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r3d: do not create the audio stream until we know the sample rate

This commit is contained in:
Anton Khirnov 2015-10-21 11:22:13 +02:00
parent 9f1eccb97b
commit 6bf4c1d711
1 changed files with 25 additions and 12 deletions
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37
libavformat/r3d.c
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@ -29,6 +29,8 @@ typedef struct R3DContext {
unsigned video_offsets_count;
unsigned *video_offsets;
unsigned rdvo_offset;
int audio_channels;
} R3DContext;
typedef struct Atom {
@ -52,6 +54,7 @@ static int read_atom(AVFormatContext *s, Atom *atom)
static int r3d_read_red1(AVFormatContext *s)
{
AVStream *st = avformat_new_stream(s, NULL);
R3DContext *r3d = s->priv_data;
char filename[258];
int tmp;
int av_unused tmp2;
@ -89,17 +92,8 @@ static int r3d_read_red1(AVFormatContext *s)
st->avg_frame_rate = framerate;
}
tmp = avio_r8(s->pb); // audio channels
r3d->audio_channels = avio_r8(s->pb); // audio channels
av_log(s, AV_LOG_TRACE, "audio channels %d\n", tmp);
if (tmp > 0) {
AVStream *ast = avformat_new_stream(s, NULL);
if (!ast)
return AVERROR(ENOMEM);
ast->codec->codec_type = AVMEDIA_TYPE_AUDIO;
ast->codec->codec_id = AV_CODEC_ID_PCM_S32BE;
ast->codec->channels = tmp;
avpriv_set_pts_info(ast, 32, 1, st->time_base.den);
}
avio_read(s->pb, filename, 257);
filename[sizeof(filename)-1] = 0;
@ -183,6 +177,11 @@ static int r3d_read_header(AVFormatContext *s)
return -1;
}
/* we cannot create the audio stream now because we do not know the
* sample rate */
if (r3d->audio_channels)
s->ctx_flags |= AVFMTCTX_NOHEADER;
s->internal->data_offset = avio_tell(s->pb);
av_log(s, AV_LOG_TRACE, "data offset %#"PRIx64"\n", s->internal->data_offset);
if (!s->pb->seekable)
@ -271,13 +270,26 @@ static int r3d_read_redv(AVFormatContext *s, AVPacket *pkt, Atom *atom)
static int r3d_read_reda(AVFormatContext *s, AVPacket *pkt, Atom *atom)
{
AVStream *st = s->streams[1];
R3DContext *r3d = s->priv_data;
AVStream *st;
int av_unused tmp, tmp2;
int samples, size;
int64_t pos = avio_tell(s->pb);
unsigned dts;
int ret;
if (s->nb_streams < 2) {
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_PCM_S32BE;
st->codec->channels = r3d->audio_channels;
avpriv_set_pts_info(st, 32, 1, s->streams[0]->time_base.den);
} else {
st = s->streams[1];
}
dts = avio_rb32(s->pb);
st->codec->sample_rate = avio_rb32(s->pb);
@ -321,6 +333,7 @@ static int r3d_read_reda(AVFormatContext *s, AVPacket *pkt, Atom *atom)
static int r3d_read_packet(AVFormatContext *s, AVPacket *pkt)
{
R3DContext *r3d = s->priv_data;
Atom atom;
int err = 0;
@ -337,7 +350,7 @@ static int r3d_read_packet(AVFormatContext *s, AVPacket *pkt)
return 0;
break;
case MKTAG('R','E','D','A'):
if (s->nb_streams < 2)
if (!r3d->audio_channels)
return -1;
if (s->streams[1]->discard == AVDISCARD_ALL)
goto skip;