static bool_t SpeexHeader(ogg* p, oggstream* s, const char* Data, int Length )
{
if (Length<80 && strncmp(Data,"Speex ",8)!=0)
return 0;
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_AUDIO;
s->Stream.Format.Format.Audio.Format = AUDIOFMT_SPEEX;
s->Stream.Format.Format.Audio.Channels = INT32LE(*(int32_t*)(Data+48));
s->Stream.Format.ByteRate = INT32LE(*(int32_t*)(Data+52))/8;
s->Stream.Format.Format.Audio.SampleRate = INT32LE(*(int32_t*)(Data+36));
s->MediaRateDen = TICKSPERSEC;
s->MediaRateNum = s->Stream.Format.Format.Audio.SampleRate;
s->Native = 1;
if (PacketFormatExtra(&s->Stream.Format,Length))
memcpy(s->Stream.Format.Extra,Data,s->Stream.Format.ExtraLength);
return 1;
}
static bool_t OGMHeader(ogg* p, oggstream* s, const char* Data, int Length )
{
int i;
if (Length<40 || (*Data & PACKET_TYPE_BITS) != PACKET_TYPE_HEADER)
return 0;
if (strncmp(Data+1, "Direct Show Samples embedded in Ogg", 35) == 0)
{
// old header
if (INT32LE(*(int32_t*)(Data+96)) == 0x05589F80)
{
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_VIDEO;
s->Stream.Format.Format.Video.Width = INT32LE(*(int32_t*)(Data+176));
s->Stream.Format.Format.Video.Height = INT32LE(*(int32_t*)(Data+180));
s->Stream.Format.Format.Video.Pixel.FourCC = INT32LE(*(int32_t*)(Data+68));
s->Stream.Format.Format.Video.Pixel.BitCount = INT16LE(*(int16_t*)(Data+182));
i = INT16LE(*(int16_t*)(Data+136)); // extrasize
if (i && PacketFormatExtra(&s->Stream.Format,i))
memcpy(s->Stream.Format.Extra,Data+142,s->Stream.Format.ExtraLength);
s->MediaRateDen = INT64LE(*(int32_t*)(Data+164))*TICKSPERSEC;
s->MediaRateNum = 10000000;
s->DefaultLen = 1;
FrameRate(&s->Stream.Format.PacketRate,s->MediaRateNum,s->MediaRateDen/TICKSPERSEC);
return 1;
}
if (INT32LE(*(int32_t*)(Data+96)) == 0x05589F81)
{
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_AUDIO;
s->Stream.Format.Format.Audio.Format = INT16LE(*(int16_t*)(Data+124));
s->Stream.Format.Format.Audio.Channels = INT16LE(*(int16_t*)(Data+126));
s->Stream.Format.Format.Audio.BlockAlign = INT16LE(*(int16_t*)(Data+136));
s->Stream.Format.Format.Audio.Bits = INT16LE(*(int16_t*)(Data+138));
s->Stream.Format.Format.Audio.SampleRate = INT32LE(*(int32_t*)(Data+128));
s->Stream.Format.ByteRate = INT32LE(*(int32_t*)(p+132));
i = INT16LE(*(int16_t*)(Data+136)); // extrasize
if (i && PacketFormatExtra(&s->Stream.Format,i))
memcpy(s->Stream.Format.Extra,Data+142,s->Stream.Format.ExtraLength);
s->MediaRateDen = TICKSPERSEC;
s->MediaRateNum = INT32LE(*(int32_t*)(Data+128));
s->DefaultLen = 1;
return 1;
}
}
else
if (Length >= sizeof(ogm_header)+1)
{
ogm_header Head;
memcpy(&Head,Data+1,sizeof(Head));
// new header
if (strncmp(Head.streamtype, MT_Video, strlen(MT_Video)) == 0)
{
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_VIDEO;
s->Stream.Format.Format.Video.Width = INT32LE(Head.format.video.width);
s->Stream.Format.Format.Video.Height = INT32LE(Head.format.video.height);
s->Stream.Format.Format.Video.Pixel.FourCC = INT32LE(*(int32_t*)Head.subtype);
s->Stream.Format.Format.Video.Pixel.BitCount = INT16LE(Head.bits_per_sample);
s->MediaRateDen = INT64LE(Head.time_unit)*TICKSPERSEC;
s->MediaRateNum = INT64LE(Head.samples_per_unit) * 10000000;
s->DefaultLen = INT32LE(Head.default_len);
FrameRate(&s->Stream.Format.PacketRate,s->MediaRateNum,s->MediaRateDen/TICKSPERSEC);
i = Length - (sizeof(ogm_header)+1);
if (i && PacketFormatExtra(&s->Stream.Format,i))
memcpy(s->Stream.Format.Extra,Data+1+sizeof(ogm_header),s->Stream.Format.ExtraLength);
return 1;
}
if (strncmp(Head.streamtype, MT_Audio, strlen(MT_Audio)) == 0)
{
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_AUDIO;
s->Stream.Format.Format.Audio.Format = 0;
for (i=0;i<4;++i)
if (Head.subtype[i])
s->Stream.Format.Format.Audio.Format = s->Stream.Format.Format.Audio.Format*16+Hex(Head.subtype[i]);
s->Stream.Format.Format.Audio.Channels = INT16LE(Head.format.audio.channels);
s->Stream.Format.Format.Audio.Bits = INT16LE(Head.bits_per_sample);
s->Stream.Format.Format.Audio.BlockAlign = INT16LE(Head.format.audio.blockalign);
s->Stream.Format.ByteRate = INT32LE(Head.format.audio.avgbytespersec);
s->Stream.Format.Format.Audio.SampleRate = (int)INT64LE(Head.samples_per_unit);
s->MediaRateDen = INT64LE(Head.time_unit)*TICKSPERSEC;
s->MediaRateNum = INT64LE(Head.samples_per_unit) * 10000000;
s->DefaultLen = INT32LE(Head.default_len);
i = Length - (sizeof(ogm_header)+1);
if (i && PacketFormatExtra(&s->Stream.Format,i))
memcpy(s->Stream.Format.Extra,Data+1+sizeof(ogm_header),s->Stream.Format.ExtraLength);
return 1;
}
if (strncmp(Data+1, MT_Text, strlen(MT_Text)) == 0)
{
PacketFormatClear(&s->Stream.Format);
s->Stream.Format.Type = PACKET_SUBTITLE;
s->Stream.Format.Format.Subtitle.FourCC = SUBTITLE_OEM; //???
s->MediaRateDen = INT64LE(Head.time_unit)*TICKSPERSEC;
s->MediaRateNum = INT64LE(Head.samples_per_unit) * 10000000;
s->DefaultLen = INT32LE(Head.default_len);
i = Length - (sizeof(ogm_header)+1);
if (i && PacketFormatExtra(&s->Stream.Format,i))
memcpy(s->Stream.Format.Extra,Data+1+sizeof(ogm_header),s->Stream.Format.ExtraLength);
return 1;
}
}
return 0;
}
static int ReadPacket(flv* p, format_reader* Reader, format_packet* Packet)
{
format_stream* s;
int i, type, size, TimeStamp, flags, is_audio;
int64_t next;
bool_t isNewStream = 0;
filepos_t startfilepos;
startfilepos = Reader->FilePos;
for (;;)
{
Reader->Skip(Reader, 4);//prvious type size
type = Reader->Read8(Reader);
size = ReadBE24(Reader);
TimeStamp = ReadBE24(Reader);
if (Reader->Eof(Reader))
{
return ERR_END_OF_FILE;
}
// Reserved
Reader->Skip(Reader, 4);
flags = 0;
if (size == 0)
continue;
next = size + Reader->FilePos;
if (type == FLV_TAG_TYPE_AUDIO)
{
is_audio = 1;
flags = Reader->Read8(Reader);
size--;
p->bHasA = 1;
}
else if (type == FLV_TAG_TYPE_VIDEO)
{
is_audio = 0;
flags = Reader->Read8(Reader);
size--;
p->bHasV = 1;
}
else if (type == FLV_TAG_TYPE_META && size > 13+1+4)
{
if(flv_read_metabody(p,Reader, next)<0)
{
Reader->Seek(Reader,(filepos_t)next,SEEK_SET);
}
continue;
}
else
{
// Skip the packet
Reader->Skip(Reader, size);
continue;
}
// Now find stream
s = NULL;
for (i=0;i<p->Format.StreamCount;++i)
{
if (p->Format.Streams[i]->Id == is_audio)
{
s = p->Format.Streams[i];
break;
}
}
if (!s)
{
s = Format_AddStream(&p->Format,sizeof(format_stream));
if (!s)
return ERR_OUT_OF_MEMORY;
s->Id = is_audio;
isNewStream = 1;
s->Format.PacketRate.Den = 24;
s->Format.PacketRate.Num = 1000;
}
break;
}
if(is_audio)
{
if (isNewStream)
{
int bInited = 0;
PacketFormatClear(&s->Format);
s->Format.Type = PACKET_AUDIO;
s->Format.Format.Audio.Channels = (flags&1)+1;
if((flags >> 4) == 5)
s->Format.Format.Audio.SampleRate = 8000;
else
s->Format.Format.Audio.SampleRate = (44100<<((flags>>2)&3))>>3;
switch(flags >> 4)
{/* 0: uncompressed 1: ADPCM 2: mp3 5: Nellymoser 8kHz mono 6: Nellymoser */
case FLV_CODECID_PCM:
s->Format.Format.Audio.Format = AUDIOFMT_PCM;
if (!(flags&2))
{
s->Format.Format.Audio.Bits = 8;
s->Format.Format.Audio.FracBits = 7;
bInited = 1;
}
break;
case FLV_CODECID_ADPCM:
s->Format.Format.Audio.Format = AUDIOFMT_ADPCM_SWF;
break;
case FLV_CODECID_MP3:
s->Format.Format.Audio.Format = AUDIOFMT_MP3;
break;
case FLV_CODECID_PCM_LE:
s->Format.Format.Audio.Format = AUDIOFMT_PCM;
if (!(flags&2))
{
s->Format.Format.Audio.Bits = 8;
s->Format.Format.Audio.FracBits = 7;
bInited = 1;
}
break;
case FLV_CODECID_NELLYMOSER_8KHZ_MONO:
s->Format.Format.Audio.SampleRate = 8000;
case FLV_CODECID_NELLYMOSER:
s->Format.Format.Audio.Format = AUDIOFMT_NELLYMOSER;
break;
case FLV_CODECID_AAC:
{
format_stream* s;
int type = Reader->Read8(Reader);
size--;
if(type == 0)
{
s = p->Format.Streams[p->Format.StreamCount-1];
if (PacketFormatExtra(&s->Format,size))
Reader->Read(Reader,s->Format.Extra,size);
}
s->Format.Format.Audio.Format = AUDIOFMT_AAC;
Format_PrepairStream(&p->Format, s);
}
return ERR_NONE;
case FLV_CODECID_SPEEX:
s->Format.Format.Audio.Format = AUDIOFMT_SPEEX;
s->Format.Format.Audio.SampleRate = 16000;
break;
default:
return ERR_NOT_SUPPORTED;
}
if(!bInited)
{
s->Format.Format.Audio.Bits = 16;
s->Format.Format.Audio.FracBits = 15;
}
s->Format.ByteRate = s->Format.Format.Audio.SampleRate * s->Format.Format.Audio.Channels * 2;
Format_PrepairStream(&p->Format,s);
}
}
