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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5710 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
shatty 2003-12-18 17:46:19 +00:00
parent 141121d9e9
commit 34aaa850a8
3 changed files with 24 additions and 39 deletions
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55
src/add-ons/media/plugins/vorbis/vorbisCodecPlugin.cpp
View File

@ -16,22 +16,20 @@
vorbisDecoder::vorbisDecoder()
{
InitMP3(&fMpgLibPrivate);
vorbis_info_init(&fVorbisInfo);
fResidualBytes = 0;
fResidualBuffer = 0;
fDecodeBuffer = new uint8 [DECODE_BUFFER_SIZE];
fStartTime = 0;
fFrameSize = 0;
fFrameRate = 0;
fBitRate = 0;
fChannelCount = 0;
fOutputBufferSize = 0;
}
vorbisDecoder::~vorbisDecoder()
{
ExitMP3(&fMpgLibPrivate);
delete [] fDecodeBuffer;
}
@ -40,23 +38,18 @@ status_t
vorbisDecoder::Setup(media_format *ioEncodedFormat,
const void *infoBuffer, int32 infoSize)
{
// decode first chunk to initialize mpeg library
if (B_OK != DecodeNextChunk()) {
printf("vorbisDecoder::Setup failed, can't decode first chunk\n");
if (ioEncodedFormat->type != B_MEDIA_ENCODED_AUDIO) {
TRACE("vorbisDecoder::Setup not called with encoded video");
return B_ERROR;
}
// initialize fBitRate, fFrameRate and fChannelCount from mpg decode library values of first header
extern int tabsel_123[2][3][16];
extern long freqs[9];
fBitRate = tabsel_123[fMpgLibPrivate.fr.lsf][fMpgLibPrivate.fr.lay-1][fMpgLibPrivate.fr.bitrate_index] * 1000;
fFrameRate = freqs[fMpgLibPrivate.fr.sampling_frequency];
fChannelCount = fMpgLibPrivate.fr.stereo;
// save the extractor information for future reference
fOutput = ioEncodedFormat->u.encoded_audio.output;
fBitRate = ioEncodedFormat->u.encoded_audio.bit_rate;
fFrameSize = ioEncodedFormat->u.encoded_audio.frame_size;
printf("vorbisDecoder::Setup: channels %d, bitrate %d, framerate %d\n", fChannelCount, fBitRate, fFrameRate);
// put some more useful info into the media_format describing our input format
ioEncodedFormat->u.encoded_audio.bit_rate = fBitRate;
printf("vorbisDecoder::Setup: bitrate %d\n", fBitRate);
return B_OK;
}
@ -75,13 +68,15 @@ vorbisDecoder::NegotiateOutputFormat(media_format *ioDecodedFormat)
ioDecodedFormat->u.raw_audio.channel_count = fChannelCount;
ioDecodedFormat->u.raw_audio.format = media_raw_audio_format::B_AUDIO_SHORT; // XXX should support other formats, too
ioDecodedFormat->u.raw_audio.byte_order = B_MEDIA_HOST_ENDIAN; // XXX should support other endain, too
if (ioDecodedFormat->u.raw_audio.buffer_size < 512 || ioDecodedFormat->u.raw_audio.buffer_size > 65536)
ioDecodedFormat->u.raw_audio.buffer_size = BMediaRoster::Roster()->AudioBufferSizeFor(
fChannelCount,
ioDecodedFormat->u.raw_audio.format,
fFrameRate);
if (ioDecodedFormat->u.raw_audio.buffer_size < 512
|| ioDecodedFormat->u.raw_audio.buffer_size > 65536)
ioDecodedFormat->u.raw_audio.buffer_size
= BMediaRoster::Roster()->AudioBufferSizeFor(fChannelCount,
ioDecodedFormat->u.raw_audio.format,
fFrameRate);
if (ioDecodedFormat->u.raw_audio.channel_mask == 0)
ioDecodedFormat->u.raw_audio.channel_mask = (fChannelCount == 1) ? B_CHANNEL_LEFT : B_CHANNEL_LEFT | B_CHANNEL_RIGHT;
ioDecodedFormat->u.raw_audio.channel_mask
= (fChannelCount == 1) ? B_CHANNEL_LEFT : B_CHANNEL_LEFT | B_CHANNEL_RIGHT;
// setup rest of the needed variables
fFrameSize = (ioDecodedFormat->u.raw_audio.format & 0xf) * fChannelCount;
@ -175,12 +170,10 @@ vorbisDecoderPlugin::NewDecoder()
{
static BLocker locker;
static bool initdone = false;
locker.Lock();
BAutolock lock(locker);
if (!initdone) {
InitMpgLib();
initdone = true;
}
locker.Unlock();
return new vorbisDecoder;
}
@ -188,15 +181,7 @@ vorbisDecoderPlugin::NewDecoder()
status_t
vorbisDecoderPlugin::RegisterPlugin()
{
PublishDecoder("audiocodec/mpeg1layer1", "mp3", "MPEG 1 audio layer 1 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg1layer2", "mp3", "MPEG 1 audio layer 2 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg1layer3", "mp3", "MPEG 1 audio layer 3 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2layer1", "mp3", "MPEG 2 audio layer 1 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2layer2", "mp3", "MPEG 2 audio layer 2 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2layer3", "mp3", "MPEG 2 audio layer 3 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2.5layer1", "mp3", "MPEG 2.5 audio layer 1 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2.5layer2", "mp3", "MPEG 2.5 audio layer 2 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/mpeg2.5layer3", "mp3", "MPEG 2.5 audio layer 3 decoder, based on mpeg123 mpglib");
PublishDecoder("audiocodec/vorbis", "vorbis", "vorbis decoder, based on libvorbis");
return B_OK;
}

6
src/add-ons/media/plugins/vorbis/vorbisCodecPlugin.h
View File

@ -24,15 +24,15 @@ public:
status_t DecodeNextChunk();
private:
struct mpstr fMpgLibPrivate;
struct vorbis_dsp_state fVorbisDspState;
struct vorbis_info fVorbisInfo;
struct media_raw_video_format fOutput;
int32 fResidualBytes;
uint8 * fResidualBuffer;
uint8 * fDecodeBuffer;
bigtime_t fStartTime;
int fFrameSize;
int fFrameRate;
int fBitRate;
int fChannelCount;
int fOutputBufferSize;
};

2
src/add-ons/media/plugins/xvid_decoder/xvidDecoderPlugin.cpp
View File

@ -243,8 +243,8 @@ xvidDecoderPlugin::NewDecoder()
TRACE("xvidDecoder: xvid API_VERSION mismatch\n");
return NULL;
}
initdone = true;
}
initdone = true;
return new xvidDecoder;
}