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Add Speex support to the Ogg muxer. 

Originally committed as revision 20220 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2009-10-13 01:46:19 +00:00
parent 24c6f152c4
commit 8746296818
2 changed files with 65 additions and 10 deletions
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2
libavformat/avformat.h
View File

@ -23,7 +23,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 52
#define LIBAVFORMAT_VERSION_MINOR 39
#define LIBAVFORMAT_VERSION_MICRO 0
#define LIBAVFORMAT_VERSION_MICRO 1
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \

73
libavformat/oggenc.c
View File

@ -83,10 +83,31 @@ static int ogg_write_page(AVFormatContext *s, const uint8_t *data, int size,
return size;
}
static uint8_t *ogg_write_vorbiscomment(int offset, int bitexact,
int *header_len)
{
const char *vendor = bitexact ? "ffmpeg" : LIBAVFORMAT_IDENT;
int size;
uint8_t *p, *p0;
size = offset + 4 + strlen(vendor) + 4;
p = av_mallocz(size);
if (!p)
return NULL;
p0 = p;
p += offset;
bytestream_put_le32(&p, strlen(vendor));
bytestream_put_buffer(&p, vendor, strlen(vendor));
bytestream_put_le32(&p, 0); // user comment list length
*header_len = size;
return p0;
}
static int ogg_build_flac_headers(AVCodecContext *avctx,
OGGStreamContext *oggstream, int bitexact)
{
const char *vendor = bitexact ? "ffmpeg" : LIBAVFORMAT_IDENT;
enum FLACExtradataFormat format;
uint8_t *streaminfo;
uint8_t *p;
@ -111,16 +132,40 @@ static int ogg_build_flac_headers(AVCodecContext *avctx,
bytestream_put_buffer(&p, streaminfo, FLAC_STREAMINFO_SIZE);
// second packet: VorbisComment
oggstream->header_len[1] = 1+3+4+strlen(vendor)+4;
oggstream->header[1] = av_mallocz(oggstream->header_len[1]);
p = oggstream->header[1];
p = ogg_write_vorbiscomment(4, bitexact, &oggstream->header_len[1]);
if (!p)
return AVERROR_NOMEM;
oggstream->header[1] = p;
bytestream_put_byte(&p, 0x84); // last metadata block and vorbis comment
bytestream_put_be24(&p, oggstream->header_len[1] - 4);
bytestream_put_le32(&p, strlen(vendor));
bytestream_put_buffer(&p, vendor, strlen(vendor));
bytestream_put_le32(&p, 0); // user comment list length
return 0;
}
#define SPEEX_HEADER_SIZE 80
static int ogg_build_speex_headers(AVCodecContext *avctx,
OGGStreamContext *oggstream, int bitexact)
{
uint8_t *p;
if (avctx->extradata_size < SPEEX_HEADER_SIZE)
return -1;
// first packet: Speex header
p = av_mallocz(SPEEX_HEADER_SIZE);
if (!p)
return AVERROR_NOMEM;
oggstream->header[0] = p;
oggstream->header_len[0] = SPEEX_HEADER_SIZE;
bytestream_put_buffer(&p, avctx->extradata, SPEEX_HEADER_SIZE);
AV_WL32(&oggstream->header[0][68], 0); // set extra_headers to 0
// second packet: VorbisComment
p = ogg_write_vorbiscomment(0, bitexact, &oggstream->header_len[1]);
if (!p)
return AVERROR_NOMEM;
oggstream->header[1] = p;
return 0;
}
@ -137,6 +182,7 @@ static int ogg_write_header(AVFormatContext *s)
av_set_pts_info(st, 64, st->codec->time_base.num, st->codec->time_base.den);
if (st->codec->codec_id != CODEC_ID_VORBIS &&
st->codec->codec_id != CODEC_ID_THEORA &&
st->codec->codec_id != CODEC_ID_SPEEX &&
st->codec->codec_id != CODEC_ID_FLAC) {
av_log(s, AV_LOG_ERROR, "Unsupported codec id in stream %d\n", i);
return -1;
@ -156,6 +202,14 @@ static int ogg_write_header(AVFormatContext *s)
av_freep(&st->priv_data);
return err;
}
} else if (st->codec->codec_id == CODEC_ID_SPEEX) {
int err = ogg_build_speex_headers(st->codec, oggstream,
st->codec->flags & CODEC_FLAG_BITEXACT);
if (err) {
av_log(s, AV_LOG_ERROR, "Error writing Speex headers\n");
av_freep(&st->priv_data);
return err;
}
} else {
if (ff_split_xiph_headers(st->codec->extradata, st->codec->extradata_size,
st->codec->codec_id == CODEC_ID_VORBIS ? 30 : 42,
@ -281,7 +335,8 @@ static int ogg_write_trailer(AVFormatContext *s)
for (i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[i];
OGGStreamContext *oggstream = st->priv_data;
if (st->codec->codec_id == CODEC_ID_FLAC) {
if (st->codec->codec_id == CODEC_ID_FLAC ||
st->codec->codec_id == CODEC_ID_SPEEX) {
av_free(oggstream->header[0]);
av_free(oggstream->header[1]);
}
@ -294,7 +349,7 @@ AVOutputFormat ogg_muxer = {
"ogg",
NULL_IF_CONFIG_SMALL("Ogg"),
"application/ogg",
"ogg,ogv",
"ogg,ogv,spx",
0,
CODEC_ID_FLAC,
CODEC_ID_THEORA,