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ffmpeg / libavformat / avienc.c @ d0a0bbd2

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1
/*
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 * AVI encoder.
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 * Copyright (c) 2000 Fabrice Bellard.
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 *
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 * This library is free software; you can redistribute it and/or
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 * 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;
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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;
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id) 
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{
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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);
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    put_le32(pb, 0);
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    return url_ftell(pb);
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}
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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}
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#endif //CONFIG_ENCODERS
75

    
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/* 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') },
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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 */
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    { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
85

    
86
    /* added based on MPlayer */
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    { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
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    { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
89

    
90
    { 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') },
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    { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
96

    
97
    /* added based on MPlayer */
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    { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
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    { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
100
    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
101
    { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
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103
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
104
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, 
105

    
106
    /* added based on MPlayer */
107
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, 
108
    { 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') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, 
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    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, 
113
    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, 
114

    
115
    { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, 
116

    
117
    /* added based on MPlayer */
118
    { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
119
 
120
    { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, 
121

    
122
    { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, 
123

    
124
    /* added based on MPlayer */
125
    { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, 
126
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, 
127
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, 
128
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, 
129
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
130
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, 
131
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, 
132
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, 
133
    { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, 
134
    { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, 
135
    { CODEC_ID_MPEG1VIDEO, 0x10000001 }, 
136
    { CODEC_ID_MPEG2VIDEO, 0x10000002 }, 
137
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
138
    { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
139
    { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
140
    { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
141
    { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
142
    { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
143
    { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
144
    { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
145
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
146
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
147
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
148
    { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
149
    { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
150
    { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
151
    { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
152
    { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
153
    { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
154
    { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
155
    { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
156
    { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
157
    { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
158
    { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
159
    { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
160
    { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
161
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
162
    { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
163
    { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
164
    { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
165
    { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
166
    { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
167
    { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
168
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
169
    { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
170
    { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
171
    { CODEC_ID_RAWVIDEO, 0 },
172
    { 0, 0 },
173
};
174

    
175
unsigned int codec_get_tag(const CodecTag *tags, int id)
176
{
177
    while (tags->id != 0) {
178
        if (tags->id == id)
179
            return tags->tag;
180
        tags++;
181
    }
182
    return 0;
183
}
184

    
185
static unsigned int codec_get_asf_tag(const CodecTag *tags, int id)
186
{
187
    while (tags->id != 0) {
188
        if (!tags->invalid_asf && tags->id == id)
189
            return tags->tag;
190
        tags++;
191
    }
192
    return 0;
193
}
194

    
195
enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
196
{
197
    while (tags->id != 0) {
198
        if(   toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
199
           && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
200
           && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
201
           && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
202
            return tags->id;
203
        tags++;
204
    }
205
    return CODEC_ID_NONE;
206
}
207

    
208
unsigned int codec_get_bmp_tag(int id)
209
{
210
    return codec_get_tag(codec_bmp_tags, id);
211
}
212

    
213
unsigned int codec_get_wav_tag(int id)
214
{
215
    return codec_get_tag(codec_wav_tags, id);
216
}
217

    
218
enum CodecID codec_get_bmp_id(unsigned int tag)
219
{
220
    return codec_get_id(codec_bmp_tags, tag);
221
}
222

    
223
enum CodecID codec_get_wav_id(unsigned int tag)
224
{
225
    return codec_get_id(codec_wav_tags, tag);
226
}
227

    
228
#ifdef CONFIG_ENCODERS
229
/* BITMAPINFOHEADER header */
230
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
231
{
232
    put_le32(pb, 40 + enc->extradata_size); /* size */
233
    put_le32(pb, enc->width);
234
    put_le32(pb, enc->height);
235
    put_le16(pb, 1); /* planes */
236
    
237
    put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
238
    /* compression type */
239
    put_le32(pb, for_asf ? codec_get_asf_tag(tags, enc->codec_id) : enc->codec_tag);
240
    put_le32(pb, enc->width * enc->height * 3);
241
    put_le32(pb, 0);
242
    put_le32(pb, 0);
243
    put_le32(pb, 0);
244
    put_le32(pb, 0);
245
    
246
    put_buffer(pb, enc->extradata, enc->extradata_size);
247

    
248
    if (enc->extradata_size & 1)
249
        put_byte(pb, 0);
250
}
251

    
252
static void parse_specific_params(AVCodecContext *stream, int *au_byterate, int *au_ssize, int *au_scale)
253
{
254
    switch(stream->codec_id) {
255
    case CODEC_ID_PCM_S16LE:
256
       *au_scale = *au_ssize = 2*stream->channels;
257
       *au_byterate = *au_ssize * stream->sample_rate;
258
        break;
259
    case CODEC_ID_PCM_U8:
260
    case CODEC_ID_PCM_ALAW:
261
    case CODEC_ID_PCM_MULAW:
262
        *au_scale = *au_ssize = stream->channels;
263
        *au_byterate = *au_ssize * stream->sample_rate;
264
        break;
265
    case CODEC_ID_MP2:
266
        *au_ssize = 1;
267
        *au_scale = 1;
268
        *au_byterate = stream->bit_rate / 8;
269
    case CODEC_ID_MP3:
270
        *au_ssize = 1;
271
        *au_scale = 1;
272
        *au_byterate = stream->bit_rate / 8;    
273
    default:
274
        *au_ssize = 1;
275
        *au_scale = 1; 
276
        *au_byterate = stream->bit_rate / 8;
277
        break;
278
    }
279
}
280

    
281
static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb, 
282
                                   const char* riff_tag, const char* list_tag)
283
{
284
    offset_t loff;
285
    int i;
286
    
287
    avi->riff_id++;
288
    for (i=0; i<MAX_STREAMS; i++)
289
         avi->indexes[i].entry = 0;
290
    
291
    avi->riff_start = start_tag(pb, "RIFF");
292
    put_tag(pb, riff_tag);
293
    loff = start_tag(pb, "LIST");
294
    put_tag(pb, list_tag);
295
    return loff;
296
}
297

    
298
static unsigned char* avi_stream2fourcc(unsigned char* tag, int index, 
299
                                        enum CodecType type)
300
{
301
    tag[0] = '0';
302
    tag[1] = '0' + index;
303
    if (type == CODEC_TYPE_VIDEO) {
304
        tag[2] = 'd';
305
        tag[3] = 'c';
306
    } else {
307
        tag[2] = 'w';
308
        tag[3] = 'b';
309
    }
310
    tag[4] = '\0';
311
    return tag;
312
}
313

    
314
static int avi_write_header(AVFormatContext *s)
315
{
316
    AVIContext *avi = s->priv_data;
317
    ByteIOContext *pb = &s->pb;
318
    int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
319
    AVCodecContext *stream, *video_enc;
320
    offset_t list1, list2, strh, strf;
321

    
322
    /* header list */
323
    avi->riff_id = 0;
324
    list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
325

    
326
    /* avi header */
327
    put_tag(pb, "avih");
328
    put_le32(pb, 14 * 4);
329
    bitrate = 0;
330

    
331
    video_enc = NULL;
332
    for(n=0;n<s->nb_streams;n++) {
333
        stream = &s->streams[n]->codec;
334
        bitrate += stream->bit_rate;
335
        if (stream->codec_type == CODEC_TYPE_VIDEO)
336
            video_enc = stream;
337
    }
338
    
339
    nb_frames = 0;
340

    
341
    if(video_enc){
342
        put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->frame_rate_base / video_enc->frame_rate));
343
    } else {
344
        put_le32(pb, 0);
345
    }
346
    put_le32(pb, bitrate / 8); /* XXX: not quite exact */
347
    put_le32(pb, 0); /* padding */
348
    put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
349
    avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
350
    put_le32(pb, nb_frames); /* nb frames, filled later */
351
    put_le32(pb, 0); /* initial frame */
352
    put_le32(pb, s->nb_streams); /* nb streams */
353
    put_le32(pb, 1024 * 1024); /* suggested buffer size */
354
    if(video_enc){    
355
    put_le32(pb, video_enc->width);
356
    put_le32(pb, video_enc->height);
357
    } else {
358
        put_le32(pb, 0);
359
        put_le32(pb, 0);
360
    }        
361
    put_le32(pb, 0); /* reserved */
362
    put_le32(pb, 0); /* reserved */
363
    put_le32(pb, 0); /* reserved */
364
    put_le32(pb, 0); /* reserved */
365
    
366
    /* stream list */
367
    for(i=0;i<n;i++) {
368
        list2 = start_tag(pb, "LIST");
369
        put_tag(pb, "strl");
370
    
371
        stream = &s->streams[i]->codec;
372

    
373
        /* FourCC should really be set by the codec itself */
374
        if (! stream->codec_tag) {
375
            stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
376
        }
377

    
378
        /* stream generic header */
379
        strh = start_tag(pb, "strh");
380
        switch(stream->codec_type) {
381
        case CODEC_TYPE_VIDEO:
382
            put_tag(pb, "vids");
383
            put_le32(pb, stream->codec_tag);
384
            put_le32(pb, 0); /* flags */
385
            put_le16(pb, 0); /* priority */
386
            put_le16(pb, 0); /* language */
387
            put_le32(pb, 0); /* initial frame */
388
            
389
            put_le32(pb, stream->frame_rate_base); /* scale */
390
            put_le32(pb, stream->frame_rate); /* rate */
391
            av_set_pts_info(s->streams[i], 64, stream->frame_rate_base, stream->frame_rate);
392

    
393
            put_le32(pb, 0); /* start */
394
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
395
            put_le32(pb, nb_frames); /* length, XXX: fill later */
396
            put_le32(pb, 1024 * 1024); /* suggested buffer size */
397
            put_le32(pb, -1); /* quality */
398
            put_le32(pb, stream->width * stream->height * 3); /* sample size */
399
            put_le16(pb, 0);
400
            put_le16(pb, 0);
401
            put_le16(pb, stream->width);
402
            put_le16(pb, stream->height);
403
            break;
404
        case CODEC_TYPE_AUDIO:
405
            put_tag(pb, "auds");
406
            put_le32(pb, 1); /* tag */
407
            put_le32(pb, 0); /* flags */
408
            put_le16(pb, 0); /* priority */
409
            put_le16(pb, 0); /* language */
410
            put_le32(pb, 0); /* initial frame */
411
            parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
412
            put_le32(pb, au_scale); /* scale */
413
            put_le32(pb, au_byterate); /* rate */
414
//            av_set_pts_info(&s->streams[i], 64, au_scale, au_byterate);
415
            put_le32(pb, 0); /* start */
416
            avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
417
            put_le32(pb, 0); /* length, XXX: filled later */
418
            put_le32(pb, 12 * 1024); /* suggested buffer size */
419
            put_le32(pb, -1); /* quality */
420
            put_le32(pb, au_ssize); /* sample size */
421
            put_le32(pb, 0);
422
            put_le32(pb, 0);
423
            break;
424
        default:
425
            av_abort();
426
        }
427
        end_tag(pb, strh);
428

    
429
        strf = start_tag(pb, "strf");
430
        switch(stream->codec_type) {
431
        case CODEC_TYPE_VIDEO:
432
            put_bmp_header(pb, stream, codec_bmp_tags, 0);
433
            break;
434
        case CODEC_TYPE_AUDIO:
435
            if (put_wav_header(pb, stream) < 0) {
436
                av_free(avi);
437
                return -1;
438
            }
439
            break;
440
        default:
441
            av_abort();
442
        }
443
        end_tag(pb, strf);
444
        
445
        if (!url_is_streamed(pb)) {
446
            unsigned char tag[5];
447
            int j;
448
    
449
            /* Starting to lay out AVI OpenDML master index. 
450
             * We want to make it JUNK entry for now, since we'd
451
             * like to get away without making AVI an OpenDML one 
452
             * for compatibility reasons.
453
             */
454
            avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
455
            avi->indexes[i].indx_start = start_tag(pb, "JUNK"); 
456
            put_le16(pb, 4);        /* wLongsPerEntry */
457
            put_byte(pb, 0);        /* bIndexSubType (0 == frame index) */
458
            put_byte(pb, 0);        /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
459
            put_le32(pb, 0);        /* nEntriesInUse (will fill out later on) */
460
            put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
461
                                    /* dwChunkId */
462
            put_le64(pb, 0);        /* dwReserved[3]
463
            put_le32(pb, 0);           Must be 0.    */
464
            for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
465
                 put_le64(pb, 0);
466
            end_tag(pb, avi->indexes[i].indx_start);
467
        }
468
        
469
        end_tag(pb, list2);
470
    }
471
    
472
    if (!url_is_streamed(pb)) {
473
        /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
474
        avi->odml_list = start_tag(pb, "JUNK");
475
        put_tag(pb, "odml");
476
        put_tag(pb, "dmlh");
477
        put_le32(pb, 248);
478
        for (i = 0; i < 248; i+= 4)
479
             put_le32(pb, 0);
480
        end_tag(pb, avi->odml_list);
481
    }
482

    
483
    end_tag(pb, list1);
484
    
485
    avi->movi_list = start_tag(pb, "LIST");
486
    put_tag(pb, "movi");
487

    
488
    put_flush_packet(pb);
489

    
490
    return 0;
491
}
492

    
493
static int avi_write_ix(AVFormatContext *s)
494
{
495
    ByteIOContext *pb = &s->pb;
496
    AVIContext *avi = s->priv_data;
497
    unsigned char tag[5];
498
    unsigned char ix_tag[] = "ix00";
499
    int i, j;
500
    
501
    if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
502
        return -1;
503
    
504
    for (i=0;i<s->nb_streams;i++) {
505
         offset_t ix, pos;
506
         
507
         avi_stream2fourcc(&tag[0], i, s->streams[i]->codec.codec_type);
508
         ix_tag[3] = '0' + i;
509
         
510
         /* Writing AVI OpenDML leaf index chunk */
511
         ix = url_ftell(pb); 
512
         put_tag(pb, &ix_tag[0]);     /* ix?? */
513
         put_le32(pb, avi->indexes[i].entry * 8 + 24); 
514
                                      /* chunk size */
515
         put_le16(pb, 2);             /* wLongsPerEntry */
516
         put_byte(pb, 0);             /* bIndexSubType (0 == frame index) */ 
517
         put_byte(pb, 1);             /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
518
         put_le32(pb, avi->indexes[i].entry);          
519
                                      /* nEntriesInUse */
520
         put_tag(pb, &tag[0]);        /* dwChunkId */
521
         put_le64(pb, avi->movi_list);/* qwBaseOffset */
522
         put_le32(pb, 0);             /* dwReserved_3 (must be 0) */
523

    
524
         for (j=0; j<avi->indexes[i].entry; j++) {
525
             AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
526
             put_le32(pb, ie->pos + 8);
527
             put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
528
                          (ie->flags & 0x10 ? 0 : 0x80000000));
529
         }
530
         put_flush_packet(pb);
531
         pos = url_ftell(pb);
532
        
533
         /* Updating one entry in the AVI OpenDML master index */
534
         url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
535
         put_tag(pb, "indx");                 /* enabling this entry */
536
         url_fskip(pb, 8);
537
         put_le32(pb, avi->riff_id);          /* nEntriesInUse */
538
         url_fskip(pb, 16*avi->riff_id);
539
         put_le64(pb, ix);                    /* qwOffset */
540
         put_le32(pb, pos - ix);              /* dwSize */
541
         put_le32(pb, avi->indexes[i].entry); /* dwDuration */
542

    
543
         url_fseek(pb, pos, SEEK_SET);
544
    }
545
    return 0;
546
}
547

    
548
static int avi_write_idx1(AVFormatContext *s)
549
{
550
    ByteIOContext *pb = &s->pb;
551
    AVIContext *avi = s->priv_data;
552
    offset_t file_size, idx_chunk;
553
    int i, n, nb_frames, au_byterate, au_ssize, au_scale;
554
    AVCodecContext *stream;
555
    unsigned char tag[5];
556

    
557
    if (!url_is_streamed(pb)) {
558
        AVIIentry* ie = 0, *tie;
559
        int entry[MAX_STREAMS];
560
        int empty, stream_id = -1;
561

    
562
        idx_chunk = start_tag(pb, "idx1");
563
        memset(&entry[0], 0, sizeof(entry));
564
        do {
565
            empty = 1;
566
            for (i=0; i<s->nb_streams; i++) {
567
                 if (avi->indexes[i].entry <= entry[i])
568
                     continue;
569
                 
570
                 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
571
                 if (empty || tie->pos < ie->pos) {
572
                     ie = tie; 
573
                     stream_id = i;
574
                 }
575
                 empty = 0;
576
            }
577
            if (!empty) {
578
                avi_stream2fourcc(&tag[0], stream_id, 
579
                                  s->streams[stream_id]->codec.codec_type); 
580
                put_tag(pb, &tag[0]);
581
                put_le32(pb, ie->flags);
582
                put_le32(pb, ie->pos);
583
                put_le32(pb, ie->len);
584
                entry[stream_id]++;
585
            }
586
        } while (!empty);
587
        end_tag(pb, idx_chunk);
588

    
589
        /* Fill in frame/sample counters */
590
        file_size = url_ftell(pb);
591
        nb_frames = 0;
592
        for(n=0;n<s->nb_streams;n++) {
593
            if (avi->frames_hdr_strm[n] != 0) {
594
                stream = &s->streams[n]->codec;
595
                url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
596
                if (stream->codec_type == CODEC_TYPE_VIDEO) {
597
                    put_le32(pb, stream->frame_number); 
598
                    if (nb_frames < stream->frame_number)
599
                        nb_frames = stream->frame_number;
600
                } else {
601
                    if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
602
                        put_le32(pb, stream->frame_number);
603
                        nb_frames += stream->frame_number;
604
                    } else {
605
                        parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
606
                        put_le32(pb, avi->audio_strm_length[n] / au_ssize);
607
                    }
608
                }
609
            }
610
       }
611
       if (avi->frames_hdr_all != 0) {
612
           url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
613
           put_le32(pb, nb_frames); 
614
       }
615
       url_fseek(pb, file_size, SEEK_SET);
616
    }
617
    return 0;
618
}
619

    
620
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
621
{
622
    AVIContext *avi = s->priv_data;
623
    ByteIOContext *pb = &s->pb;
624
    unsigned char tag[5];
625
    unsigned int flags=0;
626
    const int stream_index= pkt->stream_index;
627
    AVCodecContext *enc= &s->streams[stream_index]->codec;
628
    int size= pkt->size;
629

    
630
//    av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
631
    while(enc->codec_type == CODEC_TYPE_VIDEO && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
632
        AVPacket empty_packet;
633

    
634
        av_init_packet(&empty_packet);
635
        empty_packet.size= 0;
636
        empty_packet.data= NULL;
637
        empty_packet.stream_index= stream_index;
638
        avi_write_packet(s, &empty_packet);
639
//        av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
640
    }
641
    avi->packet_count[stream_index]++;
642

    
643
    if (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE) { 
644
        avi_write_ix(s);
645
        end_tag(pb, avi->movi_list);
646
        
647
        if (avi->riff_id == 1)
648
            avi_write_idx1(s);
649

    
650
        end_tag(pb, avi->riff_start);
651
        avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
652
    }
653
    
654
    avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
655
    if(pkt->flags&PKT_FLAG_KEY)
656
        flags = 0x10;
657
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
658
       avi->audio_strm_length[stream_index] += size;
659
    }
660

    
661
    if (!url_is_streamed(&s->pb)) {
662
        AVIIndex* idx = &avi->indexes[stream_index];
663
        int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
664
        int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
665
        if (idx->ents_allocated <= idx->entry) {
666
            idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*)); 
667
            if (!idx->cluster)
668
                return -1;
669
            idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
670
            if (!idx->cluster[cl])
671
                return -1;
672
            idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
673
        }
674
         
675
        idx->cluster[cl][id].flags = flags; 
676
        idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
677
        idx->cluster[cl][id].len = size;
678
        idx->entry++;
679
    }
680
    
681
    put_buffer(pb, tag, 4);
682
    put_le32(pb, size);
683
    put_buffer(pb, pkt->data, size);
684
    if (size & 1)
685
        put_byte(pb, 0);
686

    
687
    put_flush_packet(pb);
688
    return 0;
689
}
690

    
691
static int avi_write_trailer(AVFormatContext *s)
692
{
693
    AVIContext *avi = s->priv_data;
694
    ByteIOContext *pb = &s->pb;
695
    int res = 0;
696
    int i, j, n, nb_frames;
697
    offset_t file_size;
698

    
699
    if (avi->riff_id == 1) {
700
        end_tag(pb, avi->movi_list);
701
        res = avi_write_idx1(s);
702
        end_tag(pb, avi->riff_start);
703
    } else {
704
        avi_write_ix(s);
705
        end_tag(pb, avi->movi_list);
706
        end_tag(pb, avi->riff_start);
707

    
708
        file_size = url_ftell(pb);
709
        url_fseek(pb, avi->odml_list - 8, SEEK_SET);
710
        put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
711
        url_fskip(pb, 16);
712

    
713
        for (n=nb_frames=0;n<s->nb_streams;n++) {
714
             AVCodecContext *stream = &s->streams[n]->codec;
715
             if (stream->codec_type == CODEC_TYPE_VIDEO) {
716
                 if (nb_frames < stream->frame_number)
717
                     nb_frames = stream->frame_number;
718
             } else {
719
                 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
720
                     nb_frames += stream->frame_number;
721
                }
722
            }
723
        }
724
        put_le32(pb, nb_frames);
725
        url_fseek(pb, file_size, SEEK_SET);
726
    }
727
    put_flush_packet(pb);
728

    
729
    for (i=0; i<MAX_STREAMS; i++) {
730
         for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
731
              av_free(avi->indexes[i].cluster[j]);
732
         av_free(avi->indexes[i].cluster);
733
         avi->indexes[i].cluster = NULL;
734
         avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
735
    }
736
    
737
    return res;
738
}
739

    
740
static AVOutputFormat avi_oformat = {
741
    "avi",
742
    "avi format",
743
    "video/x-msvideo",
744
    "avi",
745
    sizeof(AVIContext),
746
    CODEC_ID_MP2,
747
    CODEC_ID_MPEG4,
748
    avi_write_header,
749
    avi_write_packet,
750
    avi_write_trailer,
751
};
752

    
753
int avienc_init(void)
754
{
755
    av_register_output_format(&avi_oformat);
756
    return 0;
757
}
758
#endif //CONFIG_ENCODERS