strm[n] != 0) {
592
                stream = &s->streams[n]->codec;
593
                url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
594
                if (stream->codec_type == CODEC_TYPE_VIDEO) {
595
                    put_le32(pb, stream->frame_number); 
596
                    if (nb_frames < stream->frame_number)
597
                        nb_frames = stream->frame_number;
598
                } else {
599
                    if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
600
                        put_le32(pb, stream->frame_number);
601
                        nb_frames += stream->frame_number;
602
                    } else {
603
                        parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
604
                        put_le32(pb, avi->audio_strm_length[n] / au_ssize);
605
                    }
606
                }
607
            }
608
       }
609
       if (avi->frames_hdr_all != 0) {
610
           url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
611
           put_le32(pb, nb_frames); 
612
       }
613
       url_fseek(pb, file_size, SEEK_SET);
614
    }
615
    return 0;
616
}
617

    
618
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
619
{
620
    AVIContext *avi = s->priv_data;
621
    ByteIOContext *pb = &s->pb;
622
    unsigned char tag[5];
623
    unsigned int flags=0;
624
    const int stream_index= pkt->stream_index;
625
    AVCodecContext *enc= &s->streams[stream_index]->codec;
626
    int size= pkt->size;
627

    
628
//    av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
629
    while(enc->codec_type == CODEC_TYPE_VIDEO && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
630
        AVPacket empty_packet;
631

    
632
        av_init_packet(&empty_packet);
633
        empty_packet.size= 0;
634
        empty_packet.data= NULL;
635
        empty_packet.stream_index= stream_index;
636
        avi_write_packet(s, &empty_packet);
637
//        av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
638
    }
639
    avi->packet_count[stream_index]++;
640

    
641
    if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) { 
642
        avi_write_ix(s);
643
        end_tag(pb, avi->movi_list);
644
        
645
        if (avi->riff_id == 1)
646
            avi_write_idx1(s);
647

    
648
        end_tag(pb, avi->riff_start);
649
        avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
650
    }
651
    
652
    avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
653
    if(pkt->flags&PKT_FLAG_KEY)
654
        flags = 0x10;
655
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
656
       avi->audio_strm_length[stream_index] += size;
657
    }
658

    
659
    if (!url_is_streamed(&s->pb)) {
660
        AVIIndex* idx = &avi->indexes[stream_index];
661
        int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
662
        int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
663
        if (idx->ents_allocated <= idx->entry) {
664
            idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*)); 
665
            if (!idx->cluster)
666
                return -1;
667
            idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
668
            if (!idx->cluster[cl])
669
                return -1;
670
            idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
671
        }
672
         
673
        idx->cluster[cl][id].flags = flags; 
674
        idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
675
        idx->cluster[cl][id].len = size;
676
        idx->entry++;
677
    }
678
    
679
    put_buffer(pb, tag, 4);
680
    put_le32(pb, size);
681
    put_buffer(pb, pkt->data, size);
682
    if (size & 1)
683
        put_byte(pb, 0);
684

    
685
    put_flush_packet(pb);
686
    return 0;
687
}
688

    
689
static int avi_write_trailer(AVFormatContext *s)
690
{
691
    AVIContext *avi = s->priv_data;
692
    ByteIOContext *pb = &s->pb;
693
    int res = 0;
694
    int i, j, n, nb_frames;
695
    offset_t file_size;
696

    
697
    if (avi->riff_id == 1) {
698
        end_tag(pb, avi->movi_list);
699
        res = avi_write_idx1(s);
700
        end_tag(pb, avi->riff_start);
701
    } else {
702
        avi_write_ix(s);
703
        end_tag(pb, avi->movi_list);
704
        end_tag(pb, avi->riff_start);
705

    
706
        file_size = url_ftell(pb);
707
        url_fseek(pb, avi->odml_list - 8, SEEK_SET);
708
        put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
709
        url_fskip(pb, 16);
710

    
711
        for (n=nb_frames=0;n<s->nb_streams;n++) {
712
             AVCodecContext *stream = &s->streams[n]->codec;
713
             if (stream->codec_type == CODEC_TYPE_VIDEO) {
714
                 if (nb_frames < stream->frame_number)
715
                     nb_frames = stream->frame_number;
716
             } else {
717
                 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
718
                     nb_frames += stream->frame_number;
719
                }
720
            }
721
        }
722
        put_le32(pb, nb_frames);
723
        url_fseek(pb, file_size, SEEK_SET);
724
    }
725
    put_flush_packet(pb);
726

    
727
    for (i=0; i<MAX_STREAMS; i++) {
728
         for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
729
              av_free(avi->indexes[i].cluster[j]);
730
         av_free(avi->indexes[i].cluster);
731
         avi->indexes[i].cluster = NULL;
732
         avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
733
    }
734
    
735
    return res;
736
}
737

    
738
static AVOutputFormat avi_oformat = {
739
    "avi",
740
    "avi format",
741
    "video/x-msvideo",
742
    "avi",
743
    sizeof(AVIContext),
744
    CODEC_ID_MP2,
745
    CODEC_ID_MPEG4,
746
    avi_write_header,
747
    avi_write_packet,
748
    avi_write_trailer,
749
};
750

    
751
int avienc_init(void)
752
{
753
    av_register_output_format(&avi_oformat);
754
    return 0;
755
}
756
#endif //CONFIG_ENCODERS