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aud: remove unneeded field, audio_stream_index from context 

There is only one stream, so it will always be index 0.
This also allows for removal of the private context.
This commit is contained in:
Justin Ruggles 2012-01-24 11:46:58 -05:00
parent be14a37066
commit b8dd555c63
1 changed files with 1 additions and 10 deletions
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11
libavformat/westwood_aud.c
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@ -41,10 +41,6 @@
#define AUD_CHUNK_PREAMBLE_SIZE 8
#define AUD_CHUNK_SIGNATURE 0x0000DEAF
typedef struct WsAudDemuxContext {
int audio_stream_index;
} WsAudDemuxContext;
static int wsaud_probe(AVProbeData *p)
{
int field;
@ -88,7 +84,6 @@ static int wsaud_probe(AVProbeData *p)
static int wsaud_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
WsAudDemuxContext *wsaud = s->priv_data;
AVIOContext *pb = s->pb;
AVStream *st;
unsigned char header[AUD_HEADER_SIZE];
@ -128,20 +123,17 @@ static int wsaud_read_header(AVFormatContext *s,
st->codec->channels = channels;
st->codec->sample_rate = sample_rate;
wsaud->audio_stream_index = st->index;
return 0;
}
static int wsaud_read_packet(AVFormatContext *s,
AVPacket *pkt)
{
WsAudDemuxContext *wsaud = s->priv_data;
AVIOContext *pb = s->pb;
unsigned char preamble[AUD_CHUNK_PREAMBLE_SIZE];
unsigned int chunk_size;
int ret = 0;
AVStream *st = s->streams[wsaud->audio_stream_index];
AVStream *st = s->streams[0];
if (avio_read(pb, preamble, AUD_CHUNK_PREAMBLE_SIZE) !=
AUD_CHUNK_PREAMBLE_SIZE)
@ -183,7 +175,6 @@ static int wsaud_read_packet(AVFormatContext *s,
AVInputFormat ff_wsaud_demuxer = {
.name = "wsaud",
.long_name = NULL_IF_CONFIG_SMALL("Westwood Studios audio format"),
.priv_data_size = sizeof(WsAudDemuxContext),
.read_probe = wsaud_probe,
.read_header = wsaud_read_header,
.read_packet = wsaud_read_packet,