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ogg/speex: set correct timestamp and duration for the first packet.

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The first timestamp should be negative due to delay.
Also, do not set AVCodecContext.frame_size unnecessarily.
This commit is contained in:
Justin Ruggles 2011-10-19 13:28:12 -04:00
parent 4ee247a2bd
commit 0e69c04773
1 changed files with 9 additions and 11 deletions
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20
libavformat/oggparsespeex.c
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@ -31,6 +31,7 @@
#include "oggdec.h"
struct speex_params {
int packet_size;
int final_packet_duration;
int seq;
};
@ -58,14 +59,10 @@ static int speex_header(AVFormatContext *s, int idx) {
st->codec->sample_rate = AV_RL32(p + 36);
st->codec->channels = AV_RL32(p + 48);
/* We treat the whole Speex packet as a single frame everywhere Speex
is handled in Libav. This avoids the complexities of splitting
and joining individual Speex frames, which are not always
byte-aligned. */
st->codec->frame_size = AV_RL32(p + 56);
frames_per_packet = AV_RL32(p + 64);
spxp->packet_size = AV_RL32(p + 56);
frames_per_packet = AV_RL32(p + 64);
if (frames_per_packet)
st->codec->frame_size *= frames_per_packet;
spxp->packet_size *= frames_per_packet;
st->codec->extradata_size = os->psize;
st->codec->extradata = av_malloc(st->codec->extradata_size
@ -95,7 +92,7 @@ static int speex_packet(AVFormatContext *s, int idx)
struct ogg *ogg = s->priv_data;
struct ogg_stream *os = ogg->streams + idx;
struct speex_params *spxp = os->private;
int packet_size = s->streams[idx]->codec->frame_size;
int packet_size = spxp->packet_size;
if (os->flags & OGG_FLAG_EOS && os->lastpts != AV_NOPTS_VALUE &&
os->granule > 0) {
@ -108,9 +105,10 @@ static int speex_packet(AVFormatContext *s, int idx)
if (!os->lastpts && os->granule > 0)
/* first packet */
os->pduration = os->granule - packet_size * (ogg_page_packets(os) - 1);
else if (os->flags & OGG_FLAG_EOS && os->segp == os->nsegs &&
spxp->final_packet_duration)
os->lastpts = os->lastdts = os->granule - packet_size *
ogg_page_packets(os);
if (os->flags & OGG_FLAG_EOS && os->segp == os->nsegs &&
spxp->final_packet_duration)
/* final packet */
os->pduration = spxp->final_packet_duration;
else