/*!
* \brief Create a new OGG/Speex filestream and set it up for reading.
* \param fs File that points to on disk storage of the OGG/Speex data.
* \return The new filestream.
*/
static int ogg_speex_open(struct ast_filestream *fs)
{
char *buffer;
size_t bytes;
struct speex_desc *s = (struct speex_desc *)fs->_private;
SpeexHeader *hdr = NULL;
int i, result, expected_rate;
expected_rate = ast_format_get_sample_rate(fs->fmt->format);
s->serialno = -1;
ogg_sync_init(&s->oy);
buffer = ogg_sync_buffer(&s->oy, BLOCK_SIZE);
bytes = fread(buffer, 1, BLOCK_SIZE, fs->f);
ogg_sync_wrote(&s->oy, bytes);
result = ogg_sync_pageout(&s->oy, &s->og);
if (result != 1) {
if(bytes < BLOCK_SIZE) {
ast_log(LOG_ERROR, "Run out of data...\n");
} else {
ast_log(LOG_ERROR, "Input does not appear to be an Ogg bitstream.\n");
}
ogg_sync_clear(&s->oy);
return -1;
}
ogg_stream_init(&s->os, ogg_page_serialno(&s->og));
if (ogg_stream_pagein(&s->os, &s->og) < 0) {
ast_log(LOG_ERROR, "Error reading first page of Ogg bitstream data.\n");
goto error;
}
if (read_packet(fs) < 0) {
ast_log(LOG_ERROR, "Error reading initial header packet.\n");
goto error;
}
hdr = speex_packet_to_header((char*)s->op.packet, s->op.bytes);
if (memcmp(hdr->speex_string, "Speex ", 8)) {
ast_log(LOG_ERROR, "OGG container does not contain Speex audio!\n");
goto error;
}
if (hdr->frames_per_packet != 1) {
ast_log(LOG_ERROR, "Only one frame-per-packet OGG/Speex files are currently supported!\n");
goto error;
}
if (hdr->nb_channels != 1) {
ast_log(LOG_ERROR, "Only monophonic OGG/Speex files are currently supported!\n");
goto error;
}
if (hdr->rate != expected_rate) {
ast_log(LOG_ERROR, "Unexpected sampling rate (%d != %d)!\n",
hdr->rate, expected_rate);
goto error;
}
/* this packet is the comment */
if (read_packet(fs) < 0) {
ast_log(LOG_ERROR, "Error reading comment packet.\n");
goto error;
}
for (i = 0; i < hdr->extra_headers; i++) {
if (read_packet(fs) < 0) {
ast_log(LOG_ERROR, "Error reading extra header packet %d.\n", i+1);
goto error;
}
}
speex_header_free(hdr);
return 0;
error:
if (hdr) {
speex_header_free(hdr);
}
ogg_stream_clear(&s->os);
ogg_sync_clear(&s->oy);
return -1;
}
ogg_codec_t *initial_speex_page (format_plugin_t *plugin, ogg_page *page)
{
ogg_state_t *ogg_info = plugin->_state;
ogg_codec_t *codec = acalloc (1, sizeof (ogg_codec_t));
ogg_packet packet;
SpeexHeader *header;
ogg_stream_init (&codec->os, ogg_page_serialno (page));
ogg_stream_pagein (&codec->os, page);
ogg_stream_packetout (&codec->os, &packet);
DEBUG0("checking for speex codec");
header = speex_packet_to_header ((char*)packet.packet, packet.bytes);
if (header == NULL)
{
ogg_stream_clear (&codec->os);
free (header);
free (codec);
return NULL;
}
INFO0 ("seen initial speex header");
codec->process_page = process_speex_page;
codec->codec_free = speex_codec_free;
codec->headers = 1;
format_ogg_attach_header (ogg_info, page);
free (header);
return codec;
}
static av_cold int libspeex_decode_init(AVCodecContext *avctx)
{
LibSpeexContext *s = avctx->priv_data;
const SpeexMode *mode;
// defaults in the case of a missing header
if (avctx->sample_rate <= 8000)
mode = &speex_nb_mode;
else if (avctx->sample_rate <= 16000)
mode = &speex_wb_mode;
else
mode = &speex_uwb_mode;
if (avctx->extradata_size >= 80)
s->header = speex_packet_to_header(avctx->extradata, avctx->extradata_size);
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if (s->header) {
avctx->sample_rate = s->header->rate;
avctx->channels = s->header->nb_channels;
s->frame_size = s->header->frame_size;
mode = speex_lib_get_mode(s->header->mode);
if (!mode) {
av_log(avctx, AV_LOG_ERROR, "Unknown Speex mode %d", s->header->mode);
return AVERROR_INVALIDDATA;
}
} else
av_log(avctx, AV_LOG_INFO, "Missing Speex header, assuming defaults.\n");
if (avctx->channels > 2) {
av_log(avctx, AV_LOG_ERROR, "Only stereo and mono are supported.\n");
return AVERROR(EINVAL);
}
speex_bits_init(&s->bits);
s->dec_state = speex_decoder_init(mode);
if (!s->dec_state) {
av_log(avctx, AV_LOG_ERROR, "Error initializing libspeex decoder.\n");
return -1;
}
if (!s->header) {
speex_decoder_ctl(s->dec_state, SPEEX_GET_FRAME_SIZE, &s->frame_size);
}
if (avctx->channels == 2) {
SpeexCallback callback;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &s->stereo;
s->stereo = (SpeexStereoState)SPEEX_STEREO_STATE_INIT;
speex_decoder_ctl(s->dec_state, SPEEX_SET_HANDLER, &callback);
}
avcodec_get_frame_defaults(&s->frame);
avctx->coded_frame = &s->frame;
return 0;
}
static void *process_header (struct spx_data *data)
{
void *st;
const SpeexMode *mode;
int modeID;
SpeexCallback callback;
int enhance = ENHANCE_AUDIO;
data->header = speex_packet_to_header ((char*)data->op.packet,
data->op.bytes);
if (!data->header) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: can't read header");
return NULL;
}
if (data->header->mode >= SPEEX_NB_MODES) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: Mode number %"PRId32
" does not exist in this version",
data->header->mode);
return NULL;
}
modeID = data->header->mode;
mode = speex_mode_list[modeID];
if (mode->bitstream_version < data->header->mode_bitstream_version) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: The file was encoded "
"with a newer version of Speex.");
return NULL;
}
if (mode->bitstream_version > data->header->mode_bitstream_version) {
decoder_error (&data->error, ERROR_FATAL, 0,
"Can't open speex file: The file was encoded "
"with an older version of Speex.");
return NULL;
}
st = speex_decoder_init (mode);
speex_decoder_ctl(st, SPEEX_SET_ENH, &enhance);
speex_decoder_ctl(st, SPEEX_GET_FRAME_SIZE, &data->frame_size);
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &data->stereo;
speex_decoder_ctl(st, SPEEX_SET_HANDLER, &callback);
speex_decoder_ctl(st, SPEEX_SET_SAMPLING_RATE, &data->header->rate);
return st;
}
ogg_codec_t *initial_speex_page (format_plugin_t *plugin, ogg_page *page)
{
ogg_state_t *ogg_info = plugin->_state;
ogg_codec_t *codec = calloc (1, sizeof (ogg_codec_t));
ogg_packet packet;
SpeexHeader *header;
ogg_stream_init (&codec->os, ogg_page_serialno (page));
ogg_stream_pagein (&codec->os, page);
ogg_stream_packetout (&codec->os, &packet);
/* Check for te first packet to be at least of the minimal size for a Speex header.
* The header size is 80 bytes as per specs. You can find the specs here:
* https://speex.org/docs/manual/speex-manual/node8.html#SECTION00830000000000000000
*
* speex_packet_to_header() will also check the header size for us. However
* that function generates noise on stderr in case the header is too short.
* This is dangerous as we may have closed stderr already and the handle may be use
* again for something else.
*/
if (packet.bytes < 80) {
return NULL;
}
ICECAST_LOG_DEBUG("checking for speex codec");
header = speex_packet_to_header ((char*)packet.packet, packet.bytes);
if (header == NULL)
{
ogg_stream_clear (&codec->os);
free (header);
free (codec);
return NULL;
}
ICECAST_LOG_INFO("seen initial speex header");
codec->process_page = process_speex_page;
codec->codec_free = speex_codec_free;
codec->headers = 1;
format_ogg_attach_header (ogg_info, page);
free (header);
return codec;
}
static int init(sh_audio_t *sh) {
context_t *ctx = calloc(1, sizeof(context_t));
const SpeexMode *spx_mode;
const SpeexStereoState st_st = SPEEX_STEREO_STATE_INIT; // hack
if (!sh->wf || sh->wf->cbSize < 80) {
mp_msg(MSGT_DECAUDIO, MSGL_FATAL, "Missing extradata!\n");
return 0;
}
ctx->hdr = speex_packet_to_header((char *)&sh->wf[1], sh->wf->cbSize);
if (ctx->hdr->nb_channels != 1 && ctx->hdr->nb_channels != 2) {
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Invalid number of channels (%i), "
"assuming mono\n", ctx->hdr->nb_channels);
ctx->hdr->nb_channels = 1;
}
if (ctx->hdr->frames_per_packet > MAX_FRAMES_PER_PACKET) {
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Invalid number of frames per packet (%i), "
"assuming 1\n", ctx->hdr->frames_per_packet);
ctx->hdr->frames_per_packet = 1;
}
switch (ctx->hdr->mode) {
case 0:
spx_mode = &speex_nb_mode; break;
case 1:
spx_mode = &speex_wb_mode; break;
case 2:
spx_mode = &speex_uwb_mode; break;
default:
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Unknown speex mode (%i)\n", ctx->hdr->mode);
spx_mode = &speex_nb_mode;
}
ctx->dec_context = speex_decoder_init(spx_mode);
speex_bits_init(&ctx->bits);
memcpy(&ctx->stereo, &st_st, sizeof(ctx->stereo)); // hack part 2
sh->channels = ctx->hdr->nb_channels;
sh->samplerate = ctx->hdr->rate;
sh->samplesize = 2;
sh->sample_format = AF_FORMAT_S16_NE;
sh->context = ctx;
return 1;
}
void SndSysSpeexSoundData::Initialize()
{
ogg_sync_state oy;
ogg_page og;
ogg_packet op;
ogg_stream_state os;
// Process enough to get the header.
ogg_sync_init(&oy);
oy.data = m_DataStore.data;
oy.storage = (int)m_DataStore.length;
ogg_sync_wrote(&oy, (long)m_DataStore.length);
ogg_sync_pageout(&oy, &og);
ogg_stream_init(&os, ogg_page_serialno(&og));
ogg_stream_pagein(&os, &og);
ogg_stream_packetout(&os, &op);
SpeexHeader* header = speex_packet_to_header((char*)op.packet, op.bytes);
m_SoundFormat.Channels = header->nb_channels;
m_SoundFormat.Freq = header->rate;
// Is there a better way to do this?
// Get number of packets (-1 as the second contains misc info).
int count = -1;
while(ogg_sync_pageout(&oy, &og)==1)
{
ogg_stream_pagein(&os, &og);
count += ogg_page_packets(&og);
}
m_FrameCount = header->frames_per_packet * count;
// Free memory.
speex_header_free(header);
ogg_stream_clear(&os);
// No need to call this again.
m_bInfoReady=true;
}
/* -- speex functions -- */
int _shout_open_speex(ogg_codec_t *codec, ogg_page *page)
{
speex_data_t *speex_data = calloc(1, sizeof(speex_data_t));
ogg_packet packet;
if (!speex_data)
return SHOUTERR_MALLOC;
ogg_stream_packetout(&codec->os, &packet);
if (!(speex_data->sh = speex_packet_to_header(packet.packet,packet.bytes))) {
free_speex_data(speex_data);
return SHOUTERR_UNSUPPORTED;
}
codec->codec_data = speex_data;
codec->read_page = read_speex_page;
codec->free_data = free_speex_data;
return SHOUTERR_SUCCESS;
}
static int init(sh_audio_t *sh) {
context_t *ctx = calloc(1, sizeof(context_t));
const uint8_t *hdr = (const uint8_t *)(sh->wf + 1);
const SpeexMode *spx_mode;
const SpeexStereoState st_st = SPEEX_STEREO_STATE_INIT; // hack
if (sh->wf && sh->wf->cbSize >= 80)
ctx->hdr = speex_packet_to_header((char *)&sh->wf[1], sh->wf->cbSize);
if (!ctx->hdr && sh->wf->cbSize == 0x72 && hdr[0] == 1 && hdr[1] == 0) {
// speex.acm format: raw SpeexHeader dump
ctx->hdr = calloc(1, sizeof(*ctx->hdr));
hdr += 2;
hdr += 8; // identifier string
hdr += 20; // version string
ctx->hdr->speex_version_id = read_le32(&hdr);
ctx->hdr->header_size = read_le32(&hdr);
ctx->hdr->rate = read_le32(&hdr);
ctx->hdr->mode = read_le32(&hdr);
ctx->hdr->mode_bitstream_version = read_le32(&hdr);
ctx->hdr->nb_channels = read_le32(&hdr);
ctx->hdr->bitrate = read_le32(&hdr);
ctx->hdr->frame_size = read_le32(&hdr);
ctx->hdr->vbr = read_le32(&hdr);
ctx->hdr->frames_per_packet = read_le32(&hdr);
}
if (!ctx->hdr) {
mp_msg(MSGT_DECAUDIO, MSGL_ERR, "Invalid or missing extradata! Assuming defaults.\n");
ctx->hdr = calloc(1, sizeof(*ctx->hdr));
ctx->hdr->frames_per_packet = 1;
ctx->hdr->mode = 0;
if (sh->wf) {
ctx->hdr->nb_channels = sh->wf->nChannels;
ctx->hdr->rate = sh->wf->nSamplesPerSec;
if (ctx->hdr->rate > 16000)
ctx->hdr->mode = 2;
else if (ctx->hdr->rate > 8000)
ctx->hdr->mode = 1;
}
}
if (ctx->hdr->nb_channels != 1 && ctx->hdr->nb_channels != 2) {
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Invalid number of channels (%i), "
"assuming mono\n", ctx->hdr->nb_channels);
ctx->hdr->nb_channels = 1;
}
if (ctx->hdr->frames_per_packet > MAX_FRAMES_PER_PACKET) {
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Invalid number of frames per packet (%i), "
"assuming 1\n", ctx->hdr->frames_per_packet);
ctx->hdr->frames_per_packet = 1;
}
switch (ctx->hdr->mode) {
case 0:
spx_mode = &speex_nb_mode; break;
case 1:
spx_mode = &speex_wb_mode; break;
case 2:
spx_mode = &speex_uwb_mode; break;
default:
mp_msg(MSGT_DECAUDIO, MSGL_WARN, "Unknown speex mode (%i)\n", ctx->hdr->mode);
spx_mode = &speex_nb_mode;
}
ctx->dec_context = speex_decoder_init(spx_mode);
speex_bits_init(&ctx->bits);
memcpy(&ctx->stereo, &st_st, sizeof(ctx->stereo)); // hack part 2
sh->channels = ctx->hdr->nb_channels;
sh->samplerate = ctx->hdr->rate;
sh->samplesize = 2;
sh->sample_format = AF_FORMAT_S16_NE;
sh->context = ctx;
return 1;
}
/*****************************************************************************
* ProcessInitialHeader: processes the inital Speex header packet.
*****************************************************************************/
static int ProcessInitialHeader( decoder_t *p_dec, ogg_packet *p_oggpacket )
{
decoder_sys_t *p_sys = p_dec->p_sys;
void *p_state;
SpeexHeader *p_header;
const SpeexMode *p_mode;
SpeexCallback callback;
p_sys->p_header = p_header =
speex_packet_to_header( (char *)p_oggpacket->packet,
p_oggpacket->bytes );
if( !p_header )
{
msg_Err( p_dec, "cannot read Speex header" );
return VLC_EGENERIC;
}
if( p_header->mode >= SPEEX_NB_MODES || p_header->mode < 0 )
{
msg_Err( p_dec, "mode number %d does not (yet/any longer) exist in "
"this version of libspeex.", p_header->mode );
return VLC_EGENERIC;
}
p_mode = speex_mode_list[p_header->mode];
if( p_mode == NULL )
return VLC_EGENERIC;
if( p_header->speex_version_id > 1 )
{
msg_Err( p_dec, "this file was encoded with Speex bit-stream "
"version %d which is not supported by this decoder.",
p_header->speex_version_id );
return VLC_EGENERIC;
}
if( p_mode->bitstream_version < p_header->mode_bitstream_version )
{
msg_Err( p_dec, "file encoded with a newer version of Speex." );
return VLC_EGENERIC;
}
if( p_mode->bitstream_version > p_header->mode_bitstream_version )
{
msg_Err( p_dec, "file encoded with an older version of Speex." );
return VLC_EGENERIC;
}
msg_Dbg( p_dec, "Speex %d Hz audio using %s mode %s%s",
p_header->rate, p_mode->modeName,
( p_header->nb_channels == 1 ) ? " (mono" : " (stereo",
p_header->vbr ? ", VBR)" : ")" );
/* Take care of speex decoder init */
speex_bits_init( &p_sys->bits );
p_sys->p_state = p_state = speex_decoder_init( p_mode );
if( !p_state )
{
msg_Err( p_dec, "decoder initialization failed" );
return VLC_EGENERIC;
}
if( p_header->nb_channels == 2 )
{
SpeexStereoState stereo = SPEEX_STEREO_STATE_INIT;
p_sys->stereo = stereo;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &p_sys->stereo;
speex_decoder_ctl( p_state, SPEEX_SET_HANDLER, &callback );
}
if( p_header->nb_channels <= 0 ||
p_header->nb_channels > 5 )
{
msg_Err( p_dec, "invalid number of channels (not between 1 and 5): %i",
p_header->nb_channels );
return VLC_EGENERIC;
}
/* Setup the format */
p_dec->fmt_out.audio.i_physical_channels =
p_dec->fmt_out.audio.i_original_channels =
pi_channels_maps[p_header->nb_channels];
p_dec->fmt_out.audio.i_channels = p_header->nb_channels;
p_dec->fmt_out.audio.i_rate = p_header->rate;
date_Init( &p_sys->end_date, p_header->rate, 1 );
return VLC_SUCCESS;
}
static void *process_header(ogg_packet *op, spx_int32_t enh_enabled, spx_int32_t *frame_size, int *granule_frame_size, spx_int32_t *rate, int *nframes, int forceMode, int *channels, SpeexStereoState *stereo, int *extra_headers, int quiet)
{
void *st;
const SpeexMode *mode;
SpeexHeader *header;
int modeID;
SpeexCallback callback;
header = speex_packet_to_header((char*)op->packet, op->bytes);
if (!header)
{
WriteDebugLog("Cannot read header");
//fprintf (stderr, "Cannot read header\n");
return NULL;
}
if (header->mode >= SPEEX_NB_MODES || header->mode<0)
{
WriteDebugLog("Mode number %d does not (yet/any longer) exist in this version");
//fprintf (stderr, "Mode number %d does not (yet/any longer) exist in this version\n",
// header->mode);
free(header);
return NULL;
}
modeID = header->mode;
if (forceMode!=-1)
modeID = forceMode;
mode = speex_lib_get_mode (modeID);
if (header->speex_version_id > 1)
{
char Error[256] = {0};
sprintf(Error,"This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", header->speex_version_id);
WriteDebugLog(Error);
//fprintf (stderr, "This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", header->speex_version_id);
free(header);
return NULL;
}
if (mode->bitstream_version < header->mode_bitstream_version)
{
WriteDebugLog("The file was encoded with a newer version of Speex. You need to upgrade in order to play it.");
//fprintf (stderr, "The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n");
free(header);
return NULL;
}
if (mode->bitstream_version > header->mode_bitstream_version)
{
WriteDebugLog("The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.");
//fprintf (stderr, "The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n");
free(header);
return NULL;
}
st = speex_decoder_init(mode);
if (!st)
{
WriteDebugLog("Decoder initialization failed.");
//fprintf (stderr, "Decoder initialization failed.\n");
free(header);
return NULL;
}
speex_decoder_ctl(st, SPEEX_SET_ENH, &enh_enabled);
speex_decoder_ctl(st, SPEEX_GET_FRAME_SIZE, frame_size);
*granule_frame_size = *frame_size;
if (!*rate)
*rate = header->rate;
/* Adjust rate if --force-* options are used */
if (forceMode!=-1)
{
if (header->mode < forceMode)
{
*rate <<= (forceMode - header->mode);
*granule_frame_size >>= (forceMode - header->mode);
}
if (header->mode > forceMode)
{
*rate >>= (header->mode - forceMode);
*granule_frame_size <<= (header->mode - forceMode);
}
static GstFlowReturn
gst_speex_dec_parse_header (GstSpeexDec * dec, GstBuffer * buf)
{
GstCaps *caps;
/* get the header */
dec->header = speex_packet_to_header ((char *) GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf));
if (!dec->header)
goto no_header;
if (dec->header->mode >= SPEEX_NB_MODES || dec->header->mode < 0)
goto mode_too_old;
dec->mode = speex_lib_get_mode (dec->header->mode);
/* initialize the decoder */
dec->state = speex_decoder_init (dec->mode);
if (!dec->state)
goto init_failed;
speex_decoder_ctl (dec->state, SPEEX_SET_ENH, &dec->enh);
speex_decoder_ctl (dec->state, SPEEX_GET_FRAME_SIZE, &dec->frame_size);
if (dec->header->nb_channels != 1) {
dec->stereo = speex_stereo_state_init ();
dec->callback.callback_id = SPEEX_INBAND_STEREO;
dec->callback.func = speex_std_stereo_request_handler;
dec->callback.data = dec->stereo;
speex_decoder_ctl (dec->state, SPEEX_SET_HANDLER, &dec->callback);
}
speex_decoder_ctl (dec->state, SPEEX_SET_SAMPLING_RATE, &dec->header->rate);
dec->frame_duration = gst_util_uint64_scale_int (dec->frame_size,
GST_SECOND, dec->header->rate);
speex_bits_init (&dec->bits);
/* set caps */
caps = gst_caps_new_simple ("audio/x-raw-int",
"rate", G_TYPE_INT, dec->header->rate,
"channels", G_TYPE_INT, dec->header->nb_channels,
"signed", G_TYPE_BOOLEAN, TRUE,
"endianness", G_TYPE_INT, G_BYTE_ORDER,
"width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, NULL);
if (!gst_pad_set_caps (GST_AUDIO_DECODER_SRC_PAD (dec), caps))
goto nego_failed;
gst_caps_unref (caps);
return GST_FLOW_OK;
/* ERRORS */
no_header:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't read header"));
return GST_FLOW_ERROR;
}
mode_too_old:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL),
("Mode number %d does not (yet/any longer) exist in this version",
dec->header->mode));
return GST_FLOW_ERROR;
}
init_failed:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't initialize decoder"));
return GST_FLOW_ERROR;
}
nego_failed:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't negotiate format"));
gst_caps_unref (caps);
return GST_FLOW_NOT_NEGOTIATED;
}
}
static GstFlowReturn
gst_speex_dec_parse_header (GstSpeexDec * dec, GstBuffer * buf)
{
SpeexHeader *header;
GstMapInfo map;
GstAudioInfo info;
static const GstAudioChannelPosition chan_pos[2][2] = {
{GST_AUDIO_CHANNEL_POSITION_MONO},
{GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT,
GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT}
};
/* get the header */
gst_buffer_map (buf, &map, GST_MAP_READ);
header = speex_packet_to_header ((gchar *) map.data, map.size);
gst_buffer_unmap (buf, &map);
if (!header)
goto no_header;
if (dec->header) {
GST_DEBUG_OBJECT (dec, "Replacing speex-header, resetting state");
gst_speex_dec_reset (dec);
}
dec->header = header;
if (dec->header->mode >= SPEEX_NB_MODES || dec->header->mode < 0)
goto mode_too_old;
dec->mode = speex_lib_get_mode (dec->header->mode);
/* initialize the decoder */
dec->state = speex_decoder_init (dec->mode);
if (!dec->state)
goto init_failed;
speex_decoder_ctl (dec->state, SPEEX_SET_ENH, &dec->enh);
speex_decoder_ctl (dec->state, SPEEX_GET_FRAME_SIZE, &dec->frame_size);
if (dec->header->nb_channels != 1) {
dec->stereo = speex_stereo_state_init ();
dec->callback.callback_id = SPEEX_INBAND_STEREO;
dec->callback.func = speex_std_stereo_request_handler;
dec->callback.data = dec->stereo;
speex_decoder_ctl (dec->state, SPEEX_SET_HANDLER, &dec->callback);
}
speex_decoder_ctl (dec->state, SPEEX_SET_SAMPLING_RATE, &dec->header->rate);
dec->frame_duration = gst_util_uint64_scale_int (dec->frame_size,
GST_SECOND, dec->header->rate);
speex_bits_init (&dec->bits);
/* set caps */
gst_audio_info_init (&info);
gst_audio_info_set_format (&info,
GST_AUDIO_FORMAT_S16,
dec->header->rate,
dec->header->nb_channels, chan_pos[dec->header->nb_channels - 1]);
if (!gst_audio_decoder_set_output_format (GST_AUDIO_DECODER (dec), &info))
goto nego_failed;
return GST_FLOW_OK;
/* ERRORS */
no_header:
{
GST_INFO_OBJECT (dec, "couldn't read header");
return GST_FLOW_NO_HEADER;
}
mode_too_old:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL),
("Mode number %d does not (yet/any longer) exist in this version",
dec->header->mode));
return GST_FLOW_ERROR;
}
init_failed:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't initialize decoder"));
return GST_FLOW_ERROR;
}
nego_failed:
{
GST_ELEMENT_ERROR (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("couldn't negotiate format"));
return GST_FLOW_NOT_NEGOTIATED;
}
}
static void *
spx_header_read (SF_PRIVATE * psf, ogg_packet *op, spx_int32_t enh_enabled, int force_mode)
{ SPX_PRIVATE* spx = psf->codec_data ;
void *st ;
const SpeexMode *mode ;
SpeexHeader *tmp_header ;
int modeID ;
SpeexCallback callback ;
tmp_header = speex_packet_to_header ((char*) op->packet, op->bytes) ;
if (tmp_header == NULL)
{ psf_log_printf (psf, "Cannot read Speex header\n") ;
return NULL ;
} ;
memcpy (&spx->header, tmp_header, sizeof (spx->header)) ;
free (tmp_header) ;
tmp_header = NULL ;
if (spx->header.mode >= SPEEX_NB_MODES || spx->header.mode < 0)
{ psf_log_printf (psf, "Mode number %d does not (yet/any longer) exist in this version\n", spx->header.mode) ;
return NULL ;
} ;
modeID = spx->header.mode ;
if (force_mode != -1)
modeID = force_mode ;
mode = speex_lib_get_mode (modeID) ;
if (spx->header.speex_version_id > 1)
{ psf_log_printf (psf, "This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", spx->header.speex_version_id) ;
return NULL ;
} ;
if (mode->bitstream_version < spx->header.mode_bitstream_version)
{ psf_log_printf (psf, "The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n") ;
return NULL ;
} ;
if (mode->bitstream_version > spx->header.mode_bitstream_version)
{ psf_log_printf (psf, "The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n") ;
return NULL ;
} ;
st = speex_decoder_init (mode) ;
if (!st)
{ psf_log_printf (psf, "Decoder initialization failed.\n") ;
return NULL ;
} ;
speex_decoder_ctl (st, SPEEX_SET_ENH, &enh_enabled) ;
speex_decoder_ctl (st, SPEEX_GET_FRAME_SIZE, &spx->frame_size) ;
spx->granule_frame_size = spx->frame_size ;
if (!psf->sf.samplerate)
psf->sf.samplerate = spx->header.rate ;
/* Adjust rate if --force-* options are used */
if (force_mode != -1)
{ if (spx->header.mode < force_mode)
{ psf->sf.samplerate <<= (force_mode - spx->header.mode) ;
spx->granule_frame_size >>= (force_mode - spx->header.mode) ;
} ;
if (spx->header.mode > force_mode)
{ psf->sf.samplerate >>= (spx->header.mode - force_mode) ;
spx->granule_frame_size <<= (spx->header.mode - force_mode) ;
} ;
bool OggSpeexDecoder::Open(CFErrorRef *error)
{
if(IsOpen()) {
LOGGER_WARNING("org.sbooth.AudioEngine.AudioDecoder.OggSpeex", "Open() called on an AudioDecoder that is already open");
return true;
}
// Ensure the input source is open
if(!mInputSource->IsOpen() && !mInputSource->Open(error))
return false;
// Initialize Ogg data struct
ogg_sync_init(&mOggSyncState);
// Get the ogg buffer for writing
char *data = ogg_sync_buffer(&mOggSyncState, READ_SIZE_BYTES);
// Read bitstream from input file
ssize_t bytesRead = GetInputSource()->Read(data, READ_SIZE_BYTES);
if(-1 == bytesRead) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” could not be read."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Read error"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("Unable to read from the input file."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderInputOutputError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Tell the sync layer how many bytes were written to its internal buffer
int result = ogg_sync_wrote(&mOggSyncState, bytesRead);
if(-1 == result) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” does not appear to be an Ogg file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotRecognizedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Turn the data we wrote into an ogg page
result = ogg_sync_pageout(&mOggSyncState, &mOggPage);
if(1 != result) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” does not appear to be an Ogg file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotRecognizedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Initialize the stream and grab the serial number
ogg_stream_init(&mOggStreamState, ogg_page_serialno(&mOggPage));
// Get the first Ogg page
result = ogg_stream_pagein(&mOggStreamState, &mOggPage);
if(0 != result) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” does not appear to be an Ogg file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotRecognizedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Get the first packet (should be the header) from the page
ogg_packet op;
result = ogg_stream_packetout(&mOggStreamState, &op);
if(1 != result) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” does not appear to be an Ogg file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotRecognizedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
if(op.bytes >= 5 && !memcmp(op.packet, "Speex", 5))
mSpeexSerialNumber = mOggStreamState.serialno;
++mOggPacketCount;
// Convert the packet to the Speex header
SpeexHeader *header = speex_packet_to_header((char *)op.packet, static_cast<int>(op.bytes));
if(NULL == header) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The file “%@” does not appear to be an Ogg Speex file."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Not an Ogg Speex file"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotRecognizedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
else if(SPEEX_NB_MODES <= header->mode) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The Speex mode in the file “%@” is not supported."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Unsupported Ogg Speex file mode"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("This file may have been encoded with a newer version of Speex."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotSupportedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
speex_header_free(header), header = NULL;
ogg_sync_destroy(&mOggSyncState);
return false;
}
const SpeexMode *mode = speex_lib_get_mode(header->mode);
if(mode->bitstream_version != header->mode_bitstream_version) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFStringRef displayName = CreateDisplayNameForURL(mInputSource->GetURL());
CFStringRef errorString = CFStringCreateWithFormat(kCFAllocatorDefault,
NULL,
CFCopyLocalizedString(CFSTR("The Speex version in the file “%@” is not supported."), ""),
displayName);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
errorString);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedFailureReasonKey,
CFCopyLocalizedString(CFSTR("Unsupported Ogg Speex file version"), ""));
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedRecoverySuggestionKey,
CFCopyLocalizedString(CFSTR("This file was encoded with a different version of Speex."), ""));
CFRelease(errorString), errorString = NULL;
CFRelease(displayName), displayName = NULL;
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderFileFormatNotSupportedError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
speex_header_free(header), header = NULL;
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Initialize the decoder
mSpeexDecoder = speex_decoder_init(mode);
if(NULL== mSpeexDecoder) {
if(error) {
CFMutableDictionaryRef errorDictionary = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(errorDictionary,
kCFErrorLocalizedDescriptionKey,
CFCopyLocalizedString(CFSTR("Unable to initialize the Speex decoder."), ""));
// CFDictionarySetValue(errorDictionary,
// kCFErrorLocalizedFailureReasonKey,
// CFCopyLocalizedString(CFSTR("Unsupported Ogg Speex file version"), ""));
// CFDictionarySetValue(errorDictionary,
// kCFErrorLocalizedRecoverySuggestionKey,
// CFCopyLocalizedString(CFSTR("This file was encoded with a different version of Speex."), ""));
*error = CFErrorCreate(kCFAllocatorDefault,
AudioDecoderErrorDomain,
AudioDecoderInputOutputError,
errorDictionary);
CFRelease(errorDictionary), errorDictionary = NULL;
}
speex_header_free(header), header = NULL;
ogg_sync_destroy(&mOggSyncState);
return false;
}
speex_decoder_ctl(mSpeexDecoder, SPEEX_SET_SAMPLING_RATE, &header->rate);
mSpeexFramesPerOggPacket = (0 == header->frames_per_packet ? 1 : header->frames_per_packet);
mExtraSpeexHeaderCount = header->extra_headers;
// Initialize the speex bit-packing data structure
speex_bits_init(&mSpeexBits);
// Initialize the stereo mode
mSpeexStereoState = speex_stereo_state_init();
if(2 == header->nb_channels) {
SpeexCallback callback;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = mSpeexStereoState;
speex_decoder_ctl(mSpeexDecoder, SPEEX_SET_HANDLER, &callback);
}
// Canonical Core Audio format
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mBitsPerChannel = 8 * sizeof(float);
mFormat.mSampleRate = header->rate;
mFormat.mChannelsPerFrame = header->nb_channels;
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
// Set up the source format
mSourceFormat.mFormatID = 'SPEE';
mSourceFormat.mSampleRate = header->rate;
mSourceFormat.mChannelsPerFrame = header->nb_channels;
switch(header->nb_channels) {
case 1: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Mono); break;
case 2: mChannelLayout = CreateChannelLayoutWithTag(kAudioChannelLayoutTag_Stereo); break;
}
speex_header_free(header), header = NULL;
// Allocate the buffer list
spx_int32_t speexFrameSize = 0;
speex_decoder_ctl(mSpeexDecoder, SPEEX_GET_FRAME_SIZE, &speexFrameSize);
mBufferList = AllocateABL(mFormat, speexFrameSize);
if(NULL == mBufferList) {
if(error)
*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, NULL);
speex_header_free(header), header = NULL;
speex_stereo_state_destroy(mSpeexStereoState), mSpeexStereoState = NULL;
speex_decoder_destroy(mSpeexDecoder), mSpeexDecoder = NULL;
speex_bits_destroy(&mSpeexBits);
ogg_sync_destroy(&mOggSyncState);
return false;
}
for(UInt32 i = 0; i < mBufferList->mNumberBuffers; ++i)
mBufferList->mBuffers[i].mDataByteSize = 0;
mIsOpen = true;
return true;
}
static gboolean
xmms_speex_init (xmms_xform_t *xform)
{
gint pe;
xmms_config_property_t *val;
xmms_speex_data_t *data;
xmms_error_t error;
g_return_val_if_fail (xform, FALSE);
data = g_new0 (xmms_speex_data_t, 1);
g_return_val_if_fail (data, FALSE);
xmms_xform_private_data_set (xform, data);
ogg_sync_init (&data->sync_state);
speex_bits_init (&data->speex_bits);
/* Find the speex header */
while (42) {
gint ret;
data->ogg_data = ogg_sync_buffer (&data->sync_state, 1024);
ret = xmms_xform_read (xform, data->ogg_data, 1024, &error);
ogg_sync_wrote (&data->sync_state, ret);
if (ret <= 0) {
return FALSE;
}
if (ogg_sync_pageout (&data->sync_state, &data->ogg_page) == 1) {
break;
}
}
ogg_stream_init (&data->stream_state, ogg_page_serialno (&data->ogg_page));
if (ogg_stream_pagein (&data->stream_state, &data->ogg_page) < 0) {
return FALSE;
}
if (ogg_stream_packetout (&data->stream_state, &data->ogg_packet) != 1) {
return FALSE;
}
data->speexheader = speex_packet_to_header ((char *)data->ogg_packet.packet,
data->ogg_packet.bytes);
data->speex_state = speex_decoder_init (speex_mode_list[data->speexheader->mode]);
val = xmms_xform_config_lookup (xform, "perceptual_enhancer");
pe = xmms_config_property_get_int (val);
speex_decoder_ctl (data->speex_state, SPEEX_SET_ENH, &pe);
ogg_sync_pageout (&data->sync_state, &data->ogg_page);
ogg_stream_pagein (&data->stream_state, &data->ogg_page);
ogg_stream_packetout (&data->stream_state, &data->ogg_packet);
data->samples_buf = g_new (gint16,
data->speexheader->frames_per_packet *
data->speexheader->frame_size *
data->speexheader->nb_channels);
data->samples_start = data->samples_buf;
data->samples_count = 0;
xmms_speex_read_metadata (xform, data);
xmms_xform_outdata_type_add (xform,
XMMS_STREAM_TYPE_MIMETYPE,
"audio/pcm",
XMMS_STREAM_TYPE_FMT_FORMAT,
XMMS_SAMPLE_FORMAT_S16,
XMMS_STREAM_TYPE_FMT_CHANNELS,
data->speexheader->nb_channels,
XMMS_STREAM_TYPE_FMT_SAMPLERATE,
data->speexheader->rate,
XMMS_STREAM_TYPE_END);
return TRUE;
}
static int
read_ogg_packet(OGGZ * oggz, oggz_packet * zp, long serialno, void * user_data) {
ogg_packet * op = &zp->op;
decoder_t * dec = (decoder_t *)user_data;
speex_pdata_t * pd = (speex_pdata_t *)dec->pdata;
if (pd->exploring && (pd->packetno == 0)) {
/* Speex header */
int i;
int ptr = 0;
char speex_string[9];
int enh = 1;
SpeexHeader * header;
for (i = 0; i < 8; i++) {
speex_string[i] = op->packet[ptr++];
}
speex_string[i] = '\0';
if (strcmp(speex_string, "Speex ") != 0) {
printf("read_ogg_packet(): Not a Speex stream\n");
pd->error = 1;
return 0;
}
speex_bits_init(&(pd->bits));
header = speex_packet_to_header((char *)op->packet, op->bytes);
if (!header) {
printf("Cannot read Speex header\n");
pd->error = 1;
return 0;
}
pd->mode = speex_mode_list[header->mode];
if (pd->mode->bitstream_version > header->mode_bitstream_version) {
fprintf(stderr, "Unknown bitstream version! The file was encoded with an older version of Speex.\n"
"You need to downgrade Speex in order to play it.\n");
pd->error = 1;
return 0;
}
if (pd->mode->bitstream_version < header->mode_bitstream_version) {
fprintf(stderr, "Unknown bitstream version! The file was encoded with a newer version of Speex.\n"
"You need to upgrade Speex in order to play it.\n");
pd->error = 1;
return 0;
}
pd->sample_rate = header->rate;
pd->channels = header->nb_channels;
pd->vbr = header->vbr;
if (header->frames_per_packet != 0)
pd->nframes = header->frames_per_packet;
pd->decoder = speex_decoder_init(pd->mode);
speex_decoder_ctl(pd->decoder, SPEEX_GET_FRAME_SIZE, &(pd->frame_size));
speex_decoder_ctl(pd->decoder, SPEEX_SET_ENH, &enh);
} else if (pd->packetno >= 2) {
int j;
float output_frame[SPEEX_BUFSIZE];
pd->granulepos = op->granulepos;
if (!pd->exploring) {
speex_bits_read_from(&(pd->bits), (char *)op->packet, op->bytes);
for (j = 0; j < pd->nframes; j++) {
int k;
speex_decode(pd->decoder, &(pd->bits), output_frame);
for (k = 0; k < pd->frame_size * pd->channels; k++) {
output_frame[k] /= 32768.0f;
if (output_frame[k] > 1.0f) {
output_frame[k] = 1.0f;
} else if (output_frame[k] < -1.0f) {
output_frame[k] = -1.0f;
}
}
rb_write(pd->rb, (char *)output_frame,
pd->channels * pd->frame_size * sample_size);
}
}
}
++pd->packetno;
return 0;
}
bool SFB::Audio::OggSpeexDecoder::_Open(CFErrorRef *error)
{
// Initialize Ogg data struct
ogg_sync_init(&mOggSyncState);
// Get the ogg buffer for writing
char *data = ogg_sync_buffer(&mOggSyncState, READ_SIZE_BYTES);
// Read bitstream from input file
ssize_t bytesRead = (ssize_t)GetInputSource().Read(data, READ_SIZE_BYTES);
if(-1 == bytesRead) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” could not be read."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Read error"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("Unable to read from the input file."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Tell the sync layer how many bytes were written to its internal buffer
int result = ogg_sync_wrote(&mOggSyncState, bytesRead);
if(-1 == result) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Turn the data we wrote into an ogg page
result = ogg_sync_pageout(&mOggSyncState, &mOggPage);
if(1 != result) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Initialize the stream and grab the serial number
ogg_stream_init(&mOggStreamState, ogg_page_serialno(&mOggPage));
// Get the first Ogg page
result = ogg_stream_pagein(&mOggStreamState, &mOggPage);
if(0 != result) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Get the first packet (should be the header) from the page
ogg_packet op;
result = ogg_stream_packetout(&mOggStreamState, &op);
if(1 != result) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an Ogg file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
if(op.bytes >= 5 && !memcmp(op.packet, "Speex", 5))
mSpeexSerialNumber = mOggStreamState.serialno;
++mOggPacketCount;
// Convert the packet to the Speex header
SpeexHeader *header = speex_packet_to_header((char *)op.packet, (int)op.bytes);
if(nullptr == header) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The file “%@” is not a valid Ogg Speex file."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Not an Ogg Speex file"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("The file's extension may not match the file's type."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::FileFormatNotRecognizedError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
ogg_sync_destroy(&mOggSyncState);
return false;
}
else if(SPEEX_NB_MODES <= header->mode) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The Speex mode in the file “%@” is not supported."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Unsupported Ogg Speex file mode"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("This file may have been encoded with a newer version of Speex."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::FileFormatNotSupportedError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
speex_header_free(header);
header = nullptr;
ogg_sync_destroy(&mOggSyncState);
return false;
}
const SpeexMode *mode = speex_lib_get_mode(header->mode);
if(mode->bitstream_version != header->mode_bitstream_version) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("The Speex version in the file “%@” is not supported."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Unsupported Ogg Speex file version"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("This file was encoded with a different version of Speex."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::FileFormatNotSupportedError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
speex_header_free(header);
header = nullptr;
ogg_sync_destroy(&mOggSyncState);
return false;
}
// Initialize the decoder
mSpeexDecoder = speex_decoder_init(mode);
if(nullptr== mSpeexDecoder) {
if(error) {
SFB::CFString description(CFCopyLocalizedString(CFSTR("Unable to initialize the Speex decoder."), ""));
SFB::CFString failureReason(CFCopyLocalizedString(CFSTR("Error initializing Speex decoder"), ""));
SFB::CFString recoverySuggestion(CFCopyLocalizedString(CFSTR("An unknown error occurred."), ""));
*error = CreateErrorForURL(Decoder::ErrorDomain, Decoder::InputOutputError, description, mInputSource->GetURL(), failureReason, recoverySuggestion);
}
speex_header_free(header);
header = nullptr;
ogg_sync_destroy(&mOggSyncState);
return false;
}
speex_decoder_ctl(mSpeexDecoder, SPEEX_SET_SAMPLING_RATE, &header->rate);
mSpeexFramesPerOggPacket = (0 == header->frames_per_packet ? 1 : header->frames_per_packet);
mExtraSpeexHeaderCount = (UInt32)header->extra_headers;
// Initialize the speex bit-packing data structure
speex_bits_init(&mSpeexBits);
// Initialize the stereo mode
mSpeexStereoState = speex_stereo_state_init();
if(2 == header->nb_channels) {
SpeexCallback callback;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = mSpeexStereoState;
speex_decoder_ctl(mSpeexDecoder, SPEEX_SET_HANDLER, &callback);
}
// Canonical Core Audio format
mFormat.mFormatID = kAudioFormatLinearPCM;
mFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
mFormat.mBitsPerChannel = 8 * sizeof(float);
mFormat.mSampleRate = header->rate;
mFormat.mChannelsPerFrame = (UInt32)header->nb_channels;
mFormat.mBytesPerPacket = (mFormat.mBitsPerChannel / 8);
mFormat.mFramesPerPacket = 1;
mFormat.mBytesPerFrame = mFormat.mBytesPerPacket * mFormat.mFramesPerPacket;
mFormat.mReserved = 0;
// Set up the source format
mSourceFormat.mFormatID = 'SPEE';
mSourceFormat.mSampleRate = header->rate;
mSourceFormat.mChannelsPerFrame = (UInt32)header->nb_channels;
switch(header->nb_channels) {
case 1: mChannelLayout = ChannelLayout::ChannelLayoutWithTag(kAudioChannelLayoutTag_Mono); break;
case 2: mChannelLayout = ChannelLayout::ChannelLayoutWithTag(kAudioChannelLayoutTag_Stereo); break;
}
speex_header_free(header);
header = nullptr;
// Allocate the buffer list
spx_int32_t speexFrameSize = 0;
speex_decoder_ctl(mSpeexDecoder, SPEEX_GET_FRAME_SIZE, &speexFrameSize);
if(!mBufferList.Allocate(mFormat, (UInt32)speexFrameSize)) {
if(error)
*error = CFErrorCreate(kCFAllocatorDefault, kCFErrorDomainPOSIX, ENOMEM, nullptr);
speex_stereo_state_destroy(mSpeexStereoState);
mSpeexStereoState = nullptr;
speex_decoder_destroy(mSpeexDecoder);
mSpeexDecoder = nullptr;
speex_bits_destroy(&mSpeexBits);
ogg_sync_destroy(&mOggSyncState);
return false;
}
for(UInt32 i = 0; i < mBufferList->mNumberBuffers; ++i)
mBufferList->mBuffers[i].mDataByteSize = 0;
return true;
}
static av_cold int libspeex_decode_init(AVCodecContext *avctx)
{
LibSpeexContext *s = avctx->priv_data;
const SpeexMode *mode;
SpeexHeader *header = NULL;
int spx_mode;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
if (avctx->extradata && avctx->extradata_size >= 80) {
header = speex_packet_to_header(avctx->extradata,
avctx->extradata_size);
if (!header)
av_log(avctx, AV_LOG_WARNING, "Invalid Speex header\n");
}
if (avctx->codec_tag == MKTAG('S', 'P', 'X', 'N')) {
if (!avctx->extradata || avctx->extradata && avctx->extradata_size < 47) {
av_log(avctx, AV_LOG_ERROR, "Missing or invalid extradata.\n");
return AVERROR_INVALIDDATA;
}
if (avctx->extradata[37] != 10) {
av_log(avctx, AV_LOG_ERROR, "Unsupported quality mode.\n");
return AVERROR_PATCHWELCOME;
}
spx_mode = 0;
} else if (header) {
avctx->sample_rate = header->rate;
avctx->channels = header->nb_channels;
spx_mode = header->mode;
speex_header_free(header);
} else {
switch (avctx->sample_rate) {
case 8000: spx_mode = 0; break;
case 16000: spx_mode = 1; break;
case 32000: spx_mode = 2; break;
default:
/* libspeex can handle any mode if initialized as ultra-wideband */
av_log(avctx, AV_LOG_WARNING, "Invalid sample rate: %d\n"
"Decoding as 32kHz ultra-wideband\n",
avctx->sample_rate);
spx_mode = 2;
}
}
mode = speex_lib_get_mode(spx_mode);
if (!mode) {
av_log(avctx, AV_LOG_ERROR, "Unknown Speex mode %d", spx_mode);
return AVERROR_INVALIDDATA;
}
s->frame_size = 160 << spx_mode;
if (!avctx->sample_rate)
avctx->sample_rate = 8000 << spx_mode;
if (avctx->channels < 1 || avctx->channels > 2) {
/* libspeex can handle mono or stereo if initialized as stereo */
av_log(avctx, AV_LOG_ERROR, "Invalid channel count: %d.\n"
"Decoding as stereo.\n", avctx->channels);
avctx->channels = 2;
}
avctx->channel_layout = avctx->channels == 2 ? AV_CH_LAYOUT_STEREO :
AV_CH_LAYOUT_MONO;
speex_bits_init(&s->bits);
s->dec_state = speex_decoder_init(mode);
if (!s->dec_state) {
av_log(avctx, AV_LOG_ERROR, "Error initializing libspeex decoder.\n");
return -1;
}
if (avctx->channels == 2) {
SpeexCallback callback;
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = &s->stereo;
s->stereo = (SpeexStereoState)SPEEX_STEREO_STATE_INIT;
speex_decoder_ctl(s->dec_state, SPEEX_SET_HANDLER, &callback);
}
return 0;
}
void SndSysSpeexSoundStream::AdvancePosition(size_t frame_delta)
{
if (m_bPaused || m_bPlaybackReadComplete || frame_delta==0)
return;
// Figure out how many bytes we need to fill for this advancement
size_t needed_bytes = frame_delta * (m_RenderFormat.Bits/8) * m_RenderFormat.Channels;
// If we need more space than is available in the whole cyclic buffer, then we already underbuffered, reduce to just 1 cycle full
if ((size_t)needed_bytes > m_pCyclicBuffer->GetLength())
needed_bytes=(size_t)(m_pCyclicBuffer->GetLength() & 0x7FFFFFFF);
// Free space in the cyclic buffer if necessary
if ((size_t)needed_bytes > m_pCyclicBuffer->GetFreeBytes())
m_pCyclicBuffer->AdvanceStartValue(needed_bytes - (size_t)(m_pCyclicBuffer->GetFreeBytes() & 0x7FFFFFFF));
// Fill in leftover decoded data if needed
if (m_PreparedDataBufferUsage > 0)
needed_bytes-=CopyBufferBytes(needed_bytes);
while (needed_bytes > 0)
{
if(newPage)
{
if(ogg_sync_pageout(&oy, &og) != 1)
{
// Mark as complete if not looping.
if (!m_bLooping)
{
m_bPlaybackReadComplete = true;
}
// Reset stream.
ResetPosition();
return;
}
if (!stream_init)
{
ogg_stream_init(&os, ogg_page_serialno(&og));
stream_init = true;
}
if (ogg_page_serialno(&og) != os.serialno)
{
ogg_stream_reset_serialno(&os, ogg_page_serialno(&og));
}
ogg_stream_pagein(&os, &og);
newPage = false;
}
if(ogg_stream_packetout(&os, &op) != 1)
{
newPage = true;
continue;
}
// First packets contain header data.
if(packet_count == 0)
{
if(header)
{
speex_header_free(header);
}
header = speex_packet_to_header((char*)op.packet, op.bytes);
// const_cast for version compatibility.
SpeexMode* mode = const_cast<SpeexMode*>(speex_lib_get_mode (header->mode));
state = speex_decoder_init(mode);
speex_decoder_ctl(state, SPEEX_SET_SAMPLING_RATE, &header->rate);
m_OutputFrequency=m_NewOutputFrequency;
// Create the pcm sample converter if it's not yet created
if (m_pPCMConverter == 0)
m_pPCMConverter = new PCMSampleConverter (
m_RenderFormat.Channels, m_RenderFormat.Bits,
m_RenderFormat.Freq);
// Calculate the size of one source sample
int source_sample_size = m_RenderFormat.Channels * m_RenderFormat.Bits;
// Calculate the needed buffer size for this conversion
int needed_buffer = (m_pPCMConverter->GetRequiredOutputBufferMultiple (
m_RenderFormat.Channels, m_RenderFormat.Bits, m_OutputFrequency) *
(4096 + source_sample_size))/1024;
// Allocate a new buffer.
if (m_PreparedDataBufferSize < needed_buffer)
{
delete[] m_pPreparedDataBuffer;
m_pPreparedDataBuffer = new char[needed_buffer];
m_PreparedDataBufferSize=needed_buffer;
}
}
if(packet_count++ < uint(2+header->extra_headers))
{
continue;
}
// Read and decode.
speex_bits_read_from(&bits, (char*)op.packet, op.bytes);
speex_decode_int(state, &bits, (int16*)m_pPreparedDataBuffer);
// Frame size is in shorts.
speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, &m_PreparedDataBufferUsage);
m_PreparedDataBufferUsage *= sizeof(short);
if (m_PreparedDataBufferUsage > 0)
needed_bytes -= CopyBufferBytes (needed_bytes);
}
}
static void *process_header(spx_ogg_packet *op,
int enh_enabled,
int *frame_size,
int *rate,
int *nframes,
int *channels,
SpeexStereoState *stereo,
int *extra_headers
)
{
void *st;
const SpeexMode *mode;
SpeexHeader *header;
int modeID;
SpeexCallback callback;
header = speex_packet_to_header((char*)op->packet, op->bytes);
if (!header){
DEBUGF ("Cannot read header\n");
return NULL;
}
if (header->mode >= SPEEX_NB_MODES){
DEBUGF ("Mode does not exist\n");
return NULL;
}
modeID = header->mode;
mode = speex_lib_get_mode(modeID);
if (header->speex_version_id > 1) {
DEBUGF("Undecodeable bitstream");
return NULL;
}
if (mode->bitstream_version < header->mode_bitstream_version){
DEBUGF("Undecodeable bitstream, newer bitstream");
return NULL;
}
if (mode->bitstream_version > header->mode_bitstream_version){
DEBUGF("Too old bitstream");
return NULL;
}
st = speex_decoder_init(mode);
if (!st){
DEBUGF("Decoder init failed");
return NULL;
}
speex_decoder_ctl(st, SPEEX_SET_ENH, &enh_enabled);
speex_decoder_ctl(st, SPEEX_GET_FRAME_SIZE, frame_size);
if (header->nb_channels!=1){
callback.callback_id = SPEEX_INBAND_STEREO;
callback.func = speex_std_stereo_request_handler;
callback.data = stereo;
speex_decoder_ctl(st, SPEEX_SET_HANDLER, &callback);
}
*channels = header->nb_channels;
if (!*rate)
*rate = header->rate;
speex_decoder_ctl(st, SPEEX_SET_SAMPLING_RATE, rate);
*nframes = header->frames_per_packet;
*extra_headers = header->extra_headers;
return st;
}
void *AudioStreamPlaybackSpeex::process_header(ogg_packet *op, int *frame_size, int *rate, int *nframes, int *channels, int *extra_headers) {
SpeexHeader *header;
int modeID;
header = speex_packet_to_header((char *)op->packet, op->bytes);
if (!header) {
OS::get_singleton()->printerr("Cannot read header\n");
return NULL;
}
if (header->mode >= SPEEX_NB_MODES) {
OS::get_singleton()->printerr("Mode number %d does not (yet/any longer) exist in this version\n",
header->mode);
return NULL;
}
modeID = header->mode;
const SpeexMode *mode = speex_lib_get_mode(modeID);
if (header->speex_version_id > 1) {
OS::get_singleton()->printerr("This file was encoded with Speex bit-stream version %d, which I don't know how to decode\n", header->speex_version_id);
return NULL;
}
if (mode->bitstream_version < header->mode_bitstream_version) {
OS::get_singleton()->printerr("The file was encoded with a newer version of Speex. You need to upgrade in order to play it.\n");
return NULL;
}
if (mode->bitstream_version > header->mode_bitstream_version) {
OS::get_singleton()->printerr("The file was encoded with an older version of Speex. You would need to downgrade the version in order to play it.\n");
return NULL;
}
void *state = speex_decoder_init(mode);
if (!state) {
OS::get_singleton()->printerr("Decoder initialization failed.\n");
return NULL;
}
//speex_decoder_ctl(state, SPEEX_SET_ENH, &enh_enabled);
speex_decoder_ctl(state, SPEEX_GET_FRAME_SIZE, frame_size);
if (!*rate)
*rate = header->rate;
speex_decoder_ctl(state, SPEEX_SET_SAMPLING_RATE, rate);
*nframes = header->frames_per_packet;
*channels = header->nb_channels;
if (*channels != 1) {
OS::get_singleton()->printerr("Only MONO speex streams supported\n");
return NULL;
}
*extra_headers = header->extra_headers;
speex_free(header);
return state;
}
