static int avi_write_ix(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVIContext *avi = s->priv_data;
char tag[5];
char ix_tag[] = "ix00";
int i, j;
av_assert0(pb->seekable);
if (avi->riff_id > AVI_MASTER_INDEX_SIZE) {
av_log(s, AV_LOG_ERROR, "Invalid riff index %d > %d\n",
avi->riff_id, AVI_MASTER_INDEX_SIZE);
return AVERROR(EINVAL);
}
for (i=0;i<s->nb_streams;i++) {
AVIStream *avist= s->streams[i]->priv_data;
int64_t ix, pos;
avi_stream2fourcc(tag, i, s->streams[i]->codec->codec_type);
ix_tag[3] = '0' + i;
/* Writing AVI OpenDML leaf index chunk */
ix = avio_tell(pb);
ffio_wfourcc(pb, ix_tag); /* ix?? */
avio_wl32(pb, avist->indexes.entry * 8 + 24);
/* chunk size */
avio_wl16(pb, 2); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
avio_wl32(pb, avist->indexes.entry);
/* nEntriesInUse */
ffio_wfourcc(pb, tag); /* dwChunkId */
avio_wl64(pb, avi->movi_list);/* qwBaseOffset */
avio_wl32(pb, 0); /* dwReserved_3 (must be 0) */
for (j=0; j<avist->indexes.entry; j++) {
AVIIentry* ie = avi_get_ientry(&avist->indexes, j);
avio_wl32(pb, ie->pos + 8);
avio_wl32(pb, ((uint32_t)ie->len & ~0x80000000) |
(ie->flags & 0x10 ? 0 : 0x80000000));
}
avio_flush(pb);
pos = avio_tell(pb);
/* Updating one entry in the AVI OpenDML master index */
avio_seek(pb, avist->indexes.indx_start - 8, SEEK_SET);
ffio_wfourcc(pb, "indx"); /* enabling this entry */
avio_skip(pb, 8);
avio_wl32(pb, avi->riff_id); /* nEntriesInUse */
avio_skip(pb, 16*avi->riff_id);
avio_wl64(pb, ix); /* qwOffset */
avio_wl32(pb, pos - ix); /* dwSize */
avio_wl32(pb, avist->indexes.entry); /* dwDuration */
avio_seek(pb, pos, SEEK_SET);
}
return 0;
}
static void write_odml_master(AVFormatContext *s, int stream_index)
{
AVIOContext *pb = s->pb;
AVStream *st = s->streams[stream_index];
AVCodecContext *enc = st->codec;
AVIStream *avist = st->priv_data;
unsigned char tag[5];
int j;
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons. */
avist->indexes.indx_start = ff_start_tag(pb, "JUNK");
avio_wl16(pb, 4); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
avio_wl32(pb, 0); /* nEntriesInUse (will fill out later on) */
ffio_wfourcc(pb, avi_stream2fourcc(tag, stream_index, enc->codec_type));
/* dwChunkId */
avio_wl64(pb, 0); /* dwReserved[3] */
avio_wl32(pb, 0); /* Must be 0. */
for (j = 0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
avio_wl64(pb, 0);
ff_end_tag(pb, avist->indexes.indx_start);
}
static int avi_write_idx1(avi_Context* AVI, avi_RIFF *riff)
{
int64_t idx_chunk;
int i;
char tag[5];
io_Stream *stream;
avi_Ientry* ie = 0, *tie;
int empty, stream_id = -1;
idx_chunk = avi_open_tag(AVI, "idx1");
for (i=0;i<AVI->stream_list_size;i++)
{
stream = get_stream(AVI->stream_list, i);
stream->entry=0;
}
do
{
empty = 1;
for (i=0;i<AVI->stream_list_size;i++)
{
stream = get_stream(AVI->stream_list, i);
avi_Index* indexes = (avi_Index*) stream->indexes;
if (indexes->entry <= stream->entry)
continue;
tie = avi_get_ientry(indexes, stream->entry);
if (empty || tie->pos < ie->pos)
{
ie = tie;
stream_id = i;
}
empty = 0;
}
if (!empty)
{
stream = get_stream(AVI->stream_list, stream_id);
avi_stream2fourcc(tag, stream);
io_write_4cc(AVI->writer, tag);
io_write_wl32(AVI->writer, ie->flags);
io_write_wl32(AVI->writer, ie->pos);
io_write_wl32(AVI->writer, ie->len);
stream->entry++;
}
}
while (!empty);
avi_close_tag(AVI, idx_chunk);
fprintf(stderr, "AVI: wrote idx1\n");
avi_write_counters(AVI, riff);
return 0;
}
static int avi_write_ix(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVIContext *avi = s->priv_data;
char tag[5];
char ix_tag[] = "ix00";
int i, j;
av_assert0(pb->seekable);
for (i = 0; i < s->nb_streams; i++) {
AVIStream *avist = s->streams[i]->priv_data;
if (avi->riff_id - avist->indexes.master_odml_riff_id_base == AVI_MASTER_INDEX_SIZE) {
int64_t pos;
int size = 8+2+1+1+4+8+4+4+16*AVI_MASTER_INDEX_SIZE;
pos = avio_tell(pb);
update_odml_entry(s, i, pos, size);
write_odml_master(s, i);
av_assert1(avio_tell(pb) - pos == size);
avist->indexes.master_odml_riff_id_base = avi->riff_id - 1;
}
av_assert0(avi->riff_id - avist->indexes.master_odml_riff_id_base < AVI_MASTER_INDEX_SIZE);
}
for (i = 0; i < s->nb_streams; i++) {
AVIStream *avist = s->streams[i]->priv_data;
int64_t ix;
avi_stream2fourcc(tag, i, s->streams[i]->codec->codec_type);
ix_tag[3] = '0' + i;
/* Writing AVI OpenDML leaf index chunk */
ix = avio_tell(pb);
ffio_wfourcc(pb, ix_tag); /* ix?? */
avio_wl32(pb, avist->indexes.entry * 8 + 24);
/* chunk size */
avio_wl16(pb, 2); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
avio_wl32(pb, avist->indexes.entry);
/* nEntriesInUse */
ffio_wfourcc(pb, tag); /* dwChunkId */
avio_wl64(pb, avi->movi_list); /* qwBaseOffset */
avio_wl32(pb, 0); /* dwReserved_3 (must be 0) */
for (j = 0; j < avist->indexes.entry; j++) {
AVIIentry *ie = avi_get_ientry(&avist->indexes, j);
avio_wl32(pb, ie->pos + 8);
avio_wl32(pb, ((uint32_t) ie->len & ~0x80000000) |
(ie->flags & 0x10 ? 0 : 0x80000000));
}
update_odml_entry(s, i, ix, avio_tell(pb) - ix);
}
return 0;
}
static int avi_write_ix(AVFormatContext *s)
{
ByteIOContext *pb = s->pb;
AVIContext *avi = s->priv_data;
char tag[5];
char ix_tag[] = "ix00";
int i, j;
assert(!url_is_streamed(pb));
if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
return -1;
for (i=0;i<s->nb_streams;i++) {
AVIStream *avist= s->streams[i]->priv_data;
int64_t ix, pos;
avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
ix_tag[3] = '0' + i;
/* Writing AVI OpenDML leaf index chunk */
ix = url_ftell(pb);
put_tag(pb, &ix_tag[0]); /* ix?? */
put_le32(pb, avist->indexes.entry * 8 + 24);
/* chunk size */
put_le16(pb, 2); /* wLongsPerEntry */
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
put_le32(pb, avist->indexes.entry);
/* nEntriesInUse */
put_tag(pb, &tag[0]); /* dwChunkId */
put_le64(pb, avi->movi_list);/* qwBaseOffset */
put_le32(pb, 0); /* dwReserved_3 (must be 0) */
for (j=0; j<avist->indexes.entry; j++) {
AVIIentry* ie = avi_get_ientry(&avist->indexes, j);
put_le32(pb, ie->pos + 8);
put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
(ie->flags & 0x10 ? 0 : 0x80000000));
}
put_flush_packet(pb);
pos = url_ftell(pb);
/* Updating one entry in the AVI OpenDML master index */
url_fseek(pb, avist->indexes.indx_start - 8, SEEK_SET);
put_tag(pb, "indx"); /* enabling this entry */
url_fskip(pb, 8);
put_le32(pb, avi->riff_id); /* nEntriesInUse */
url_fskip(pb, 16*avi->riff_id);
put_le64(pb, ix); /* qwOffset */
put_le32(pb, pos - ix); /* dwSize */
put_le32(pb, avist->indexes.entry); /* dwDuration */
url_fseek(pb, pos, SEEK_SET);
}
return 0;
}
static int avi_write_idx1(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVIContext *avi = s->priv_data;
int64_t idx_chunk;
int i;
char tag[5];
if (pb->seekable) {
AVIStream *avist;
AVIIentry* ie = 0, *tie;
int empty, stream_id = -1;
idx_chunk = ff_start_tag(pb, "idx1");
for(i=0; i<s->nb_streams; i++){
avist= s->streams[i]->priv_data;
avist->entry=0;
}
do {
empty = 1;
for (i=0; i<s->nb_streams; i++) {
avist= s->streams[i]->priv_data;
if (avist->indexes.entry <= avist->entry)
continue;
tie = avi_get_ientry(&avist->indexes, avist->entry);
if (empty || tie->pos < ie->pos) {
ie = tie;
stream_id = i;
}
empty = 0;
}
if (!empty) {
avist= s->streams[stream_id]->priv_data;
avi_stream2fourcc(tag, stream_id,
s->streams[stream_id]->codec->codec_type);
ffio_wfourcc(pb, tag);
avio_wl32(pb, ie->flags);
avio_wl32(pb, ie->pos);
avio_wl32(pb, ie->len);
avist->entry++;
}
} while (!empty);
ff_end_tag(pb, idx_chunk);
avi_write_counters(s, avi->riff_id);
}
return 0;
}
static int avi_write_idx1(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
AVIContext *avi = s->priv_data;
offset_t idx_chunk;
int i;
char tag[5];
if (!url_is_streamed(pb)) {
AVIIentry* ie = 0, *tie;
int entry[MAX_STREAMS];
int empty, stream_id = -1;
idx_chunk = start_tag(pb, "idx1");
memset(&entry[0], 0, sizeof(entry));
do {
empty = 1;
for (i=0; i<s->nb_streams; i++) {
if (avi->indexes[i].entry <= entry[i])
continue;
tie = avi_get_ientry(&avi->indexes[i], entry[i]);
if (empty || tie->pos < ie->pos) {
ie = tie;
stream_id = i;
}
empty = 0;
}
if (!empty) {
avi_stream2fourcc(&tag[0], stream_id,
s->streams[stream_id]->codec->codec_type);
put_tag(pb, &tag[0]);
put_le32(pb, ie->flags);
put_le32(pb, ie->pos);
put_le32(pb, ie->len);
entry[stream_id]++;
}
} while (!empty);
end_tag(pb, idx_chunk);
avi_write_counters(s, avi->riff_id);
}
return 0;
}
static int avi_write_header(AVFormatContext *s)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
AVCodecContext *stream, *video_enc;
int64_t list1, list2, strh, strf;
AVDictionaryEntry *t = NULL;
if (s->nb_streams > AVI_MAX_STREAM_COUNT) {
av_log(s, AV_LOG_ERROR, "AVI does not support >%d streams\n",
AVI_MAX_STREAM_COUNT);
return AVERROR(EINVAL);
}
for(n=0;n<s->nb_streams;n++) {
s->streams[n]->priv_data= av_mallocz(sizeof(AVIStream));
if(!s->streams[n]->priv_data)
return AVERROR(ENOMEM);
}
/* header list */
avi->riff_id = 0;
list1 = avi_start_new_riff(s, pb, "AVI ", "hdrl");
/* avi header */
ffio_wfourcc(pb, "avih");
avio_wl32(pb, 14 * 4);
bitrate = 0;
video_enc = NULL;
for(n=0;n<s->nb_streams;n++) {
stream = s->streams[n]->codec;
bitrate += stream->bit_rate;
if (stream->codec_type == AVMEDIA_TYPE_VIDEO)
video_enc = stream;
}
nb_frames = 0;
if(video_enc){
avio_wl32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
} else {
avio_wl32(pb, 0);
}
avio_wl32(pb, bitrate / 8); /* XXX: not quite exact */
avio_wl32(pb, 0); /* padding */
if (!pb->seekable)
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
else
avio_wl32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
avi->frames_hdr_all = avio_tell(pb); /* remember this offset to fill later */
avio_wl32(pb, nb_frames); /* nb frames, filled later */
avio_wl32(pb, 0); /* initial frame */
avio_wl32(pb, s->nb_streams); /* nb streams */
avio_wl32(pb, 1024 * 1024); /* suggested buffer size */
if(video_enc){
avio_wl32(pb, video_enc->width);
avio_wl32(pb, video_enc->height);
} else {
avio_wl32(pb, 0);
avio_wl32(pb, 0);
}
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
avio_wl32(pb, 0); /* reserved */
/* stream list */
for(i=0;i<n;i++) {
AVIStream *avist= s->streams[i]->priv_data;
list2 = ff_start_tag(pb, "LIST");
ffio_wfourcc(pb, "strl");
stream = s->streams[i]->codec;
/* stream generic header */
strh = ff_start_tag(pb, "strh");
switch(stream->codec_type) {
case AVMEDIA_TYPE_SUBTITLE:
// XSUB subtitles behave like video tracks, other subtitles
// are not (yet) supported.
if (stream->codec_id != AV_CODEC_ID_XSUB) {
av_log(s, AV_LOG_ERROR, "Subtitle streams other than DivX XSUB are not supported by the AVI muxer.\n");
return AVERROR_PATCHWELCOME;
}
case AVMEDIA_TYPE_VIDEO: ffio_wfourcc(pb, "vids"); break;
case AVMEDIA_TYPE_AUDIO: ffio_wfourcc(pb, "auds"); break;
// case AVMEDIA_TYPE_TEXT : ffio_wfourcc(pb, "txts"); break;
case AVMEDIA_TYPE_DATA : ffio_wfourcc(pb, "dats"); break;
}
if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
stream->codec_id == AV_CODEC_ID_XSUB)
avio_wl32(pb, stream->codec_tag);
else
avio_wl32(pb, 1);
avio_wl32(pb, 0); /* flags */
avio_wl16(pb, 0); /* priority */
avio_wl16(pb, 0); /* language */
avio_wl32(pb, 0); /* initial frame */
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
if ( stream->codec_type == AVMEDIA_TYPE_VIDEO
&& stream->codec_id != AV_CODEC_ID_XSUB
&& au_byterate > 1000LL*au_scale) {
au_byterate = 600;
au_scale = 1;
}
avpriv_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
if(stream->codec_id == AV_CODEC_ID_XSUB)
au_scale = au_byterate = 0;
avio_wl32(pb, au_scale); /* scale */
avio_wl32(pb, au_byterate); /* rate */
avio_wl32(pb, 0); /* start */
avist->frames_hdr_strm = avio_tell(pb); /* remember this offset to fill later */
if (!pb->seekable)
avio_wl32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
else
avio_wl32(pb, 0); /* length, XXX: filled later */
/* suggested buffer size */ //FIXME set at the end to largest chunk
if(stream->codec_type == AVMEDIA_TYPE_VIDEO)
avio_wl32(pb, 1024 * 1024);
else if(stream->codec_type == AVMEDIA_TYPE_AUDIO)
avio_wl32(pb, 12 * 1024);
else
avio_wl32(pb, 0);
avio_wl32(pb, -1); /* quality */
avio_wl32(pb, au_ssize); /* sample size */
avio_wl32(pb, 0);
avio_wl16(pb, stream->width);
avio_wl16(pb, stream->height);
ff_end_tag(pb, strh);
if(stream->codec_type != AVMEDIA_TYPE_DATA){
int ret;
strf = ff_start_tag(pb, "strf");
switch(stream->codec_type) {
case AVMEDIA_TYPE_SUBTITLE:
// XSUB subtitles behave like video tracks, other subtitles
// are not (yet) supported.
if (stream->codec_id != AV_CODEC_ID_XSUB) break;
case AVMEDIA_TYPE_VIDEO:
ff_put_bmp_header(pb, stream, ff_codec_bmp_tags, 0, 0);
break;
case AVMEDIA_TYPE_AUDIO:
if ((ret = ff_put_wav_header(pb, stream)) < 0) {
return ret;
}
break;
default:
av_log(s, AV_LOG_ERROR,
"Invalid or not supported codec type '%s' found in the input\n",
(char *)av_x_if_null(av_get_media_type_string(stream->codec_type), "?"));
return AVERROR(EINVAL);
}
ff_end_tag(pb, strf);
if ((t = av_dict_get(s->streams[i]->metadata, "title", NULL, 0))) {
ff_riff_write_info_tag(s->pb, "strn", t->value);
t = NULL;
}
if(stream->codec_id == AV_CODEC_ID_XSUB
&& (t = av_dict_get(s->streams[i]->metadata, "language", NULL, 0))) {
const char* langstr = av_convert_lang_to(t->value, AV_LANG_ISO639_1);
t = NULL;
if (langstr) {
char* str = av_asprintf("Subtitle - %s-xx;02", langstr);
ff_riff_write_info_tag(s->pb, "strn", str);
av_free(str);
}
}
}
if (pb->seekable) {
unsigned char tag[5];
int j;
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons.
*/
avist->indexes.entry = avist->indexes.ents_allocated = 0;
avist->indexes.indx_start = ff_start_tag(pb, "JUNK");
avio_wl16(pb, 4); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
avio_wl32(pb, 0); /* nEntriesInUse (will fill out later on) */
ffio_wfourcc(pb, avi_stream2fourcc(tag, i, stream->codec_type));
/* dwChunkId */
avio_wl64(pb, 0); /* dwReserved[3]
avio_wl32(pb, 0); Must be 0. */
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
avio_wl64(pb, 0);
ff_end_tag(pb, avist->indexes.indx_start);
}
if( stream->codec_type == AVMEDIA_TYPE_VIDEO
&& s->streams[i]->sample_aspect_ratio.num>0
&& s->streams[i]->sample_aspect_ratio.den>0){
int vprp= ff_start_tag(pb, "vprp");
AVRational dar = av_mul_q(s->streams[i]->sample_aspect_ratio,
(AVRational){stream->width, stream->height});
int num, den;
av_reduce(&num, &den, dar.num, dar.den, 0xFFFF);
avio_wl32(pb, 0); //video format = unknown
avio_wl32(pb, 0); //video standard= unknown
avio_wl32(pb, lrintf(1.0/av_q2d(stream->time_base)));
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl16(pb, den);
avio_wl16(pb, num);
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl32(pb, 1); //progressive FIXME
avio_wl32(pb, stream->height);
avio_wl32(pb, stream->width );
avio_wl32(pb, stream->height);
avio_wl32(pb, stream->width );
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
avio_wl32(pb, 0);
ff_end_tag(pb, vprp);
}
ff_end_tag(pb, list2);
}
if (pb->seekable) {
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
avi->odml_list = ff_start_tag(pb, "JUNK");
ffio_wfourcc(pb, "odml");
ffio_wfourcc(pb, "dmlh");
avio_wl32(pb, 248);
for (i = 0; i < 248; i+= 4)
avio_wl32(pb, 0);
ff_end_tag(pb, avi->odml_list);
}
ff_end_tag(pb, list1);
ff_riff_write_info(s);
/* some padding for easier tag editing */
list2 = ff_start_tag(pb, "JUNK");
for (i = 0; i < 1016; i += 4)
avio_wl32(pb, 0);
ff_end_tag(pb, list2);
avi->movi_list = ff_start_tag(pb, "LIST");
ffio_wfourcc(pb, "movi");
avio_flush(pb);
return 0;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = &s->pb;
unsigned char tag[5];
unsigned int flags=0;
const int stream_index= pkt->stream_index;
AVCodecContext *enc= s->streams[stream_index]->codec;
int size= pkt->size;
// av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
AVPacket empty_packet;
av_init_packet(&empty_packet);
empty_packet.size= 0;
empty_packet.data= NULL;
empty_packet.stream_index= stream_index;
avi_write_packet(s, &empty_packet);
// av_log(s, AV_LOG_DEBUG, "dup %"PRId64" %d\n", pkt->dts, avi->packet_count[stream_index]);
}
avi->packet_count[stream_index]++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (!url_is_streamed(pb) &&
(url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
}
avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
if(pkt->flags&PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == CODEC_TYPE_AUDIO) {
avi->audio_strm_length[stream_index] += size;
}
if (!url_is_streamed(&s->pb)) {
AVIIndex* idx = &avi->indexes[stream_index];
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
if (!idx->cluster)
return -1;
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
if (!idx->cluster[cl])
return -1;
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
put_buffer(pb, tag, 4);
put_le32(pb, size);
put_buffer(pb, pkt->data, size);
if (size & 1)
put_byte(pb, 0);
put_flush_packet(pb);
return 0;
}
static int avi_write_header(AVFormatContext *s)
{
AVIContext *avi = s->priv_data;
ByteIOContext *pb = &s->pb;
int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
AVCodecContext *stream, *video_enc;
offset_t list1, list2, strh, strf;
/* header list */
avi->riff_id = 0;
list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
/* avi header */
put_tag(pb, "avih");
put_le32(pb, 14 * 4);
bitrate = 0;
video_enc = NULL;
for(n=0;n<s->nb_streams;n++) {
stream = s->streams[n]->codec;
bitrate += stream->bit_rate;
if (stream->codec_type == CODEC_TYPE_VIDEO)
video_enc = stream;
}
nb_frames = 0;
if(video_enc){
put_le32(pb, (uint32_t)(INT64_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
} else {
put_le32(pb, 0);
}
put_le32(pb, bitrate / 8); /* XXX: not quite exact */
put_le32(pb, 0); /* padding */
if (url_is_streamed(pb))
put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
else
put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
put_le32(pb, nb_frames); /* nb frames, filled later */
put_le32(pb, 0); /* initial frame */
put_le32(pb, s->nb_streams); /* nb streams */
put_le32(pb, 1024 * 1024); /* suggested buffer size */
if(video_enc){
put_le32(pb, video_enc->width);
put_le32(pb, video_enc->height);
} else {
put_le32(pb, 0);
put_le32(pb, 0);
}
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
put_le32(pb, 0); /* reserved */
/* stream list */
for(i=0;i<n;i++) {
list2 = start_tag(pb, "LIST");
put_tag(pb, "strl");
stream = s->streams[i]->codec;
/* FourCC should really be set by the codec itself */
if (! stream->codec_tag) {
stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
}
/* stream generic header */
strh = start_tag(pb, "strh");
switch(stream->codec_type) {
case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
// case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
}
if(stream->codec_type == CODEC_TYPE_VIDEO)
put_le32(pb, stream->codec_tag);
else
put_le32(pb, 1);
put_le32(pb, 0); /* flags */
put_le16(pb, 0); /* priority */
put_le16(pb, 0); /* language */
put_le32(pb, 0); /* initial frame */
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
put_le32(pb, au_scale); /* scale */
put_le32(pb, au_byterate); /* rate */
av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
put_le32(pb, 0); /* start */
avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
if (url_is_streamed(pb))
put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
else
put_le32(pb, 0); /* length, XXX: filled later */
/* suggested buffer size */ //FIXME set at the end to largest chunk
if(stream->codec_type == CODEC_TYPE_VIDEO)
put_le32(pb, 1024 * 1024);
else if(stream->codec_type == CODEC_TYPE_AUDIO)
put_le32(pb, 12 * 1024);
else
put_le32(pb, 0);
put_le32(pb, -1); /* quality */
put_le32(pb, au_ssize); /* sample size */
put_le32(pb, 0);
put_le16(pb, stream->width);
put_le16(pb, stream->height);
end_tag(pb, strh);
if(stream->codec_type != CODEC_TYPE_DATA){
strf = start_tag(pb, "strf");
switch(stream->codec_type) {
case CODEC_TYPE_VIDEO:
put_bmp_header(pb, stream, codec_bmp_tags, 0);
break;
case CODEC_TYPE_AUDIO:
if (put_wav_header(pb, stream) < 0) {
av_free(avi);
return -1;
}
break;
default:
return -1;
}
end_tag(pb, strf);
}
if (!url_is_streamed(pb)) {
unsigned char tag[5];
int j;
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons.
*/
avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
avi->indexes[i].indx_start = start_tag(pb, "JUNK");
put_le16(pb, 4); /* wLongsPerEntry */
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
/* dwChunkId */
put_le64(pb, 0); /* dwReserved[3]
put_le32(pb, 0); Must be 0. */
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
put_le64(pb, 0);
end_tag(pb, avi->indexes[i].indx_start);
}
end_tag(pb, list2);
}
if (!url_is_streamed(pb)) {
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
avi->odml_list = start_tag(pb, "JUNK");
put_tag(pb, "odml");
put_tag(pb, "dmlh");
put_le32(pb, 248);
for (i = 0; i < 248; i+= 4)
put_le32(pb, 0);
end_tag(pb, avi->odml_list);
}
end_tag(pb, list1);
list2 = start_tag(pb, "LIST");
put_tag(pb, "INFO");
avi_write_info_tag(pb, "INAM", s->title);
avi_write_info_tag(pb, "IART", s->author);
avi_write_info_tag(pb, "ICOP", s->copyright);
avi_write_info_tag(pb, "ICMT", s->comment);
avi_write_info_tag(pb, "IPRD", s->album);
avi_write_info_tag(pb, "IGNR", s->genre);
if (s->track) {
char str_track[4];
snprintf(str_track, 4, "%d", s->track);
avi_write_info_tag(pb, "IPRT", str_track);
}
if(!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT))
avi_write_info_tag(pb, "ISFT", LIBAVFORMAT_IDENT);
end_tag(pb, list2);
/* some padding for easier tag editing */
list2 = start_tag(pb, "JUNK");
for (i = 0; i < 1016; i += 4)
put_le32(pb, 0);
end_tag(pb, list2);
avi->movi_list = start_tag(pb, "LIST");
put_tag(pb, "movi");
put_flush_packet(pb);
return 0;
}
static int avi_write_idx1(AVFormatContext *s)
{
ByteIOContext *pb = &s->pb;
AVIContext *avi = s->priv_data;
offset_t file_size, idx_chunk;
int i, n, nb_frames, au_byterate, au_ssize, au_scale;
AVCodecContext *stream;
unsigned char tag[5];
if (!url_is_streamed(pb)) {
AVIIentry* ie = 0, *tie;
int entry[MAX_STREAMS];
int empty, stream_id = -1;
idx_chunk = start_tag(pb, "idx1");
memset(&entry[0], 0, sizeof(entry));
do {
empty = 1;
for (i=0; i<s->nb_streams; i++) {
if (avi->indexes[i].entry <= entry[i])
continue;
tie = avi_get_ientry(&avi->indexes[i], entry[i]);
if (empty || tie->pos < ie->pos) {
ie = tie;
stream_id = i;
}
empty = 0;
}
if (!empty) {
avi_stream2fourcc(&tag[0], stream_id,
s->streams[stream_id]->codec.codec_type);
put_tag(pb, &tag[0]);
put_le32(pb, ie->flags);
put_le32(pb, ie->pos);
put_le32(pb, ie->len);
entry[stream_id]++;
}
} while (!empty);
end_tag(pb, idx_chunk);
/* Fill in frame/sample counters */
file_size = url_ftell(pb);
nb_frames = 0;
for(n=0;n<s->nb_streams;n++) {
if (avi->frames_hdr_strm[n] != 0) {
stream = &s->streams[n]->codec;
url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
if (stream->codec_type == CODEC_TYPE_VIDEO) {
put_le32(pb, stream->frame_number);
if (nb_frames < stream->frame_number)
nb_frames = stream->frame_number;
} else {
if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
put_le32(pb, stream->frame_number);
nb_frames += stream->frame_number;
} else {
parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
put_le32(pb, avi->audio_strm_length[n] / au_ssize);
}
}
}
}
if (avi->frames_hdr_all != 0) {
url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
put_le32(pb, nb_frames);
}
url_fseek(pb, file_size, SEEK_SET);
}
return 0;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
unsigned char tag[5];
unsigned int flags = 0;
const int stream_index = pkt->stream_index;
int size = pkt->size;
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
AVIStream *avist = s->streams[stream_index]->priv_data;
AVCodecContext *enc = s->streams[stream_index]->codec;
while (enc->block_align == 0 && pkt->dts != AV_NOPTS_VALUE &&
pkt->dts > avist->packet_count) {
AVPacket empty_packet;
av_init_packet(&empty_packet);
empty_packet.size = 0;
empty_packet.data = NULL;
empty_packet.stream_index = stream_index;
avi_write_packet(s, &empty_packet);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if (pkt->flags & AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
avist->audio_strm_length += size;
if (s->pb->seekable) {
int err;
AVIIndex *idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
if ((err = av_reallocp(&idx->cluster,
(cl + 1) * sizeof(*idx->cluster))) < 0) {
idx->ents_allocated = 0;
idx->entry = 0;
return err;
}
idx->cluster[cl] =
av_malloc(AVI_INDEX_CLUSTER_SIZE * sizeof(AVIIentry));
if (!idx->cluster[cl])
return -1;
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
return 0;
}
int avi_write_packet(avi_Context* AVI, int stream_index, BYTE *data, uint32_t size, int64_t dts, int block_align, int32_t flags)
{
char tag[5];
unsigned int i_flags=0;
io_Stream *stream= get_stream(AVI->stream_list, stream_index);
avi_RIFF* riff = avi_get_last_riff(AVI);
//align
while(block_align==0 && dts != AV_NOPTS_VALUE && dts > stream->packet_count)
avi_write_packet(AVI, stream_index, NULL, 0, AV_NOPTS_VALUE, 0, 0);
stream->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (io_get_offset(AVI->writer) - riff->riff_start > AVI_MAX_RIFF_SIZE)
{
avi_write_ix(AVI);
avi_close_tag(AVI, riff->movi_list);
if (riff->id == 1)
avi_write_idx1(AVI, riff);
avi_close_tag(AVI, riff->riff_start);
avi_add_new_riff(AVI);
riff = avi_get_last_riff(AVI); //update riff
}
avi_stream2fourcc(tag, stream);
if(flags & AV_PKT_FLAG_KEY) //key frame
i_flags = 0x10;
if (stream->type == STREAM_TYPE_AUDIO)
stream->audio_strm_length += size;
avi_Index* idx = (avi_Index*) stream->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry)
{
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
if (!idx->cluster)
return -1;
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(avi_Ientry));
if (!idx->cluster[cl])
return -1;
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = i_flags;
idx->cluster[cl][id].pos = io_get_offset(AVI->writer) - riff->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
io_write_4cc(AVI->writer, tag);
io_write_wl32(AVI->writer, size);
io_write_buf(AVI->writer, data, size);
if (size & 1)
io_write_w8(AVI->writer, 0);
io_flush_buffer(AVI->writer);
return 0;
}
static int avi_write_ix(avi_Context* AVI)
{
char tag[5];
char ix_tag[] = "ix00";
int i, j;
avi_RIFF *riff = avi_get_last_riff(AVI);
if (riff->id > AVI_MASTER_INDEX_SIZE)
return -1;
for (i=0;i<AVI->stream_list_size;i++)
{
io_Stream *stream = get_stream(AVI->stream_list, i);
int64_t ix, pos;
avi_stream2fourcc(tag, stream);
ix_tag[3] = '0' + i; /*only 10 streams supported*/
/* Writing AVI OpenDML leaf index chunk */
ix = io_get_offset(AVI->writer);
io_write_4cc(AVI->writer, ix_tag); /* ix?? */
avi_Index* indexes = (avi_Index *) stream->indexes;
io_write_wl32(AVI->writer, indexes->entry * 8 + 24);
/* chunk size */
io_write_wl16(AVI->writer, 2); /* wLongsPerEntry */
io_write_w8(AVI->writer, 0); /* bIndexSubType (0 == frame index) */
io_write_w8(AVI->writer, AVI_INDEX_OF_CHUNKS); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
io_write_wl32(AVI->writer, indexes->entry);
/* nEntriesInUse */
io_write_4cc(AVI->writer, tag); /* dwChunkId */
io_write_wl64(AVI->writer, riff->movi_list);/* qwBaseOffset */
io_write_wl32(AVI->writer, 0); /* dwReserved_3 (must be 0) */
for (j=0; j< indexes->entry; j++)
{
avi_Ientry* ie = avi_get_ientry(indexes, j);
io_write_wl32(AVI->writer, ie->pos + 8);
io_write_wl32(AVI->writer, ((uint32_t)ie->len & ~0x80000000) |
(ie->flags & 0x10 ? 0 : 0x80000000));
}
io_flush_buffer(AVI->writer);
pos = io_get_offset(AVI->writer); //current position
fprintf(stderr,"AVI: wrote ix %s with %i entries\n",tag, indexes->entry);
/* Updating one entry in the AVI OpenDML master index */
io_seek(AVI->writer, indexes->indx_start);
io_write_4cc(AVI->writer, "indx"); /* enabling this entry */
io_skip(AVI->writer, 8);
io_write_wl32(AVI->writer, riff->id); /* nEntriesInUse */
io_skip(AVI->writer, 16*(riff->id));
io_write_wl64(AVI->writer, ix); /* qwOffset */
io_write_wl32(AVI->writer, pos - ix); /* dwSize */
io_write_wl32(AVI->writer, indexes->entry); /* dwDuration */
//return to position
io_seek(AVI->writer, pos);
}
return 0;
}
//only for riff id = 1
void avi_create_riff_header(avi_Context* AVI, avi_RIFF* riff)
{
int64_t list1 = avi_create_riff_tags(AVI, riff);
avi_put_main_header(AVI, riff);
int i, j = 0;
for(j=0; j< AVI->stream_list_size; j++)
{
io_Stream* stream = get_stream(AVI->stream_list, j);
int64_t list2 = avi_open_tag(AVI, "LIST");
io_write_4cc(AVI->writer,"strl"); //stream list
if(stream->type == STREAM_TYPE_VIDEO)
{
avi_put_bmp_header(AVI, stream);
avi_put_vstream_format_header(AVI, stream);
}
else
{
avi_put_wav_header(AVI, stream);
avi_put_astream_format_header(AVI, stream);
}
/* Starting to lay out AVI OpenDML master index.
* We want to make it JUNK entry for now, since we'd
* like to get away without making AVI an OpenDML one
* for compatibility reasons.
*/
char tag[5];
avi_Index* indexes = (avi_Index*) stream->indexes;
indexes->entry = indexes->ents_allocated = 0;
indexes->indx_start = io_get_offset(AVI->writer);
int64_t ix = avi_open_tag(AVI, "JUNK"); // ’ix##’
io_write_wl16(AVI->writer, 4); // wLongsPerEntry must be 4 (size of each entry in aIndex array)
io_write_w8(AVI->writer, 0); // bIndexSubType must be 0 (frame index) or AVI_INDEX_2FIELD
io_write_w8(AVI->writer, AVI_INDEX_OF_INDEXES); // bIndexType (0 == AVI_INDEX_OF_INDEXES)
io_write_wl32(AVI->writer, 0); // nEntriesInUse (will fill out later on)
io_write_4cc(AVI->writer, avi_stream2fourcc(tag, stream)); // dwChunkId
io_write_wl32(AVI->writer, 0); // dwReserved[3] must be 0
io_write_wl32(AVI->writer, 0);
io_write_wl32(AVI->writer, 0);
for (i=0; i < AVI_MASTER_INDEX_SIZE; i++)
{
io_write_wl64(AVI->writer, 0); // absolute file offset, offset 0 is unused entry
io_write_wl32(AVI->writer, 0); // dwSize - size of index chunk at this offset
io_write_wl32(AVI->writer, 0); // dwDuration - time span in stream ticks
}
avi_close_tag(AVI, ix); //write the chunk size
if(stream->type == STREAM_TYPE_VIDEO)
avi_put_vproperties_header(AVI, stream);
avi_close_tag(AVI, list2); //write the chunk size
}
AVI->odml_list = avi_open_tag(AVI, "JUNK");
io_write_4cc(AVI->writer, "odml");
io_write_4cc(AVI->writer, "dmlh");
io_write_wl32(AVI->writer, 248);
for (i = 0; i < 248; i+= 4)
io_write_wl32(AVI->writer, 0);
avi_close_tag(AVI, AVI->odml_list);
avi_close_tag(AVI, list1); //write the chunk size
/* some padding for easier tag editing */
int64_t list3 = avi_open_tag(AVI, "JUNK");
for (i = 0; i < 1016; i += 4)
io_write_wl32(AVI->writer, 0);
avi_close_tag(AVI, list3); //write the chunk size
riff->movi_list = avi_open_tag(AVI, "LIST");
io_write_4cc(AVI->writer, "movi");
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
unsigned char tag[5];
unsigned int flags = 0;
const int stream_index = pkt->stream_index;
int size = pkt->size;
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
AVIStream *avist = s->streams[stream_index]->priv_data;
AVCodecContext *enc = s->streams[stream_index]->codec;
int ret;
if (enc->codec_id == AV_CODEC_ID_H264 && enc->codec_tag == MKTAG('H','2','6','4') && pkt->size) {
ret = ff_check_h264_startcode(s, s->streams[stream_index], pkt);
if (ret < 0)
return ret;
}
if ((ret = write_skip_frames(s, stream_index, pkt->dts)) < 0)
return ret;
if (pkt->dts != AV_NOPTS_VALUE)
avist->last_dts = pkt->dts + pkt->duration;
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if (pkt->flags & AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO)
avist->audio_strm_length += size;
if (s->pb->seekable) {
AVIIndex *idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
idx->cluster = av_realloc_f(idx->cluster, sizeof(void*), cl+1);
if (!idx->cluster) {
idx->ents_allocated = 0;
idx->entry = 0;
return AVERROR(ENOMEM);
}
idx->cluster[cl] =
av_malloc(AVI_INDEX_CLUSTER_SIZE * sizeof(AVIIentry));
if (!idx->cluster[cl])
return AVERROR(ENOMEM);
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
avist->max_size = FFMAX(avist->max_size, size);
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
return 0;
}
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
{
AVIContext *avi = s->priv_data;
AVIOContext *pb = s->pb;
unsigned char tag[5];
unsigned int flags=0;
const int stream_index= pkt->stream_index;
AVIStream *avist= s->streams[stream_index]->priv_data;
AVCodecContext *enc= s->streams[stream_index]->codec;
int size= pkt->size;
av_dlog(s, "dts:%s packet_count:%d stream_index:%d\n", av_ts2str(pkt->dts), avist->packet_count, stream_index);
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avist->packet_count && enc->codec_id != AV_CODEC_ID_XSUB && avist->packet_count){
AVPacket empty_packet;
if(pkt->dts - avist->packet_count > 60000){
av_log(s, AV_LOG_ERROR, "Too large number of skipped frames %"PRId64" > 60000\n", pkt->dts - avist->packet_count);
return AVERROR(EINVAL);
}
av_init_packet(&empty_packet);
empty_packet.size= 0;
empty_packet.data= NULL;
empty_packet.stream_index= stream_index;
avi_write_packet(s, &empty_packet);
av_dlog(s, "dup dts:%s packet_count:%d\n", av_ts2str(pkt->dts), avist->packet_count);
}
avist->packet_count++;
// Make sure to put an OpenDML chunk when the file size exceeds the limits
if (pb->seekable &&
(avio_tell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
avi_write_ix(s);
ff_end_tag(pb, avi->movi_list);
if (avi->riff_id == 1)
avi_write_idx1(s);
ff_end_tag(pb, avi->riff_start);
avi->movi_list = avi_start_new_riff(s, pb, "AVIX", "movi");
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
if(pkt->flags&AV_PKT_FLAG_KEY)
flags = 0x10;
if (enc->codec_type == AVMEDIA_TYPE_AUDIO) {
avist->audio_strm_length += size;
}
if (s->pb->seekable) {
AVIIndex* idx = &avist->indexes;
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
if (idx->ents_allocated <= idx->entry) {
idx->cluster = av_realloc_f(idx->cluster, sizeof(void*), cl+1);
if (!idx->cluster) {
idx->ents_allocated = 0;
idx->entry = 0;
return AVERROR(ENOMEM);
}
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
if (!idx->cluster[cl])
return AVERROR(ENOMEM);
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
}
idx->cluster[cl][id].flags = flags;
idx->cluster[cl][id].pos = avio_tell(pb) - avi->movi_list;
idx->cluster[cl][id].len = size;
idx->entry++;
}
avio_write(pb, tag, 4);
avio_wl32(pb, size);
avio_write(pb, pkt->data, size);
if (size & 1)
avio_w8(pb, 0);
return 0;
}
static int avi_write_ix(AVFormatContext *s)
{
AVIOContext *pb = s->pb;
AVIContext *avi = s->priv_data;
char tag[5];
char ix_tag[] = "ix00";
int i, j;
av_assert0(pb->seekable);
if (avi->riff_id > AVI_MASTER_INDEX_SIZE) {
av_log(s, AV_LOG_ERROR, "Invalid riff index %d > %d\n",
avi->riff_id, AVI_MASTER_INDEX_SIZE);
return AVERROR(EINVAL);
}
for (i = 0; i < s->nb_streams; i++) {
AVIStream *avist = s->streams[i]->priv_data;
int64_t ix, pos;
int au_byterate, au_ssize, au_scale;
avi_stream2fourcc(tag, i, s->streams[i]->codec->codec_type);
ix_tag[3] = '0' + i;
/* Writing AVI OpenDML leaf index chunk */
ix = avio_tell(pb);
ffio_wfourcc(pb, ix_tag); /* ix?? */
avio_wl32(pb, avist->indexes.entry * 8 + 24);
/* chunk size */
avio_wl16(pb, 2); /* wLongsPerEntry */
avio_w8(pb, 0); /* bIndexSubType (0 == frame index) */
avio_w8(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
avio_wl32(pb, avist->indexes.entry);
/* nEntriesInUse */
ffio_wfourcc(pb, tag); /* dwChunkId */
avio_wl64(pb, avi->movi_list); /* qwBaseOffset */
avio_wl32(pb, 0); /* dwReserved_3 (must be 0) */
for (j = 0; j < avist->indexes.entry; j++) {
AVIIentry *ie = avi_get_ientry(&avist->indexes, j);
avio_wl32(pb, ie->pos + 8);
avio_wl32(pb, ((uint32_t) ie->len & ~0x80000000) |
(ie->flags & 0x10 ? 0 : 0x80000000));
}
avio_flush(pb);
pos = avio_tell(pb);
/* Updating one entry in the AVI OpenDML master index */
avio_seek(pb, avist->indexes.indx_start - 8, SEEK_SET);
ffio_wfourcc(pb, "indx"); /* enabling this entry */
avio_skip(pb, 8);
avio_wl32(pb, avi->riff_id); /* nEntriesInUse */
avio_skip(pb, 16 * avi->riff_id);
avio_wl64(pb, ix); /* qwOffset */
avio_wl32(pb, pos - ix); /* dwSize */
ff_parse_specific_params(s->streams[i], &au_byterate, &au_ssize, &au_scale);
if (s->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO && au_ssize > 0) {
uint32_t audio_segm_size = (avist->audio_strm_length - avist->indexes.audio_strm_offset);
if ((audio_segm_size % au_ssize > 0) && !avist->sample_requested) {
avpriv_request_sample(s, "OpenDML index duration for audio packets with partial frames");
avist->sample_requested = 1;
}
avio_wl32(pb, audio_segm_size / au_ssize); /* dwDuration (sample count) */
} else
avio_wl32(pb, avist->indexes.entry); /* dwDuration (packet count) */
avio_seek(pb, pos, SEEK_SET);
}
return 0;
}
