mirror of
https://github.com/mpv-player/mpv
synced 2024-12-14 02:45:43 +00:00
7a8f8317fd
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17024 b3059339-0415-0410-9bf9-f77b7e298cf2
153 lines
4.3 KiB
C
153 lines
4.3 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <unistd.h>
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#include "config.h"
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#include "version.h"
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#include "aviheader.h"
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#include "ms_hdr.h"
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#include "muxer.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stheader.h"
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muxer_t *muxer_new_muxer(int type,FILE *f){
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muxer_t* muxer=malloc(sizeof(muxer_t));
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memset(muxer,0,sizeof(muxer_t));
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muxer->file = f;
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switch (type) {
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case MUXER_TYPE_MPEG:
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if(! muxer_init_muxer_mpeg(muxer))
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return NULL;
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break;
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case MUXER_TYPE_RAWVIDEO:
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if(! muxer_init_muxer_rawvideo(muxer))
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return NULL;
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break;
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case MUXER_TYPE_RAWAUDIO:
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if(! muxer_init_muxer_rawaudio(muxer))
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return NULL;
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break;
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#ifdef USE_LIBAVFORMAT
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case MUXER_TYPE_LAVF:
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if(! muxer_init_muxer_lavf(muxer))
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return NULL;
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break;
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#endif
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case MUXER_TYPE_AVI:
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default:
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if(! muxer_init_muxer_avi(muxer))
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return NULL;
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}
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return muxer;
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}
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/* buffer frames until we either:
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* (a) have at least one frame from each stream
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* (b) run out of memory */
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void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags) {
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if (s->muxer->muxbuf_skip_buffer) {
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s->muxer->cont_write_chunk(s, len, flags);
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}
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else {
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int num = s->muxer->muxbuf_num++;
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muxbuf_t *buf, *tmp;
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tmp = realloc(s->muxer->muxbuf, (num+1) * sizeof(muxbuf_t));
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if(!tmp) {
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mp_msg(MSGT_MUXER, MSGL_FATAL, "Muxer frame buffer cannot reallocate memory!\n");
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return;
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}
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s->muxer->muxbuf = tmp;
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buf = s->muxer->muxbuf + num;
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/* buffer this frame */
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buf->stream = s;
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buf->timer = s->timer;
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buf->len = len;
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buf->flags = flags;
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buf->buffer = malloc(len * sizeof (unsigned char));
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if (!buf->buffer) {
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mp_msg(MSGT_MUXER, MSGL_FATAL, "Muxer frame buffer cannot allocate memory!\n");
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return;
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}
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memcpy(buf->buffer, s->buffer, buf->len);
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s->muxbuf_seen = 1;
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/* see if we need to keep buffering */
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s->muxer->muxbuf_skip_buffer = 1;
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for (num = 0; s->muxer->streams[num]; ++num)
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if (!s->muxer->streams[num]->muxbuf_seen)
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s->muxer->muxbuf_skip_buffer = 0;
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/* see if we can flush buffer now */
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if (s->muxer->muxbuf_skip_buffer) {
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muxbuf_t *tmp_buf = malloc(sizeof(muxbuf_t));
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if (!tmp_buf) {
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mp_msg(MSGT_MUXER, MSGL_FATAL, "Muxer frame buffer cannot allocate memory!\n");
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return;
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}
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mp_msg(MSGT_MUXER, MSGL_V, "Muxer frame buffer sending %d frame(s) to muxer.\n",
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s->muxer->muxbuf_num);
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/* fix parameters for all streams */
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for (num = 0; s->muxer->streams[num]; ++num) {
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muxer_stream_t *str = s->muxer->streams[num];
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if(str->muxer->fix_stream_parameters)
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muxer_stream_fix_parameters(str->muxer, str);
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}
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/* write header */
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mp_msg(MSGT_MUXER, MSGL_INFO, MSGTR_WritingAVIHeader);
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if (s->muxer->cont_write_header)
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muxer_write_header(s->muxer);
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/* send all buffered frames to muxer */
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for (num = 0; num < s->muxer->muxbuf_num; ++num) {
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buf = s->muxer->muxbuf + num;
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s = buf->stream;
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/* 1. save timer and buffer (might have changed by now) */
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tmp_buf->timer = s->timer;
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tmp_buf->buffer = s->buffer;
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/* 2. move stored timer and buffer into stream and mux it */
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s->timer = buf->timer;
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s->buffer = buf->buffer;
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s->muxer->cont_write_chunk(s, buf->len, buf->flags);
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/* 3. restore saved timer and buffer */
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s->timer = tmp_buf->timer;
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s->buffer = tmp_buf->buffer;
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}
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free(tmp_buf);
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free(s->muxer->muxbuf);
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s->muxer->muxbuf_num = 0;
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}
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}
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/* this code moved directly from muxer_avi.c */
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// alter counters:
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if(s->h.dwSampleSize){
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// CBR
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s->h.dwLength+=len/s->h.dwSampleSize;
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if(len%s->h.dwSampleSize) mp_msg(MSGT_MUXER, MSGL_WARN, "Warning! len isn't divisable by samplesize!\n");
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} else {
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// VBR
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s->h.dwLength++;
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}
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s->timer=(double)s->h.dwLength*s->h.dwScale/s->h.dwRate;
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s->size+=len;
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return;
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}
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