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ffmpeg / libavformat / avienc.c @ 82e415b1

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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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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 */
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#ifdef CONFIG_MUXERS
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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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}
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offset_t start_tag(ByteIOContext *pb, const char *tag)
59
{
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    put_tag(pb, tag);
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    put_le32(pb, 0);
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    return url_ftell(pb);
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}
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void end_tag(ByteIOContext *pb, offset_t start)
66
{
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    offset_t pos;
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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_MUXERS
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. */
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const CodecTag codec_bmp_tags[] = {
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    { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
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    { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
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    { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
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    { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
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    { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
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    { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
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86
    { 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 */
89
    { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
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91
    /* 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') },
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95
    { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4')},
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    { 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') },
101
    { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
102

    
103
    /* 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') },
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    { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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    { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
108
    { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
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110
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
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    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
112

    
113
    /* added based on MPlayer */
114
    { 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') },
118
    { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
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    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
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    { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
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122
    { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
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124
    /* added based on MPlayer */
125
    { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
126

    
127
    { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
128

    
129
    { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
130

    
131
    /* added based on MPlayer */
132
    { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
133
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
134
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
135
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
136
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
137
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
138
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
139
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
140
    { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
141
    { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
142
    { CODEC_ID_MPEG1VIDEO, 0x10000001 },
143
    { CODEC_ID_MPEG2VIDEO, 0x10000002 },
144
    { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
145
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
146
    { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
147
    { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
148
    { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
149
    { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
150
    { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
151
    { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
152
    { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
153
    { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
154
    { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
155
    { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
156
    { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
157
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
158
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
159
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
160
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
161
    { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
162
    { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
163
    { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
164
    { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
165
    { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
166
    { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
167
    { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
168
    { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
169
    { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
170
    { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
171
    { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
172
    { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
173
    { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
174
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
175
    { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
176
    { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
177
    { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
178
    { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
179
    { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
180
    { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
181
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
182
    { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
183
    { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
184
    { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
185
    { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
186
    { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
187
    { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
188
    { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
189
    { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
190
    { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
191
    { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
192
    { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
193
    { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
194
    { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
195
    { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
196
    { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
197
    { CODEC_ID_RAWVIDEO, 0 },
198
    { 0, 0 },
199
};
200

    
201
unsigned int codec_get_tag(const CodecTag *tags, int id)
202
{
203
    while (tags->id != 0) {
204
        if (tags->id == id)
205
            return tags->tag;
206
        tags++;
207
    }
208
    return 0;
209
}
210

    
211
static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
212
{
213
    while (tags->id != 0) {
214
        if (!tags->invalid_asf && tags->id == id)
215
            return tags->tag;
216
        tags++;
217
    }
218
    return 0;
219
}
220

    
221
enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
222
{
223
    while (tags->id != 0) {
224
        if(   toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
225
           && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
226
           && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
227
           && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
228
            return tags->id;
229
        tags++;
230
    }
231
    return CODEC_ID_NONE;
232
}
233

    
234
unsigned int codec_get_bmp_tag(int id)
235
{
236
    return codec_get_tag(codec_bmp_tags, id);
237
}
238

    
239
unsigned int codec_get_wav_tag(int id)
240
{
241
    return codec_get_tag(codec_wav_tags, id);
242
}
243

    
244
enum CodecID codec_get_bmp_id(unsigned int tag)
245
{
246
    return codec_get_id(codec_bmp_tags, tag);
247
}
248

    
249
enum CodecID codec_get_wav_id(unsigned int tag)
250
{
251
    return codec_get_id(codec_wav_tags, tag);
252
}
253

    
254
#ifdef CONFIG_MUXERS
255
/* BITMAPINFOHEADER header */
256
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
257
{
258
    put_le32(pb, 40 + enc->extradata_size); /* size */
259
    put_le32(pb, enc->width);
260
    put_le32(pb, enc->height);
261
    put_le16(pb, 1); /* planes */
262

    
263
    put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
264
    /* compression type */
265
    put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
266
    put_le32(pb, enc->width * enc->height * 3);
267
    put_le32(pb, 0);
268
    put_le32(pb, 0);
269
    put_le32(pb, 0);
270
    put_le32(pb, 0);
271

    
272
    put_buffer(pb, enc->extradata, enc->extradata_size);
273

    
274
    if (enc->extradata_size & 1)
275
        put_byte(pb, 0);
276
}
277

    
278
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
279
{
280
    int gcd;
281

    
282
    *au_ssize= stream->block_align;
283
    if(stream->frame_size && stream->sample_rate){
284
        *au_scale=stream->frame_size;
285
        *au_rate= stream->sample_rate;
286
    }else if(stream->codec_type == CODEC_TYPE_VIDEO){
287
        *au_scale= stream->time_base.num;
288
        *au_rate = stream->time_base.den;
289
    }else{
290
        *au_scale= stream->block_align ? stream->block_align*8 : 8;
291
        *au_rate = stream->bit_rate;
292
    }
293
    gcd= ff_gcd(*au_scale, *au_rate);
294
    *au_scale /= gcd;
295
    *au_rate /= gcd;
296
}
297

    
298
static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
299
                                   const char* riff_tag, const char* list_tag)
300
{
301
    offset_t loff;
302
    int i;
303

    
304
    avi->riff_id++;
305
    for (i=0; i<MAX_STREAMS; i++)
306
         avi->indexes[i].entry = 0;
307

    
308
    avi->riff_start = start_tag(pb, "RIFF");
309
    put_tag(pb, riff_tag);
310
    loff = start_tag(pb, "LIST");
311
    put_tag(pb, list_tag);
312
    return loff;
313
}
314

    
315
static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
316
                                        enum CodecType type)
317
{
318
    tag[0] = '0';
319
    tag[1] = '0' + index;
320
    if (type == CODEC_TYPE_VIDEO) {
321
        tag[2] = 'd';
322
        tag[3] = 'c';
323
    } else {
324
        tag[2] = 'w';
325
        tag[3] = 'b';
326
    }
327
    tag[4] = '\0';
328
    return tag;
329
}
330

    
331
static int avi_write_header(AVFormatContext *s)
332
{
333
    AVIContext *avi = s->priv_data;
334
    ByteIOContext *pb = &s->pb;
335
    int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
336
    AVCodecContext *stream, *video_enc;
337
    offset_t list1, list2, strh, strf;
338

    
339
    /* header list */
340
    avi->riff_id = 0;
341
    list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
342

    
343
    /* avi header */
344
    put_tag(pb, "avih");
345
    put_le32(pb, 14 * 4);
346
    bitrate = 0;
347

    
348
    video_enc = NULL;
349
    for(n=0;n<s->nb_streams;n++) {
350
        stream = s->streams[n]->codec;
351
        bitrate += stream->bit_rate;
352
        if (stream->codec_type == CODEC_TYPE_VIDEO)
353
            video_enc = stream;
354
    }
355

    
356
    nb_frames = 0;
357

    
358
    if(video_enc){
359
        put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
360
    } else {
361
        put_le32(pb, 0);
362
    }
363
    put_le32(pb, bitrate / 8); /* XXX: not quite exact */
364
    put_le32(pb, 0); /* padding */
365
    if (url_is_streamed(pb))
366
        put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
367
    else
368
        put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
369
    avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
370
    put_le32(pb, nb_frames); /* nb frames, filled later */
371
    put_le32(pb, 0); /* initial frame */
372
    put_le32(pb, s->nb_streams); /* nb streams */
373
    put_le32(pb, 1024 * 1024); /* suggested buffer size */
374
    if(video_enc){
375
    put_le32(pb, video_enc->width);
376
    put_le32(pb, video_enc->height);
377
    } else {
378
        put_le32(pb, 0);
379
        put_le32(pb, 0);
380
    }
381
    put_le32(pb, 0); /* reserved */
382
    put_le32(pb, 0); /* reserved */
383
    put_le32(pb, 0); /* reserved */
384
    put_le32(pb, 0); /* reserved */
385

    
386
    /* stream list */
387
    for(i=0;i<n;i++) {
388
        list2 = start_tag(pb, "LIST");
389
        put_tag(pb, "strl");
390

    
391
        stream = s->streams[i]->codec;
392

    
393
        /* FourCC should really be set by the codec itself */
394
        if (! stream->codec_tag) {
395
            stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
396
        }
397

    
398
        /* stream generic header */
399
        strh = start_tag(pb, "strh");
400
        switch(stream->codec_type) {
401
        case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
402
        case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
403
//        case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
404
        case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
405
        }
406
        if(stream->codec_type == CODEC_TYPE_VIDEO)
407
            put_le32(pb, stream->codec_tag);
408
        else
409
            put_le32(pb, 1);
410
        put_le32(pb, 0); /* flags */
411
        put_le16(pb, 0); /* priority */
412
        put_le16(pb, 0); /* language */
413
        put_le32(pb, 0); /* initial frame */
414

    
415
        ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
416

    
417
        put_le32(pb, au_scale); /* scale */
418
        put_le32(pb, au_byterate); /* rate */
419
        av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
420

    
421
        put_le32(pb, 0); /* start */
422
        avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
423
        if (url_is_streamed(pb))
424
            put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
425
        else
426
            put_le32(pb, 0); /* length, XXX: filled later */
427

    
428
        /* suggested buffer size */ //FIXME set at the end to largest chunk
429
        if(stream->codec_type == CODEC_TYPE_VIDEO)
430
            put_le32(pb, 1024 * 1024);
431
        else if(stream->codec_type == CODEC_TYPE_AUDIO)
432
            put_le32(pb, 12 * 1024);
433
        else
434
            put_le32(pb, 0);
435
        put_le32(pb, -1); /* quality */
436
        put_le32(pb, au_ssize); /* sample size */
437
        put_le32(pb, 0);
438
        put_le16(pb, stream->width);
439
        put_le16(pb, stream->height);
440
        end_tag(pb, strh);
441

    
442
      if(stream->codec_type != CODEC_TYPE_DATA){
443
        strf = start_tag(pb, "strf");
444
        switch(stream->codec_type) {
445
        case CODEC_TYPE_VIDEO:
446
            put_bmp_header(pb, stream, codec_bmp_tags, 0);
447
            break;
448
        case CODEC_TYPE_AUDIO:
449
            if (put_wav_header(pb, stream) < 0) {
450
                av_free(avi);
451
                return -1;
452
            }
453
            break;
454
        default:
455
            return -1;
456
        }
457
        end_tag(pb, strf);
458
      }
459

    
460
        if (!url_is_streamed(pb)) {
461
            unsigned char tag[5];
462
            int j;
463

    
464
            /* Starting to lay out AVI OpenDML master index.
465
             * We want to make it JUNK entry for now, since we'd
466
             * like to get away without making AVI an OpenDML one
467
             * for compatibility reasons.
468
             */
469
            avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
470
            avi->indexes[i].indx_start = start_tag(pb, "JUNK");
471
            put_le16(pb, 4);        /* wLongsPerEntry */
472
            put_byte(pb, 0);        /* bIndexSubType (0 == frame index) */
473
            put_byte(pb, 0);        /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
474
            put_le32(pb, 0);        /* nEntriesInUse (will fill out later on) */
475
            put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
476
                                    /* dwChunkId */
477
            put_le64(pb, 0);        /* dwReserved[3]
478
            put_le32(pb, 0);           Must be 0.    */
479
            for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
480
                 put_le64(pb, 0);
481
            end_tag(pb, avi->indexes[i].indx_start);
482
        }
483

    
484
        end_tag(pb, list2);
485
    }
486

    
487
    if (!url_is_streamed(pb)) {
488
        /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
489
        avi->odml_list = start_tag(pb, "JUNK");
490
        put_tag(pb, "odml");
491
        put_tag(pb, "dmlh");
492
        put_le32(pb, 248);
493
        for (i = 0; i < 248; i+= 4)
494
             put_le32(pb, 0);
495
        end_tag(pb, avi->odml_list);
496
    }
497

    
498
    end_tag(pb, list1);
499

    
500
    avi->movi_list = start_tag(pb, "LIST");
501
    put_tag(pb, "movi");
502

    
503
    put_flush_packet(pb);
504

    
505
    return 0;
506
}
507

    
508
static int avi_write_ix(AVFormatContext *s)
509
{
510
    ByteIOContext *pb = &s->pb;
511
    AVIContext *avi = s->priv_data;
512
    unsigned char tag[5];
513
    unsigned char ix_tag[] = "ix00";
514
    int i, j;
515

    
516
    if (url_is_streamed(pb))
517
        return -1;
518

    
519
    if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
520
        return -1;
521

    
522
    for (i=0;i<s->nb_streams;i++) {
523
         offset_t ix, pos;
524

    
525
         avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
526
         ix_tag[3] = '0' + i;
527

    
528
         /* Writing AVI OpenDML leaf index chunk */
529
         ix = url_ftell(pb);
530
         put_tag(pb, &ix_tag[0]);     /* ix?? */
531
         put_le32(pb, avi->indexes[i].entry * 8 + 24);
532
                                      /* chunk size */
533
         put_le16(pb, 2);             /* wLongsPerEntry */
534
         put_byte(pb, 0);             /* bIndexSubType (0 == frame index) */
535
         put_byte(pb, 1);             /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
536
         put_le32(pb, avi->indexes[i].entry);
537
                                      /* nEntriesInUse */
538
         put_tag(pb, &tag[0]);        /* dwChunkId */
539
         put_le64(pb, avi->movi_list);/* qwBaseOffset */
540
         put_le32(pb, 0);             /* dwReserved_3 (must be 0) */
541

    
542
         for (j=0; j<avi->indexes[i].entry; j++) {
543
             AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
544
             put_le32(pb, ie->pos + 8);
545
             put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
546
                          (ie->flags & 0x10 ? 0 : 0x80000000));
547
         }
548
         put_flush_packet(pb);
549
         pos = url_ftell(pb);
550

    
551
         /* Updating one entry in the AVI OpenDML master index */
552
         url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
553
         put_tag(pb, "indx");                 /* enabling this entry */
554
         url_fskip(pb, 8);
555
         put_le32(pb, avi->riff_id);          /* nEntriesInUse */
556
         url_fskip(pb, 16*avi->riff_id);
557
         put_le64(pb, ix);                    /* qwOffset */
558
         put_le32(pb, pos - ix);              /* dwSize */
559
         put_le32(pb, avi->indexes[i].entry); /* dwDuration */
560

    
561
         url_fseek(pb, pos, SEEK_SET);
562
    }
563
    return 0;
564
}
565

    
566
static int avi_write_idx1(AVFormatContext *s)
567
{
568
    ByteIOContext *pb = &s->pb;
569
    AVIContext *avi = s->priv_data;
570
    offset_t file_size, idx_chunk;
571
    int i, n, nb_frames, au_byterate, au_ssize, au_scale;
572
    AVCodecContext *stream;
573
    unsigned char tag[5];
574

    
575
    if (!url_is_streamed(pb)) {
576
        AVIIentry* ie = 0, *tie;
577
        int entry[MAX_STREAMS];
578
        int empty, stream_id = -1;
579

    
580
        idx_chunk = start_tag(pb, "idx1");
581
        memset(&entry[0], 0, sizeof(entry));
582
        do {
583
            empty = 1;
584
            for (i=0; i<s->nb_streams; i++) {
585
                 if (avi->indexes[i].entry <= entry[i])
586
                     continue;
587

    
588
                 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
589
                 if (empty || tie->pos < ie->pos) {
590
                     ie = tie;
591
                     stream_id = i;
592
                 }
593
                 empty = 0;
594
            }
595
            if (!empty) {
596
                avi_stream2fourcc(&tag[0], stream_id,
597
                                  s->streams[stream_id]->codec->codec_type);
598
                put_tag(pb, &tag[0]);
599
                put_le32(pb, ie->flags);
600
                put_le32(pb, ie->pos);
601
                put_le32(pb, ie->len);
602
                entry[stream_id]++;
603
            }
604
        } while (!empty);
605
        end_tag(pb, idx_chunk);
606

    
607
        /* Fill in frame/sample counters */
608
        file_size = url_ftell(pb);
609
        nb_frames = 0;
610
        for(n=0;n<s->nb_streams;n++) {
611
            if (avi->frames_hdr_strm[n] != 0) {
612
                stream = s->streams[n]->codec;
613
                url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
614
                ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
615
                if (au_ssize == 0) {
616
                    put_le32(pb, avi->packet_count[n]);
617
                    nb_frames += avi->packet_count[n];
618
                } else {
619
                    put_le32(pb, avi->audio_strm_length[n] / au_ssize);
620
                }
621
            }
622
       }
623
       if (avi->frames_hdr_all != 0) {
624
           url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
625
           put_le32(pb, nb_frames);
626
       }
627
       url_fseek(pb, file_size, SEEK_SET);
628
    }
629
    return 0;
630
}
631

    
632
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
633
{
634
    AVIContext *avi = s->priv_data;
635
    ByteIOContext *pb = &s->pb;
636
    unsigned char tag[5];
637
    unsigned int flags=0;
638
    const int stream_index= pkt->stream_index;
639
    AVCodecContext *enc= s->streams[stream_index]->codec;
640
    int size= pkt->size;
641

    
642
//    av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
643
    while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
644
        AVPacket empty_packet;
645

    
646
        av_init_packet(&empty_packet);
647
        empty_packet.size= 0;
648
        empty_packet.data= NULL;
649
        empty_packet.stream_index= stream_index;
650
        avi_write_packet(s, &empty_packet);
651
//        av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
652
    }
653
    avi->packet_count[stream_index]++;
654

    
655
    // Make sure to put an OpenDML chunk when the file size exceeds the limits
656
    if (!url_is_streamed(pb) &&
657
        (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
658

    
659
        avi_write_ix(s);
660
        end_tag(pb, avi->movi_list);
661

    
662
        if (avi->riff_id == 1)
663
            avi_write_idx1(s);
664

    
665
        end_tag(pb, avi->riff_start);
666
        avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
667
    }
668

    
669
    avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
670
    if(pkt->flags&PKT_FLAG_KEY)
671
        flags = 0x10;
672
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
673
       avi->audio_strm_length[stream_index] += size;
674
    }
675

    
676
    if (!url_is_streamed(&s->pb)) {
677
        AVIIndex* idx = &avi->indexes[stream_index];
678
        int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
679
        int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
680
        if (idx->ents_allocated <= idx->entry) {
681
            idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
682
            if (!idx->cluster)
683
                return -1;
684
            idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
685
            if (!idx->cluster[cl])
686
                return -1;
687
            idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
688
        }
689

    
690
        idx->cluster[cl][id].flags = flags;
691
        idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
692
        idx->cluster[cl][id].len = size;
693
        idx->entry++;
694
    }
695

    
696
    put_buffer(pb, tag, 4);
697
    put_le32(pb, size);
698
    put_buffer(pb, pkt->data, size);
699
    if (size & 1)
700
        put_byte(pb, 0);
701

    
702
    put_flush_packet(pb);
703
    return 0;
704
}
705

    
706
static int avi_write_trailer(AVFormatContext *s)
707
{
708
    AVIContext *avi = s->priv_data;
709
    ByteIOContext *pb = &s->pb;
710
    int res = 0;
711
    int i, j, n, nb_frames;
712
    offset_t file_size;
713

    
714
    if (!url_is_streamed(pb))
715
    {
716
    if (avi->riff_id == 1) {
717
        end_tag(pb, avi->movi_list);
718
        res = avi_write_idx1(s);
719
        end_tag(pb, avi->riff_start);
720
    } else {
721
        avi_write_ix(s);
722
        end_tag(pb, avi->movi_list);
723
        end_tag(pb, avi->riff_start);
724

    
725
        file_size = url_ftell(pb);
726
        url_fseek(pb, avi->odml_list - 8, SEEK_SET);
727
        put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
728
        url_fskip(pb, 16);
729

    
730
        for (n=nb_frames=0;n<s->nb_streams;n++) {
731
             AVCodecContext *stream = s->streams[n]->codec;
732
             if (stream->codec_type == CODEC_TYPE_VIDEO) {
733
                 if (nb_frames < avi->packet_count[n])
734
                     nb_frames = avi->packet_count[n];
735
             } else {
736
                 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
737
                     nb_frames += avi->packet_count[n];
738
                }
739
            }
740
        }
741
        put_le32(pb, nb_frames);
742
        url_fseek(pb, file_size, SEEK_SET);
743
    }
744
    }
745
    put_flush_packet(pb);
746

    
747
    for (i=0; i<MAX_STREAMS; i++) {
748
         for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
749
              av_free(avi->indexes[i].cluster[j]);
750
         av_free(avi->indexes[i].cluster);
751
         avi->indexes[i].cluster = NULL;
752
         avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
753
    }
754

    
755
    return res;
756
}
757

    
758
static AVOutputFormat avi_oformat = {
759
    "avi",
760
    "avi format",
761
    "video/x-msvideo",
762
    "avi",
763
    sizeof(AVIContext),
764
    CODEC_ID_MP2,
765
    CODEC_ID_MPEG4,
766
    avi_write_header,
767
    avi_write_packet,
768
    avi_write_trailer,
769
};
770

    
771
int avienc_init(void)
772
{
773
    av_register_output_format(&avi_oformat);
774
    return 0;
775
}
776
#endif //CONFIG_MUXERS