/* buffer frames until we either:
* (a) have at least one frame from each stream
* (b) run out of memory */
void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags, double dts, double pts) {
if(dts == MP_NOPTS_VALUE) dts= s->timer;
if(pts == MP_NOPTS_VALUE) pts= s->timer; // this is wrong
if (s->muxer->muxbuf_skip_buffer) {
s->muxer->cont_write_chunk(s, len, flags, dts, pts);
}
else {
int num = s->muxer->muxbuf_num++;
muxbuf_t *buf, *tmp;
tmp = realloc_struct(s->muxer->muxbuf, (num+1), sizeof(muxbuf_t));
if(!tmp) {
mp_msg(MSGT_MUXER, MSGL_FATAL, MSGTR_MuxbufReallocErr);
return;
}
s->muxer->muxbuf = tmp;
buf = s->muxer->muxbuf + num;
/* buffer this frame */
buf->stream = s;
buf->dts= dts;
buf->pts= pts;
buf->len = len;
buf->flags = flags;
buf->buffer = malloc(len);
if (!buf->buffer) {
mp_msg(MSGT_MUXER, MSGL_FATAL, MSGTR_MuxbufMallocErr);
return;
}
memcpy(buf->buffer, s->buffer, buf->len);
s->muxbuf_seen = 1;
/* see if we need to keep buffering */
s->muxer->muxbuf_skip_buffer = 1;
for (num = 0; s->muxer->streams[num]; ++num)
if (!s->muxer->streams[num]->muxbuf_seen)
s->muxer->muxbuf_skip_buffer = 0;
/* see if we can flush buffer now */
if (s->muxer->muxbuf_skip_buffer)
muxer_flush(s->muxer);
}
/* this code moved directly from muxer_avi.c */
// alter counters:
if(s->h.dwSampleSize){
// CBR
s->h.dwLength+=len/s->h.dwSampleSize;
if(len%s->h.dwSampleSize) mp_msg(MSGT_MUXER, MSGL_WARN, MSGTR_WarningLenIsntDivisible);
} else {
// VBR
s->h.dwLength++;
}
s->timer=(double)s->h.dwLength*s->h.dwScale/s->h.dwRate;
s->size+=len;
return;
}
/* buffer frames until we either:
* (a) have at least one non-empty frame from each stream
* (b) run out of memory */
void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags, double dts, double pts) {
if(dts == MP_NOPTS_VALUE) dts= s->timer;
if(pts == MP_NOPTS_VALUE) pts= s->timer; // this is wrong
if (s->muxer->muxbuf_skip_buffer) {
s->muxer->cont_write_chunk(s, len, flags, dts, pts);
}
else {
int num = s->muxer->muxbuf_num++;
muxbuf_t *buf, *tmp;
tmp = realloc_struct(s->muxer->muxbuf, (num+1), sizeof(muxbuf_t));
if(!tmp) {
mp_msg(MSGT_MUXER, MSGL_FATAL, MSGTR_MuxbufReallocErr);
return;
}
s->muxer->muxbuf = tmp;
buf = s->muxer->muxbuf + num;
/* buffer this frame */
buf->stream = s;
buf->dts= dts;
buf->pts= pts;
buf->len = len;
buf->flags = flags;
buf->buffer = malloc(len);
if (!buf->buffer) {
mp_msg(MSGT_MUXER, MSGL_FATAL, MSGTR_MuxbufMallocErr);
return;
}
memcpy(buf->buffer, s->buffer, buf->len);
/* If mencoder inserts "repeat last frame" chunks with len == 0
* before the encoder is configured and first real frame is output
* or a broken file starts a stream with such frames, then muxer
* won't find needed info for writing initial header.
* Wait until the first real frame is seen. */
if (len > 0)
s->muxbuf_seen = 1;
/* see if we need to keep buffering */
s->muxer->muxbuf_skip_buffer = 1;
for (num = 0; s->muxer->streams[num]; ++num)
if (!s->muxer->streams[num]->muxbuf_seen)
s->muxer->muxbuf_skip_buffer = 0;
/* see if we can flush buffer now */
if (s->muxer->muxbuf_skip_buffer)
muxer_flush(s->muxer);
}
/* this code moved directly from muxer_avi.c */
// alter counters:
if(s->h.dwSampleSize){
// CBR
s->h.dwLength+=len/s->h.dwSampleSize;
if(len%s->h.dwSampleSize) mp_msg(MSGT_MUXER, MSGL_WARN, MSGTR_WarningLenIsntDivisible);
} else {
// VBR
s->h.dwLength++;
}
s->timer=(double)s->h.dwLength*s->h.dwScale/s->h.dwRate;
s->size+=len;
return;
}
