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@@ -18,9 +18,70 @@
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#define DECODE_BUFFER_SIZE (32 * 1024)
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speexDecoder::speexDecoder()
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inline size_t
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AudioBufferSize(media_raw_audio_format * raf, bigtime_t buffer_duration = 50000 /* 50 ms */)
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{
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TRACE("speexDecoder::speexDecoder\n");
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return (raf->format & 0xf) * (raf->channel_count)
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* (size_t)((raf->frame_rate * buffer_duration) / 1000000.0);
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}
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/*
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* speex descriptions/formats
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*/
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static media_format_description
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speex_description()
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{
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media_format_description description;
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description.family = B_MISC_FORMAT_FAMILY;
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description.u.misc.file_format = 'OggS';
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description.u.misc.codec = 'Spee';
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return description;
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}
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static void
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init_speex_media_raw_audio_format(media_raw_audio_format * output)
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{
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output->format = media_raw_audio_format::B_AUDIO_FLOAT;
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output->byte_order = B_MEDIA_HOST_ENDIAN;
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}
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static media_format
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speex_encoded_media_format()
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{
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media_format format;
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format.type = B_MEDIA_ENCODED_AUDIO;
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format.user_data_type = B_CODEC_TYPE_INFO;
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strncpy((char*)format.user_data, "Spee", 4);
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format.u.encoded_audio.frame_size = sizeof(ogg_packet);
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init_speex_media_raw_audio_format(&format.u.encoded_audio.output);
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return format;
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}
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static media_format
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speex_decoded_media_format()
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{
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media_format format;
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format.type = B_MEDIA_RAW_AUDIO;
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init_speex_media_raw_audio_format(&format.u.raw_audio);
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return format;
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}
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/*
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* VorbisDecoder
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*/
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SpeexDecoder::SpeexDecoder()
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{
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TRACE("SpeexDecoder::SpeexDecoder\n");
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speex_bits_init(&fBits);
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fDecoderState = 0;
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fHeader = 0;
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@@ -32,9 +93,9 @@ speexDecoder::speexDecoder()
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}
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speexDecoder::~speexDecoder()
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SpeexDecoder::~SpeexDecoder()
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{
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TRACE("speexDecoder::~speexDecoder\n");
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TRACE("SpeexDecoder::~SpeexDecoder\n");
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// the fStereoState is destroyed by fDecoderState
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// delete fStereoState;
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speex_bits_destroy(&fBits);
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@@ -43,43 +104,40 @@ speexDecoder::~speexDecoder()
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void
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speexDecoder::GetCodecInfo(media_codec_info &info)
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SpeexDecoder::GetCodecInfo(media_codec_info &info)
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{
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strcpy(info.short_name, "speex");
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strcpy(info.pretty_name, "speex decoder, based on libspeex");
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strncpy(info.short_name, "speex", sizeof(info.short_name));
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strncpy(info.pretty_name, "speex decoder, by Andrew Bachmann, based on libspeex", sizeof(info.pretty_name));
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}
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status_t
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speexDecoder::Setup(media_format *inputFormat,
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SpeexDecoder::Setup(media_format *inputFormat,
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const void *infoBuffer, int32 infoSize)
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{
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if (inputFormat->type != B_MEDIA_ENCODED_AUDIO) {
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TRACE("speexDecoder::Setup not called with audio stream: not speex\n");
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return B_ERROR;
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TRACE("VorbisDecoder::Setup\n");
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if (!format_is_compatible(speex_encoded_media_format(),*inputFormat)) {
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return B_MEDIA_BAD_FORMAT;
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}
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if (inputFormat->u.encoded_audio.encoding != 'Spee') {
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TRACE("speexDecoder::Setup not called with 'Spee' stream: not speex\n");
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return B_ERROR;
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}
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if (inputFormat->MetaDataSize() != sizeof(std::vector<ogg_packet> *)) {
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TRACE("speexDecoder::Setup not called with ogg_packet<vector> meta data: not speex\n");
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// grab header packets from meta data
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if (inputFormat->MetaDataSize() != sizeof(std::vector<ogg_packet>)) {
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TRACE("SpeexDecoder::Setup not called with ogg_packet<vector> meta data: not speex\n");
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return B_ERROR;
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}
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std::vector<ogg_packet> * packets = (std::vector<ogg_packet> *)inputFormat->MetaData();
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if (packets->size() < 2) {
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TRACE("speexDecoder::Setup not called with at least two ogg_packets: not speex\n");
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TRACE("SpeexDecoder::Setup not called with at least two ogg_packets: not speex\n");
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return B_ERROR;
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}
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// parse header packet
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ogg_packet * packet = &(*packets)[0];
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fHeader = speex_packet_to_header((char*)packet->packet, packet->bytes);
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if (fHeader == NULL) {
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TRACE("speexDecoder::Setup failed in ogg_packet to speex_header conversion\n");
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TRACE("SpeexDecoder::Setup failed in ogg_packet to speex_header conversion\n");
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return B_ERROR;
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}
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if (packets->size() != 2 + (unsigned)fHeader->extra_headers) {
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TRACE("speexDecoder::Setup not called with all the extra headers\n");
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TRACE("SpeexDecoder::Setup not called with all the extra headers\n");
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delete fHeader;
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fHeader = 0;
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return B_ERROR;
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@@ -122,25 +180,26 @@ speexDecoder::Setup(media_format *inputFormat,
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// sanity checks
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#ifdef STRICT_SPEEX
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if (header->speex_version_id > 1) {
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TRACE("speexDecoder::Setup failed: version id too new");
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TRACE("SpeexDecoder::Setup failed: version id too new");
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return B_ERROR;
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}
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#endif
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if (fHeader->mode >= SPEEX_NB_MODES) {
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TRACE("speexDecoder::Setup failed: unknown speex mode\n");
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TRACE("SpeexDecoder::Setup failed: unknown speex mode\n");
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return B_ERROR;
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}
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// setup from header
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SpeexMode * mode = speex_mode_list[fHeader->mode];
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#ifdef STRICT_SPEEX
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if (mode->bitstream_version != fHeader->mode_bitstream_version) {
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TRACE("speexDecoder::Setup failed: bitstream version mismatch");
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TRACE("SpeexDecoder::Setup failed: bitstream version mismatch");
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return B_ERROR;
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}
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#endif
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// initialize decoder
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fDecoderState = speex_decoder_init(mode);
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if (fDecoderState == NULL) {
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TRACE("speexDecoder::Setup failed to initialize the decoder state");
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TRACE("SpeexDecoder::Setup failed to initialize the decoder state");
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return B_ERROR;
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}
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if (SpeexSettings::PerceptualPostFilter()) {
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@@ -159,83 +218,63 @@ speexDecoder::Setup(media_format *inputFormat,
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}
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speex_decoder_ctl(fDecoderState, SPEEX_SET_SAMPLING_RATE, &fHeader->rate);
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// fill out the encoding format
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CopyInfoToEncodedFormat(inputFormat);
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return B_OK;
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media_format requested_format = speex_decoded_media_format();
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((media_raw_audio_format)requested_format.u.raw_audio) = inputFormat->u.encoded_audio.output;
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return NegotiateOutputFormat(&requested_format);
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}
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void speexDecoder::CopyInfoToEncodedFormat(media_format * format) {
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format->type = B_MEDIA_ENCODED_AUDIO;
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format->user_data_type = B_CODEC_TYPE_INFO;
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strncpy((char*)format->user_data,"Spee",4);
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format->u.encoded_audio.encoding
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= (media_encoded_audio_format::audio_encoding)'Spee';
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if (fHeader->bitrate > 0) {
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format->u.encoded_audio.bit_rate = fHeader->bitrate;
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} else {
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speex_decoder_ctl(fDecoderState, SPEEX_GET_BITRATE, &fHeader->bitrate);
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format->u.encoded_audio.bit_rate = fHeader->bitrate;
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}
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if (fHeader->nb_channels == 1) {
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format->u.encoded_audio.multi_info.channel_mask = B_CHANNEL_LEFT;
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} else {
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format->u.encoded_audio.multi_info.channel_mask = B_CHANNEL_LEFT | B_CHANNEL_RIGHT;
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}
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CopyInfoToDecodedFormat(&format->u.encoded_audio.output);
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format->u.encoded_audio.frame_size = sizeof(ogg_packet);
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}
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inline size_t
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AudioBufferSize(media_raw_audio_format * raf, bigtime_t buffer_duration = 50000 /* 50 ms */)
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status_t
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SpeexDecoder::NegotiateOutputFormat(media_format *ioDecodedFormat)
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{
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return (raf->format & 0xf) * (raf->channel_count)
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* (size_t)((raf->frame_rate * buffer_duration) / 1000000.0);
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}
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void speexDecoder::CopyInfoToDecodedFormat(media_raw_audio_format * raf) {
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raf->frame_rate = (float)fHeader->rate; // XXX int32->float ??
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raf->channel_count = fHeader->nb_channels;
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raf->format = media_raw_audio_format::B_AUDIO_FLOAT; // XXX verify: support others?
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raf->byte_order = B_MEDIA_HOST_ENDIAN; // XXX should support other endain, too
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int buffer_size = raf->buffer_size;
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if (buffer_size < 512 || buffer_size > 65536) {
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buffer_size = AudioBufferSize(raf);
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TRACE("SpeexDecoder::NegotiateOutputFormat\n");
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// BMediaTrack::DecodedFormat
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// Pass in ioFormat the format that you want (with wildcards
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// as applicable). The codec will find and return in ioFormat
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// its best matching format.
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//
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// BMediaDecoder::SetOutputFormat
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// sets the format the decoder should output. On return,
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// the outputFormat is changed to match the actual format
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// that will be output; this can be different if you
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// specified any wildcards.
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//
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media_format format = speex_decoded_media_format();
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format.u.raw_audio.frame_rate = (float)fHeader->rate;
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format.u.raw_audio.channel_count = fHeader->nb_channels;
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format.u.raw_audio.channel_mask = B_CHANNEL_LEFT | (fHeader->nb_channels != 1 ? B_CHANNEL_RIGHT : 0);
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int buffer_size = ioDecodedFormat->u.raw_audio.buffer_size;
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if (buffer_size < 512) {
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buffer_size = AudioBufferSize(&format.u.raw_audio);
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}
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int output_length = fHeader->frame_size * fHeader->nb_channels * (raf->format & 0xf);
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int output_length = fHeader->frame_size * fHeader->nb_channels
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* (format.u.raw_audio.format & 0xf);
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buffer_size = ((buffer_size - 1) / output_length + 1) * output_length;
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raf->buffer_size = buffer_size;
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format.u.raw_audio.buffer_size = buffer_size;
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if (!format_is_compatible(format,*ioDecodedFormat)) {
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#ifdef NegotiateOutputFormat_AS_BEBOOK_SPEC
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return B_ERROR;
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#else
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// Be R5 behavior: never fail (?) => nuke the input format
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*ioDecodedFormat = format;
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#endif
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}
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ioDecodedFormat->SpecializeTo(&format);
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// setup output variables
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fFrameSize = (raf->format & 0xf) * raf->channel_count;
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fOutputBufferSize = buffer_size;
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fFrameSize = (ioDecodedFormat->u.raw_audio.format & 0xf) *
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(ioDecodedFormat->u.raw_audio.channel_count);
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fOutputBufferSize = ioDecodedFormat->u.raw_audio.buffer_size;
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fSpeexOutputLength = output_length;
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}
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status_t
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speexDecoder::NegotiateOutputFormat(media_format *ioDecodedFormat)
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{
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TRACE("speexDecoder::NegotiateOutputFormat\n");
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// BeBook says: The codec will find and return in ioFormat its best matching format
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// => This means, we never return an error, and always change the format values
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// that we don't support to something more applicable
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ioDecodedFormat->type = B_MEDIA_RAW_AUDIO;
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CopyInfoToDecodedFormat(&ioDecodedFormat->u.raw_audio);
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// add the media_mult_audio_format fields
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if (ioDecodedFormat->u.raw_audio.channel_mask == 0) {
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if (fHeader->nb_channels == 1) {
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ioDecodedFormat->u.raw_audio.channel_mask = B_CHANNEL_LEFT;
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} else {
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ioDecodedFormat->u.raw_audio.channel_mask = B_CHANNEL_LEFT | B_CHANNEL_RIGHT;
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}
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}
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return B_OK;
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}
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status_t
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speexDecoder::Seek(uint32 seekTo,
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SpeexDecoder::Seek(uint32 seekTo,
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int64 seekFrame, int64 *frame,
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bigtime_t seekTime, bigtime_t *time)
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{
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TRACE("speexDecoder::Seek\n");
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TRACE("SpeexDecoder::Seek\n");
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// int ignore = 0;
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// speex_decoder_ctl(fDecoderState, SPEEX_RESET_STATE, &ignore);
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return B_OK;
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@@ -243,17 +282,17 @@ speexDecoder::Seek(uint32 seekTo,
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status_t
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speexDecoder::Decode(void *buffer, int64 *frameCount,
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SpeexDecoder::Decode(void *buffer, int64 *frameCount,
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media_header *mediaHeader, media_decode_info *info /* = 0 */)
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{
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// TRACE("speexDecoder::Decode\n");
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// TRACE("SpeexDecoder::Decode\n");
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uint8 * out_buffer = static_cast<uint8 *>(buffer);
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int32 out_bytes_needed = fOutputBufferSize;
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mediaHeader->start_time = fStartTime;
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//TRACE("speexDecoder: Decoding start time %.6f\n", fStartTime / 1000000.0);
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//TRACE("SpeexDecoder: Decoding start time %.6f\n", fStartTime / 1000000.0);
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// debugger("speexDecoder::Decode");
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// debugger("SpeexDecoder::Decode");
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while (out_bytes_needed >= fSpeexOutputLength) {
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// get a new packet
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void *chunkBuffer;
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@@ -264,11 +303,11 @@ speexDecoder::Decode(void *buffer, int64 *frameCount,
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goto done;
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}
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if (status != B_OK) {
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TRACE("speexDecoder::Decode: GetNextChunk failed\n");
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TRACE("SpeexDecoder::Decode: GetNextChunk failed\n");
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return status;
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}
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if (chunkSize != sizeof(ogg_packet)) {
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TRACE("speexDecoder::Decode: chunk not ogg_packet-sized\n");
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TRACE("SpeexDecoder::Decode: chunk not ogg_packet-sized\n");
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return B_ERROR;
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}
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ogg_packet * packet = static_cast<ogg_packet*>(chunkBuffer);
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@@ -279,11 +318,11 @@ speexDecoder::Decode(void *buffer, int64 *frameCount,
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break;
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}
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if (ret == -2) {
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TRACE("speexDecoder::Decode: corrupted stream?\n");
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TRACE("SpeexDecoder::Decode: corrupted stream?\n");
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break;
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}
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if (speex_bits_remaining(&fBits) < 0) {
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TRACE("speexDecoder::Decode: decoding overflow: corrupted stream?\n");
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TRACE("SpeexDecoder::Decode: decoding overflow: corrupted stream?\n");
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break;
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}
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if (fHeader->nb_channels == 2) {
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@@ -297,7 +336,7 @@ speexDecoder::Decode(void *buffer, int64 *frameCount,
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done:
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uint samples = (out_buffer - (uint8*)buffer) / fFrameSize;
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fStartTime += (1000000LL * samples) / fHeader->rate;
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//TRACE("speexDecoder: fStartTime inc'd to %.6f\n", fStartTime / 1000000.0);
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//TRACE("SpeexDecoder: fStartTime inc'd to %.6f\n", fStartTime / 1000000.0);
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*frameCount = (fOutputBufferSize - out_bytes_needed) / fFrameSize;
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if (out_buffer != buffer) {
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@@ -306,8 +345,14 @@ done:
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return B_LAST_BUFFER_ERROR;
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}
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/*
|
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|
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* SpeexDecoderPlugin
|
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*/
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Decoder *
|
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speexDecoderPlugin::NewDecoder()
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|
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SpeexDecoderPlugin::NewDecoder()
|
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|
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{
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|
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static BLocker locker;
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static bool initdone = false;
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|
@@ -315,28 +360,31 @@ speexDecoderPlugin::NewDecoder()
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if (!initdone) {
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|
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initdone = true;
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|
|
}
|
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|
|
return new speexDecoder;
|
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|
|
return new SpeexDecoder;
|
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|
|
}
|
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|
|
status_t
|
|
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|
|
speexDecoderPlugin::RegisterDecoder()
|
|
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|
|
SpeexDecoderPlugin::RegisterDecoder()
|
|
|
|
|
{
|
|
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|
|
// ToDo: what about B_OGG_FORMAT_FAMILY?
|
|
|
|
|
media_format_description description;
|
|
|
|
|
description.family = B_MISC_FORMAT_FAMILY;
|
|
|
|
|
description.u.misc.file_format = 'ogg ';
|
|
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|
|
description.u.misc.codec = 'spee';
|
|
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|
|
media_format_description description = speex_description();
|
|
|
|
|
media_format format = speex_encoded_media_format();
|
|
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|
|
media_format format;
|
|
|
|
|
format.type = B_MEDIA_ENCODED_AUDIO;
|
|
|
|
|
format.u.encoded_audio = media_encoded_audio_format::wildcard;
|
|
|
|
|
|
|
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|
|
return BMediaFormats().MakeFormatFor(&description, 1, &format);
|
|
|
|
|
BMediaFormats formats;
|
|
|
|
|
status_t result = formats.InitCheck();
|
|
|
|
|
if (result != B_OK) {
|
|
|
|
|
return result;
|
|
|
|
|
}
|
|
|
|
|
return formats.MakeFormatFor(&description, 1, &format);
|
|
|
|
|
}
|
|
|
|
|
|
|
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|
|
|
|
|
|
/*
|
|
|
|
|
* instantiate_plugin
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
MediaPlugin *instantiate_plugin()
|
|
|
|
|
{
|
|
|
|
|
return new speexDecoderPlugin;
|
|
|
|
|
return new SpeexDecoderPlugin;
|
|
|
|
|
}
|
|
|
|
|