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ffmpeg / libavformat / avienc.c @ 98740f5a

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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

    
22
/*
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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_MUXERS
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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;
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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
{
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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}
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65
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

    
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') },
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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') },
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    { CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
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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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    { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
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    { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
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113
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
114
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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116
    /* added based on MPlayer */
117
    { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
118
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
119
    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
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    { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
121
    { 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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125
    { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
126

    
127
    /* added based on MPlayer */
128
    { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
129

    
130
    { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
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132
    { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
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134
    /* added based on MPlayer */
135
    { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
136
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
137
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
138
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
139
    { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
140
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
141
    { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
142
    { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
143
    { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
144
    { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
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    { CODEC_ID_MPEG1VIDEO, 0x10000001 },
146
    { CODEC_ID_MPEG2VIDEO, 0x10000002 },
147
    { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
148
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
149
    { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
150
    { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
151
    { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
152
    { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
153
    { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
154
    { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
155
    { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
156
    { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
157
    { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
158
    { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
159
    { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
160
    { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
161
    { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
162
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
163
    { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
164
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
165
    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
166
    { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
167
    { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
168
    { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
169
    { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
170
    { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
171
    { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
172
    { CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
173
    { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
174
    { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
175
    { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
176
    { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
177
    { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
178
    { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
179
    { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
180
    { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
181
    { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
182
    { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
183
    { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
184
    { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
185
    { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
186
    { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
187
    { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
188
    { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
189
    { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
190
    { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
191
    { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
192
    { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
193
    { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
194
    { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
195
    { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
196
    { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
197
    { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
198
    { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
199
    { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
200
    { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
201
    { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
202
    { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
203
    { CODEC_ID_RAWVIDEO, 0 },
204
    { CODEC_ID_NONE, 0 },
205
};
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207
unsigned int codec_get_tag(const CodecTag *tags, int id)
208
{
209
    while (tags->id != CODEC_ID_NONE) {
210
        if (tags->id == id)
211
            return tags->tag;
212
        tags++;
213
    }
214
    return 0;
215
}
216

    
217
static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
218
{
219
    while (tags->id != CODEC_ID_NONE) {
220
        if (!tags->invalid_asf && tags->id == id)
221
            return tags->tag;
222
        tags++;
223
    }
224
    return 0;
225
}
226

    
227
enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
228
{
229
    while (tags->id != CODEC_ID_NONE) {
230
        if(   toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
231
           && toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
232
           && toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
233
           && toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
234
            return tags->id;
235
        tags++;
236
    }
237
    return CODEC_ID_NONE;
238
}
239

    
240
unsigned int codec_get_bmp_tag(int id)
241
{
242
    return codec_get_tag(codec_bmp_tags, id);
243
}
244

    
245
unsigned int codec_get_wav_tag(int id)
246
{
247
    return codec_get_tag(codec_wav_tags, id);
248
}
249

    
250
enum CodecID codec_get_bmp_id(unsigned int tag)
251
{
252
    return codec_get_id(codec_bmp_tags, tag);
253
}
254

    
255
enum CodecID codec_get_wav_id(unsigned int tag)
256
{
257
    return codec_get_id(codec_wav_tags, tag);
258
}
259

    
260
#ifdef CONFIG_MUXERS
261
/* BITMAPINFOHEADER header */
262
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
263
{
264
    put_le32(pb, 40 + enc->extradata_size); /* size */
265
    put_le32(pb, enc->width);
266
    put_le32(pb, enc->height);
267
    put_le16(pb, 1); /* planes */
268

    
269
    put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
270
    /* compression type */
271
    put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
272
    put_le32(pb, enc->width * enc->height * 3);
273
    put_le32(pb, 0);
274
    put_le32(pb, 0);
275
    put_le32(pb, 0);
276
    put_le32(pb, 0);
277

    
278
    put_buffer(pb, enc->extradata, enc->extradata_size);
279

    
280
    if (enc->extradata_size & 1)
281
        put_byte(pb, 0);
282
}
283

    
284
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
285
{
286
    int gcd;
287

    
288
    *au_ssize= stream->block_align;
289
    if(stream->frame_size && stream->sample_rate){
290
        *au_scale=stream->frame_size;
291
        *au_rate= stream->sample_rate;
292
    }else if(stream->codec_type == CODEC_TYPE_VIDEO){
293
        *au_scale= stream->time_base.num;
294
        *au_rate = stream->time_base.den;
295
    }else{
296
        *au_scale= stream->block_align ? stream->block_align*8 : 8;
297
        *au_rate = stream->bit_rate;
298
    }
299
    gcd= ff_gcd(*au_scale, *au_rate);
300
    *au_scale /= gcd;
301
    *au_rate /= gcd;
302
}
303

    
304
static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
305
                                   const char* riff_tag, const char* list_tag)
306
{
307
    offset_t loff;
308
    int i;
309

    
310
    avi->riff_id++;
311
    for (i=0; i<MAX_STREAMS; i++)
312
         avi->indexes[i].entry = 0;
313

    
314
    avi->riff_start = start_tag(pb, "RIFF");
315
    put_tag(pb, riff_tag);
316
    loff = start_tag(pb, "LIST");
317
    put_tag(pb, list_tag);
318
    return loff;
319
}
320

    
321
static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
322
                                        enum CodecType type)
323
{
324
    tag[0] = '0';
325
    tag[1] = '0' + index;
326
    if (type == CODEC_TYPE_VIDEO) {
327
        tag[2] = 'd';
328
        tag[3] = 'c';
329
    } else {
330
        tag[2] = 'w';
331
        tag[3] = 'b';
332
    }
333
    tag[4] = '\0';
334
    return tag;
335
}
336

    
337
static int avi_write_header(AVFormatContext *s)
338
{
339
    AVIContext *avi = s->priv_data;
340
    ByteIOContext *pb = &s->pb;
341
    int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
342
    AVCodecContext *stream, *video_enc;
343
    offset_t list1, list2, strh, strf;
344

    
345
    /* header list */
346
    avi->riff_id = 0;
347
    list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
348

    
349
    /* avi header */
350
    put_tag(pb, "avih");
351
    put_le32(pb, 14 * 4);
352
    bitrate = 0;
353

    
354
    video_enc = NULL;
355
    for(n=0;n<s->nb_streams;n++) {
356
        stream = s->streams[n]->codec;
357
        bitrate += stream->bit_rate;
358
        if (stream->codec_type == CODEC_TYPE_VIDEO)
359
            video_enc = stream;
360
    }
361

    
362
    nb_frames = 0;
363

    
364
    if(video_enc){
365
        put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
366
    } else {
367
        put_le32(pb, 0);
368
    }
369
    put_le32(pb, bitrate / 8); /* XXX: not quite exact */
370
    put_le32(pb, 0); /* padding */
371
    if (url_is_streamed(pb))
372
        put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
373
    else
374
        put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
375
    avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
376
    put_le32(pb, nb_frames); /* nb frames, filled later */
377
    put_le32(pb, 0); /* initial frame */
378
    put_le32(pb, s->nb_streams); /* nb streams */
379
    put_le32(pb, 1024 * 1024); /* suggested buffer size */
380
    if(video_enc){
381
        put_le32(pb, video_enc->width);
382
        put_le32(pb, video_enc->height);
383
    } else {
384
        put_le32(pb, 0);
385
        put_le32(pb, 0);
386
    }
387
    put_le32(pb, 0); /* reserved */
388
    put_le32(pb, 0); /* reserved */
389
    put_le32(pb, 0); /* reserved */
390
    put_le32(pb, 0); /* reserved */
391

    
392
    /* stream list */
393
    for(i=0;i<n;i++) {
394
        list2 = start_tag(pb, "LIST");
395
        put_tag(pb, "strl");
396

    
397
        stream = s->streams[i]->codec;
398

    
399
        /* FourCC should really be set by the codec itself */
400
        if (! stream->codec_tag) {
401
            stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
402
        }
403

    
404
        /* stream generic header */
405
        strh = start_tag(pb, "strh");
406
        switch(stream->codec_type) {
407
        case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
408
        case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
409
//        case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
410
        case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
411
        }
412
        if(stream->codec_type == CODEC_TYPE_VIDEO)
413
            put_le32(pb, stream->codec_tag);
414
        else
415
            put_le32(pb, 1);
416
        put_le32(pb, 0); /* flags */
417
        put_le16(pb, 0); /* priority */
418
        put_le16(pb, 0); /* language */
419
        put_le32(pb, 0); /* initial frame */
420

    
421
        ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
422

    
423
        put_le32(pb, au_scale); /* scale */
424
        put_le32(pb, au_byterate); /* rate */
425
        av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
426

    
427
        put_le32(pb, 0); /* start */
428
        avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
429
        if (url_is_streamed(pb))
430
            put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
431
        else
432
            put_le32(pb, 0); /* length, XXX: filled later */
433

    
434
        /* suggested buffer size */ //FIXME set at the end to largest chunk
435
        if(stream->codec_type == CODEC_TYPE_VIDEO)
436
            put_le32(pb, 1024 * 1024);
437
        else if(stream->codec_type == CODEC_TYPE_AUDIO)
438
            put_le32(pb, 12 * 1024);
439
        else
440
            put_le32(pb, 0);
441
        put_le32(pb, -1); /* quality */
442
        put_le32(pb, au_ssize); /* sample size */
443
        put_le32(pb, 0);
444
        put_le16(pb, stream->width);
445
        put_le16(pb, stream->height);
446
        end_tag(pb, strh);
447

    
448
      if(stream->codec_type != CODEC_TYPE_DATA){
449
        strf = start_tag(pb, "strf");
450
        switch(stream->codec_type) {
451
        case CODEC_TYPE_VIDEO:
452
            put_bmp_header(pb, stream, codec_bmp_tags, 0);
453
            break;
454
        case CODEC_TYPE_AUDIO:
455
            if (put_wav_header(pb, stream) < 0) {
456
                av_free(avi);
457
                return -1;
458
            }
459
            break;
460
        default:
461
            return -1;
462
        }
463
        end_tag(pb, strf);
464
      }
465

    
466
        if (!url_is_streamed(pb)) {
467
            unsigned char tag[5];
468
            int j;
469

    
470
            /* Starting to lay out AVI OpenDML master index.
471
             * We want to make it JUNK entry for now, since we'd
472
             * like to get away without making AVI an OpenDML one
473
             * for compatibility reasons.
474
             */
475
            avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
476
            avi->indexes[i].indx_start = start_tag(pb, "JUNK");
477
            put_le16(pb, 4);        /* wLongsPerEntry */
478
            put_byte(pb, 0);        /* bIndexSubType (0 == frame index) */
479
            put_byte(pb, 0);        /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
480
            put_le32(pb, 0);        /* nEntriesInUse (will fill out later on) */
481
            put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
482
                                    /* dwChunkId */
483
            put_le64(pb, 0);        /* dwReserved[3]
484
            put_le32(pb, 0);           Must be 0.    */
485
            for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
486
                 put_le64(pb, 0);
487
            end_tag(pb, avi->indexes[i].indx_start);
488
        }
489

    
490
        end_tag(pb, list2);
491
    }
492

    
493
    if (!url_is_streamed(pb)) {
494
        /* AVI could become an OpenDML one, if it grows beyond 2Gb range */
495
        avi->odml_list = start_tag(pb, "JUNK");
496
        put_tag(pb, "odml");
497
        put_tag(pb, "dmlh");
498
        put_le32(pb, 248);
499
        for (i = 0; i < 248; i+= 4)
500
             put_le32(pb, 0);
501
        end_tag(pb, avi->odml_list);
502
    }
503

    
504
    end_tag(pb, list1);
505

    
506
    avi->movi_list = start_tag(pb, "LIST");
507
    put_tag(pb, "movi");
508

    
509
    put_flush_packet(pb);
510

    
511
    return 0;
512
}
513

    
514
static int avi_write_ix(AVFormatContext *s)
515
{
516
    ByteIOContext *pb = &s->pb;
517
    AVIContext *avi = s->priv_data;
518
    unsigned char tag[5];
519
    unsigned char ix_tag[] = "ix00";
520
    int i, j;
521

    
522
    assert(!url_is_streamed(pb));
523

    
524
    if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
525
        return -1;
526

    
527
    for (i=0;i<s->nb_streams;i++) {
528
         offset_t ix, pos;
529

    
530
         avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
531
         ix_tag[3] = '0' + i;
532

    
533
         /* Writing AVI OpenDML leaf index chunk */
534
         ix = url_ftell(pb);
535
         put_tag(pb, &ix_tag[0]);     /* ix?? */
536
         put_le32(pb, avi->indexes[i].entry * 8 + 24);
537
                                      /* chunk size */
538
         put_le16(pb, 2);             /* wLongsPerEntry */
539
         put_byte(pb, 0);             /* bIndexSubType (0 == frame index) */
540
         put_byte(pb, 1);             /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
541
         put_le32(pb, avi->indexes[i].entry);
542
                                      /* nEntriesInUse */
543
         put_tag(pb, &tag[0]);        /* dwChunkId */
544
         put_le64(pb, avi->movi_list);/* qwBaseOffset */
545
         put_le32(pb, 0);             /* dwReserved_3 (must be 0) */
546

    
547
         for (j=0; j<avi->indexes[i].entry; j++) {
548
             AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
549
             put_le32(pb, ie->pos + 8);
550
             put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
551
                          (ie->flags & 0x10 ? 0 : 0x80000000));
552
         }
553
         put_flush_packet(pb);
554
         pos = url_ftell(pb);
555

    
556
         /* Updating one entry in the AVI OpenDML master index */
557
         url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
558
         put_tag(pb, "indx");                 /* enabling this entry */
559
         url_fskip(pb, 8);
560
         put_le32(pb, avi->riff_id);          /* nEntriesInUse */
561
         url_fskip(pb, 16*avi->riff_id);
562
         put_le64(pb, ix);                    /* qwOffset */
563
         put_le32(pb, pos - ix);              /* dwSize */
564
         put_le32(pb, avi->indexes[i].entry); /* dwDuration */
565

    
566
         url_fseek(pb, pos, SEEK_SET);
567
    }
568
    return 0;
569
}
570

    
571
static int avi_write_idx1(AVFormatContext *s)
572
{
573
    ByteIOContext *pb = &s->pb;
574
    AVIContext *avi = s->priv_data;
575
    offset_t file_size, idx_chunk;
576
    int i, n, nb_frames, au_byterate, au_ssize, au_scale;
577
    AVCodecContext *stream;
578
    unsigned char tag[5];
579

    
580
    if (!url_is_streamed(pb)) {
581
        AVIIentry* ie = 0, *tie;
582
        int entry[MAX_STREAMS];
583
        int empty, stream_id = -1;
584

    
585
        idx_chunk = start_tag(pb, "idx1");
586
        memset(&entry[0], 0, sizeof(entry));
587
        do {
588
            empty = 1;
589
            for (i=0; i<s->nb_streams; i++) {
590
                 if (avi->indexes[i].entry <= entry[i])
591
                     continue;
592

    
593
                 tie = avi_get_ientry(&avi->indexes[i], entry[i]);
594
                 if (empty || tie->pos < ie->pos) {
595
                     ie = tie;
596
                     stream_id = i;
597
                 }
598
                 empty = 0;
599
            }
600
            if (!empty) {
601
                avi_stream2fourcc(&tag[0], stream_id,
602
                                  s->streams[stream_id]->codec->codec_type);
603
                put_tag(pb, &tag[0]);
604
                put_le32(pb, ie->flags);
605
                put_le32(pb, ie->pos);
606
                put_le32(pb, ie->len);
607
                entry[stream_id]++;
608
            }
609
        } while (!empty);
610
        end_tag(pb, idx_chunk);
611

    
612
        /* Fill in frame/sample counters */
613
        file_size = url_ftell(pb);
614
        nb_frames = 0;
615
        for(n=0;n<s->nb_streams;n++) {
616
            if (avi->frames_hdr_strm[n] != 0) {
617
                stream = s->streams[n]->codec;
618
                url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
619
                ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
620
                if (au_ssize == 0) {
621
                    put_le32(pb, avi->packet_count[n]);
622
                    nb_frames += avi->packet_count[n];
623
                } else {
624
                    put_le32(pb, avi->audio_strm_length[n] / au_ssize);
625
                }
626
            }
627
       }
628
       if (avi->frames_hdr_all != 0) {
629
           url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
630
           put_le32(pb, nb_frames);
631
       }
632
       url_fseek(pb, file_size, SEEK_SET);
633
    }
634
    return 0;
635
}
636

    
637
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
638
{
639
    AVIContext *avi = s->priv_data;
640
    ByteIOContext *pb = &s->pb;
641
    unsigned char tag[5];
642
    unsigned int flags=0;
643
    const int stream_index= pkt->stream_index;
644
    AVCodecContext *enc= s->streams[stream_index]->codec;
645
    int size= pkt->size;
646

    
647
//    av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
648
    while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
649
        AVPacket empty_packet;
650

    
651
        av_init_packet(&empty_packet);
652
        empty_packet.size= 0;
653
        empty_packet.data= NULL;
654
        empty_packet.stream_index= stream_index;
655
        avi_write_packet(s, &empty_packet);
656
//        av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
657
    }
658
    avi->packet_count[stream_index]++;
659

    
660
    // Make sure to put an OpenDML chunk when the file size exceeds the limits
661
    if (!url_is_streamed(pb) &&
662
        (url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
663

    
664
        avi_write_ix(s);
665
        end_tag(pb, avi->movi_list);
666

    
667
        if (avi->riff_id == 1)
668
            avi_write_idx1(s);
669

    
670
        end_tag(pb, avi->riff_start);
671
        avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
672
    }
673

    
674
    avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
675
    if(pkt->flags&PKT_FLAG_KEY)
676
        flags = 0x10;
677
    if (enc->codec_type == CODEC_TYPE_AUDIO) {
678
       avi->audio_strm_length[stream_index] += size;
679
    }
680

    
681
    if (!url_is_streamed(&s->pb)) {
682
        AVIIndex* idx = &avi->indexes[stream_index];
683
        int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
684
        int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
685
        if (idx->ents_allocated <= idx->entry) {
686
            idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
687
            if (!idx->cluster)
688
                return -1;
689
            idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
690
            if (!idx->cluster[cl])
691
                return -1;
692
            idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
693
        }
694

    
695
        idx->cluster[cl][id].flags = flags;
696
        idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
697
        idx->cluster[cl][id].len = size;
698
        idx->entry++;
699
    }
700

    
701
    put_buffer(pb, tag, 4);
702
    put_le32(pb, size);
703
    put_buffer(pb, pkt->data, size);
704
    if (size & 1)
705
        put_byte(pb, 0);
706

    
707
    put_flush_packet(pb);
708
    return 0;
709
}
710

    
711
static int avi_write_trailer(AVFormatContext *s)
712
{
713
    AVIContext *avi = s->priv_data;
714
    ByteIOContext *pb = &s->pb;
715
    int res = 0;
716
    int i, j, n, nb_frames;
717
    offset_t file_size;
718

    
719
    if (!url_is_streamed(pb))
720
    {
721
    if (avi->riff_id == 1) {
722
        end_tag(pb, avi->movi_list);
723
        res = avi_write_idx1(s);
724
        end_tag(pb, avi->riff_start);
725
    } else {
726
        avi_write_ix(s);
727
        end_tag(pb, avi->movi_list);
728
        end_tag(pb, avi->riff_start);
729

    
730
        file_size = url_ftell(pb);
731
        url_fseek(pb, avi->odml_list - 8, SEEK_SET);
732
        put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
733
        url_fskip(pb, 16);
734

    
735
        for (n=nb_frames=0;n<s->nb_streams;n++) {
736
             AVCodecContext *stream = s->streams[n]->codec;
737
             if (stream->codec_type == CODEC_TYPE_VIDEO) {
738
                 if (nb_frames < avi->packet_count[n])
739
                     nb_frames = avi->packet_count[n];
740
             } else {
741
                 if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
742
                     nb_frames += avi->packet_count[n];
743
                }
744
            }
745
        }
746
        put_le32(pb, nb_frames);
747
        url_fseek(pb, file_size, SEEK_SET);
748
    }
749
    }
750
    put_flush_packet(pb);
751

    
752
    for (i=0; i<MAX_STREAMS; i++) {
753
         for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
754
              av_free(avi->indexes[i].cluster[j]);
755
         av_free(avi->indexes[i].cluster);
756
         avi->indexes[i].cluster = NULL;
757
         avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
758
    }
759

    
760
    return res;
761
}
762

    
763
static AVOutputFormat avi_oformat = {
764
    "avi",
765
    "avi format",
766
    "video/x-msvideo",
767
    "avi",
768
    sizeof(AVIContext),
769
    CODEC_ID_MP2,
770
    CODEC_ID_MPEG4,
771
    avi_write_header,
772
    avi_write_packet,
773
    avi_write_trailer,
774
};
775

    
776
int avienc_init(void)
777
{
778
    av_register_output_format(&avi_oformat);
779
    return 0;
780
}
781
#endif //CONFIG_MUXERS