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Code Issues Releases Activity

added pcm formats

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Originally committed as revision 142 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard
2001-09-23 17:19:49 +00:00
parent f674bf7105
commit 5ed8fafcb6
5 changed files with 183 additions and 12 deletions
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161
libav/raw.c
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@@ -68,7 +68,6 @@ static int raw_read_header(AVFormatContext *s,
case CODEC_TYPE_AUDIO:
st->codec.sample_rate = ap->sample_rate;
st->codec.channels = ap->channels;
/* XXX: endianness */
break;
case CODEC_TYPE_VIDEO:
st->codec.frame_rate = ap->frame_rate;
@@ -84,6 +83,26 @@ static int raw_read_header(AVFormatContext *s,
return 0;
}
/* raw input */
static int pcm_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
AVStream *st;
st = malloc(sizeof(AVStream));
if (!st)
return -1;
s->nb_streams = 1;
s->streams[0] = st;
st->id = 0;
st->codec.codec_type = CODEC_TYPE_AUDIO;
st->codec.codec_id = s->format->audio_codec;
return 0;
}
#define RAW_PACKET_SIZE 1024
int raw_read_packet(AVFormatContext *s,
@@ -229,18 +248,148 @@ AVFormat mjpeg_format = {
raw_read_close,
};
AVFormat pcm_format = {
"pcm",
"pcm raw format",
/* pcm formats */
AVFormat pcm_s16le_format = {
"s16le",
"pcm signed 16 bit little endian format",
NULL,
#ifdef WORDS_BIGENDIAN
"",
#else
"sw",
CODEC_ID_PCM,
#endif
CODEC_ID_PCM_S16LE,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
raw_read_header,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_s16be_format = {
"s16be",
"pcm signed 16 bit big endian format",
NULL,
#ifdef WORDS_BIGENDIAN
"sw",
#else
"",
#endif
CODEC_ID_PCM_S16BE,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_u16le_format = {
"u16le",
"pcm unsigned 16 bit little endian format",
NULL,
#ifdef WORDS_BIGENDIAN
"",
#else
"uw",
#endif
CODEC_ID_PCM_U16LE,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_u16be_format = {
"u16be",
"pcm unsigned 16 bit big endian format",
NULL,
#ifdef WORDS_BIGENDIAN
"uw",
#else
"",
#endif
CODEC_ID_PCM_U16BE,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_s8_format = {
"s8",
"pcm signed 8 bit format",
NULL,
"sb",
CODEC_ID_PCM_S8,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_u8_format = {
"u8",
"pcm unsigned 8 bit format",
NULL,
"ub",
CODEC_ID_PCM_U8,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_mulaw_format = {
"mulaw",
"pcm mu law format",
NULL,
"ul",
CODEC_ID_PCM_MULAW,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};
AVFormat pcm_alaw_format = {
"alaw",
"pcm A law format",
NULL,
"al",
CODEC_ID_PCM_ALAW,
0,
raw_write_header,
raw_write_packet,
raw_write_trailer,
pcm_read_header,
raw_read_packet,
raw_read_close,
};