* Ogg bitstream support
* Luca Barbato <lu_zero@gentoo.org>
* Based on tcvp implementation
- *
*/
-/**
+/*
Copyright (C) 2005 Michael Ahlberg, Måns Rullgård
Permission is hereby granted, free of charge, to any person
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
-**/
+ */
#include <stdio.h>
#include "oggdec.h"
#include "avformat.h"
+#include "internal.h"
#include "vorbiscomment.h"
#define MAX_PAGE_SIZE 65307
&ff_vorbis_codec,
&ff_theora_codec,
&ff_flac_codec,
+ &ff_celt_codec,
&ff_old_dirac_codec,
&ff_old_flac_codec,
&ff_ogm_video_codec,
ogg->state = ost->next;
if (!discard){
+ struct ogg_stream *old_streams = ogg->streams;
+
for (i = 0; i < ogg->nstreams; i++)
av_free (ogg->streams[i].buf);
avio_seek (bc, ost->pos, SEEK_SET);
ogg->curidx = ost->curidx;
ogg->nstreams = ost->nstreams;
- memcpy(ogg->streams, ost->streams,
- ost->nstreams * sizeof(*ogg->streams));
+ ogg->streams = av_realloc (ogg->streams,
+ ogg->nstreams * sizeof (*ogg->streams));
+
+ if (ogg->streams) {
+ memcpy(ogg->streams, ost->streams,
+ ost->nstreams * sizeof(*ogg->streams));
+ } else {
+ av_free(old_streams);
+ ogg->nstreams = 0;
+ }
}
av_free (ost);
os->header = -1;
if (new_avstream) {
- st = av_new_stream(s, idx);
+ st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
- av_set_pts_info(st, 64, 1, 1000000);
+ st->id = idx;
+ avpriv_set_pts_info(st, 64, 1, 1000000);
}
return idx;
AVIOContext *bc = s->pb;
struct ogg *ogg = s->priv_data;
struct ogg_stream *os;
- int i = 0;
+ int ret, i = 0;
int flags, nsegs;
uint64_t gp;
uint32_t serial;
uint8_t sync[4];
int sp = 0;
- if (avio_read (bc, sync, 4) < 4)
- return -1;
+ ret = avio_read(bc, sync, 4);
+ if (ret < 4)
+ return ret < 0 ? ret : AVERROR_EOF;
do{
int c;
c = avio_r8(bc);
if (bc->eof_reached)
- return -1;
+ return AVERROR_EOF;
sync[sp++ & 3] = c;
}while (i++ < MAX_PAGE_SIZE);
if (i >= MAX_PAGE_SIZE){
av_log (s, AV_LOG_INFO, "ogg, can't find sync word\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (avio_r8(bc) != 0) /* version */
- return -1;
+ return AVERROR_INVALIDDATA;
flags = avio_r8(bc);
gp = avio_rl64 (bc);
idx = ogg_new_stream(s, serial, 1);
}
if (idx < 0)
- return -1;
+ return idx;
}
os = ogg->streams + idx;
if(os->psize > 0)
ogg_new_buf(ogg, idx);
- if (avio_read (bc, os->segments, nsegs) < nsegs)
- return -1;
+ ret = avio_read(bc, os->segments, nsegs);
+ if (ret < nsegs)
+ return ret < 0 ? ret : AVERROR_EOF;
os->nsegs = nsegs;
os->segp = 0;
os->buf = nb;
}
- if (avio_read (bc, os->buf + os->bufpos, size) < size)
- return -1;
+ ret = avio_read(bc, os->buf + os->bufpos, size);
+ if (ret < size)
+ return ret < 0 ? ret : AVERROR_EOF;
os->bufpos += size;
os->granule = gp;
int64_t *fpos)
{
struct ogg *ogg = s->priv_data;
- int idx, i;
+ int idx, i, ret;
struct ogg_stream *os;
int complete = 0;
int segp = 0, psize = 0;
idx = ogg->curidx;
while (idx < 0){
- if (ogg_read_page (s, &idx) < 0)
- return -1;
+ ret = ogg_read_page(s, &idx);
+ if (ret < 0)
+ return ret;
}
os = ogg->streams + idx;
if (os->header < 0){
os->codec = ogg_find_codec (os->buf, os->bufpos);
if (!os->codec){
+ av_log(s, AV_LOG_WARNING, "Codec not found\n");
os->header = 0;
return 0;
}
static int ogg_get_headers(AVFormatContext *s)
{
struct ogg *ogg = s->priv_data;
+ int ret;
do{
- if (ogg_packet (s, NULL, NULL, NULL, NULL) < 0)
- return -1;
+ ret = ogg_packet(s, NULL, NULL, NULL, NULL);
+ if (ret < 0)
+ return ret;
}while (!ogg->headers);
av_dlog(s, "found headers\n");
static int ogg_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
struct ogg *ogg = s->priv_data;
- int i;
+ int ret, i;
ogg->curidx = -1;
//linear headers seek from start
- if (ogg_get_headers (s) < 0){
- return -1;
- }
+ ret = ogg_get_headers(s);
+ if (ret < 0)
+ return ret;
for (i = 0; i < ogg->nstreams; i++)
if (ogg->streams[i].header < 0)
{
struct ogg *ogg;
struct ogg_stream *os;
- int idx = -1;
+ int idx = -1, ret;
int pstart, psize;
int64_t fpos, pts, dts;
//Get an ogg packet
retry:
do{
- if (ogg_packet (s, &idx, &pstart, &psize, &fpos) < 0)
- return AVERROR(EIO);
+ ret = ogg_packet(s, &idx, &pstart, &psize, &fpos);
+ if (ret < 0)
+ return ret;
}while (idx < 0 || !s->streams[idx]);
ogg = s->priv_data;
os->keyframe_seek = 0;
//Alloc a pkt
- if (av_new_packet (pkt, psize) < 0)
- return AVERROR(EIO);
+ ret = av_new_packet(pkt, psize);
+ if (ret < 0)
+ return ret;
pkt->stream_index = idx;
memcpy (pkt->data, os->buf + pstart, psize);
int64_t *pos_arg, int64_t pos_limit)
{
struct ogg *ogg = s->priv_data;
- struct ogg_stream *os = ogg->streams + stream_index;
AVIOContext *bc = s->pb;
int64_t pts = AV_NOPTS_VALUE;
- int i;
+ int i = -1;
avio_seek(bc, *pos_arg, SEEK_SET);
ogg_reset(ogg);
while (avio_tell(bc) < pos_limit && !ogg_packet(s, &i, NULL, NULL, pos_arg)) {
if (i == stream_index) {
+ struct ogg_stream *os = ogg->streams + stream_index;
pts = ogg_calc_pts(s, i, NULL);
if (os->keyframe_seek && !(os->pflags & AV_PKT_FLAG_KEY))
pts = AV_NOPTS_VALUE;
&& !(flags & AVSEEK_FLAG_ANY))
os->keyframe_seek = 1;
- ret = av_seek_frame_binary(s, stream_index, timestamp, flags);
+ ret = ff_seek_frame_binary(s, stream_index, timestamp, flags);
+ os = ogg->streams + stream_index;
if (ret < 0)
os->keyframe_seek = 0;
return ret;