/*****************************************************************************
* OpenFilter:
*****************************************************************************/
static int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
int i_ret;
if( p_filter->fmt_in.i_codec != VLC_CODEC_A52 ||
p_filter->fmt_out.audio.i_format == VLC_CODEC_SPDIFB ||
p_filter->fmt_out.audio.i_format == VLC_CODEC_SPDIFL )
{
return VLC_EGENERIC;
}
p_filter->fmt_out.audio.i_format =
#ifdef LIBA52_FIXED
p_filter->fmt_out.i_codec = VLC_CODEC_FI32;
#else
p_filter->fmt_out.i_codec = VLC_CODEC_FL32;
#endif
p_filter->fmt_out.audio.i_bitspersample =
aout_BitsPerSample( p_filter->fmt_out.i_codec );
/* Allocate the memory needed to store the module's structure */
p_filter->p_sys = p_sys = malloc( sizeof(filter_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
i_ret = Open( VLC_OBJECT(p_filter), p_sys,
p_filter->fmt_in.audio, p_filter->fmt_out.audio );
p_filter->pf_audio_filter = Convert;
p_filter->fmt_out.audio.i_rate = p_filter->fmt_in.audio.i_rate;
return i_ret;
}
/*****************************************************************************
* aout_FormatPrepare : compute the number of bytes per frame & frame length
*****************************************************************************/
void aout_FormatPrepare( audio_sample_format_t * p_format )
{
p_format->i_channels = aout_FormatNbChannels( p_format );
p_format->i_bitspersample = aout_BitsPerSample( p_format->i_format );
if( p_format->i_bitspersample > 0 )
{
p_format->i_bytes_per_frame = ( p_format->i_bitspersample / 8 )
* aout_FormatNbChannels( p_format );
p_format->i_frame_length = 1;
}
}
/*****************************************************************************
* OpenDecoder :
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys;
if( p_dec->fmt_in.i_codec != VLC_CODEC_MPGA &&
p_dec->fmt_in.i_codec != VLC_CODEC_MP3 )
return VLC_EGENERIC;
/* Initialize libmpg123 */
if( InitMPG123() != MPG123_OK )
return VLC_EGENERIC;
/* Allocate the memory needed to store the module's structure */
p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
p_sys->p_out = NULL;
date_Set( &p_sys->end_date, VLC_TS_INVALID );
if( MPG123Open( p_dec ) )
goto error;
p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
p_dec->fmt_out.audio.i_rate = 0; /* So end_date gets initialized */
p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
p_dec->pf_decode = DecodeBlock;
p_dec->pf_flush = Flush;
msg_Dbg( p_this, "%4.4s->%4.4s, bits per sample: %i",
(char *)&p_dec->fmt_in.i_codec,
(char *)&p_dec->fmt_out.i_codec,
aout_BitsPerSample( p_dec->fmt_out.i_codec ) );
return VLC_SUCCESS;
error:
ExitMPG123();
free( p_sys );
return VLC_EGENERIC;
}
/*****************************************************************************
* OpenFilter:
*****************************************************************************/
static int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
if( p_filter->fmt_in.i_codec != VLC_CODEC_MPGA &&
p_filter->fmt_in.i_codec != VLC_FOURCC('m','p','g','3') )
return VLC_EGENERIC;
if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
return VLC_EGENERIC;
/* Allocate the memory needed to store the module's structure */
p_sys = p_filter->p_sys = malloc( sizeof(filter_sys_t) );
if( p_sys == NULL )
return -1;
p_sys->i_reject_count = 0;
p_filter->pf_audio_filter = Convert;
/* Initialize libmad */
mad_stream_init( &p_sys->mad_stream );
mad_frame_init( &p_sys->mad_frame );
mad_synth_init( &p_sys->mad_synth );
mad_stream_options( &p_sys->mad_stream, MAD_OPTION_IGNORECRC );
p_filter->fmt_out.i_codec = HAVE_FPU ? VLC_CODEC_FL32 : VLC_CODEC_FI32;
p_filter->fmt_out.audio.i_format = p_filter->fmt_out.i_codec;
p_filter->fmt_out.audio.i_bitspersample =
aout_BitsPerSample( p_filter->fmt_out.i_codec );
msg_Dbg( p_this, "%4.4s->%4.4s, bits per sample: %i",
(char *)&p_filter->fmt_in.i_codec,
(char *)&p_filter->fmt_out.i_codec,
p_filter->fmt_in.audio.i_bitspersample );
return 0;
}
static sout_stream_id_t *AddAudio( sout_stream_t *p_stream, es_format_t *p_fmt )
{
char* psz_tmp;
sout_stream_id_t* id;
int i_bits_per_sample = aout_BitsPerSample( p_fmt->i_codec );
if( !i_bits_per_sample )
{
msg_Err( p_stream, "Smem does only support raw audio format" );
return NULL;
}
id = (sout_stream_id_t *)calloc( 1, sizeof( sout_stream_id_t ) ); // sunqueen modify
if( !id )
return NULL;
psz_tmp = var_GetString( p_stream, SOUT_PREFIX_AUDIO "data" );
id->p_data = (void *)( intptr_t )atoll( psz_tmp );
free( psz_tmp );
id->format = p_fmt;
id->format->audio.i_bitspersample = i_bits_per_sample;
return id;
}
int transcode_audio_new( sout_stream_t *p_stream,
sout_stream_id_t *id )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
es_format_t fmt_last;
/*
* Open decoder
*/
/* Initialization of decoder structures */
id->p_decoder->fmt_out = id->p_decoder->fmt_in;
id->p_decoder->fmt_out.i_extra = 0;
id->p_decoder->fmt_out.p_extra = 0;
id->p_decoder->pf_decode_audio = NULL;
id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
/* id->p_decoder->p_cfg = p_sys->p_audio_cfg; */
id->p_decoder->p_module =
module_need( id->p_decoder, "decoder", "$codec", false );
if( !id->p_decoder->p_module )
{
msg_Err( p_stream, "cannot find audio decoder" );
return VLC_EGENERIC;
}
id->p_decoder->fmt_out.audio.i_bitspersample =
aout_BitsPerSample( id->p_decoder->fmt_out.i_codec );
fmt_last = id->p_decoder->fmt_out;
/* Fix AAC SBR changing number of channels and sampling rate */
if( !(id->p_decoder->fmt_in.i_codec == VLC_CODEC_MP4A &&
fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate &&
fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels) )
fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
/*
* Open encoder
*/
/* Initialization of encoder format structures */
es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
id->p_decoder->fmt_out.i_codec );
id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
id->p_encoder->fmt_in.audio.i_physical_channels =
id->p_encoder->fmt_out.audio.i_physical_channels;
id->p_encoder->fmt_in.audio.i_original_channels =
id->p_encoder->fmt_out.audio.i_original_channels;
id->p_encoder->fmt_in.audio.i_channels =
id->p_encoder->fmt_out.audio.i_channels;
id->p_encoder->fmt_in.audio.i_bitspersample =
aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
id->p_encoder->p_module =
module_need( id->p_encoder, "encoder", p_sys->psz_aenc, true );
if( !id->p_encoder->p_module )
{
msg_Err( p_stream, "cannot find audio encoder (module:%s fourcc:%4.4s)",
p_sys->psz_aenc ? p_sys->psz_aenc : "any",
(char *)&p_sys->i_acodec );
module_unneed( id->p_decoder, id->p_decoder->p_module );
id->p_decoder->p_module = NULL;
return VLC_EGENERIC;
}
id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
id->p_encoder->fmt_in.audio.i_bitspersample =
aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
/* Load user specified audio filters */
if( p_sys->psz_af )
{
es_format_t fmt_fl32 = fmt_last;
fmt_fl32.i_codec =
fmt_fl32.audio.i_format = VLC_CODEC_FL32;
id->p_uf_chain = filter_chain_New( p_stream, "audio filter", false,
transcode_audio_filter_allocation_init, NULL, NULL );
filter_chain_Reset( id->p_uf_chain, &fmt_last, &fmt_fl32 );
if( transcode_audio_filter_chain_build( p_stream, id->p_uf_chain,
&fmt_fl32, &fmt_last ) )
{
transcode_audio_close( id );
return VLC_EGENERIC;
}
fmt_last = fmt_fl32;
if( filter_chain_AppendFromString( id->p_uf_chain, p_sys->psz_af ) > 0 )
fmt_last = *filter_chain_GetFmtOut( id->p_uf_chain );
}
/* Load conversion filters */
id->p_f_chain = filter_chain_New( p_stream, "audio filter", true,
transcode_audio_filter_allocation_init, NULL, NULL );
filter_chain_Reset( id->p_f_chain, &fmt_last, &id->p_encoder->fmt_in );
if( transcode_audio_filter_chain_build( p_stream, id->p_f_chain,
&id->p_encoder->fmt_in, &fmt_last ) )
{
transcode_audio_close( id );
return VLC_EGENERIC;
}
fmt_last = id->p_encoder->fmt_in;
/* */
id->p_encoder->fmt_out.i_codec =
vlc_fourcc_GetCodec( AUDIO_ES, id->p_encoder->fmt_out.i_codec );
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenDecoder :
*****************************************************************************/
static int OpenDecoder( vlc_object_t *p_this )
{
decoder_t *p_dec = (decoder_t *)p_this;
decoder_sys_t *p_sys;
if( p_dec->fmt_in.i_codec != VLC_CODEC_MPGA &&
p_dec->fmt_in.i_codec != VLC_CODEC_MP3 )
return VLC_EGENERIC;
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
/* Initialize libmpg123 */
if( InitMPG123() != MPG123_OK )
return VLC_EGENERIC;
/* Allocate the memory needed to store the module's structure */
p_sys = p_dec->p_sys = malloc( sizeof(decoder_sys_t) );
if( p_sys == NULL )
return VLC_ENOMEM;
/* Create our mpg123 handle */
if( ( p_sys->p_handle = mpg123_new( NULL, NULL ) ) == NULL )
goto error;
/* Open a new bitstream */
if( mpg123_open_feed( p_sys->p_handle ) != MPG123_OK )
{
msg_Err( p_this, "mpg123 error: can't open feed" );
goto error;
}
/* Disable resync stream after error */
mpg123_param( p_sys->p_handle, MPG123_ADD_FLAGS, MPG123_NO_RESYNC, 0 );
/* Setup output format */
mpg123_format_none( p_sys->p_handle );
if( MPG123_OK != mpg123_format( p_sys->p_handle,
p_dec->fmt_in.audio.i_rate,
MPG123_MONO | MPG123_STEREO,
MPG123_ENC_FLOAT_32 ) )
{
msg_Err( p_this, "mpg123 error: %s",
mpg123_strerror( p_sys->p_handle ) );
mpg123_close( p_sys->p_handle );
goto error;
}
p_dec->fmt_out.audio.i_rate = 0; /* So end_date gets initialized */
p_dec->fmt_out.audio.i_format = p_dec->fmt_out.i_codec;
p_dec->pf_decode_audio = DecodeBlock;
msg_Dbg( p_this, "%4.4s->%4.4s, bits per sample: %i",
(char *)&p_dec->fmt_in.i_codec,
(char *)&p_dec->fmt_out.i_codec,
aout_BitsPerSample( p_dec->fmt_out.i_codec ) );
return VLC_SUCCESS;
error:
mpg123_delete( p_sys->p_handle );
ExitMPG123();
free( p_sys );
return VLC_EGENERIC;
}
static int Open(vlc_object_t *obj)
{
demux_t *demux = (demux_t *)obj;
demux_sys_t *sys = malloc(sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
sys->context = vlc_pa_connect(obj, &sys->mainloop);
if (sys->context == NULL) {
free(sys);
return VLC_EGENERIC;
}
sys->stream = NULL;
sys->es = NULL;
sys->discontinuity = false;
sys->caching = INT64_C(1000) * var_InheritInteger(obj, "live-caching");
demux->p_sys = sys;
/* Stream parameters */
struct pa_sample_spec ss;
ss.format = PA_SAMPLE_S16NE;
ss.rate = 48000;
ss.channels = 2;
assert(pa_sample_spec_valid(&ss));
struct pa_channel_map map;
map.channels = 2;
map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
assert(pa_channel_map_valid(&map));
const pa_stream_flags_t flags = PA_STREAM_INTERPOLATE_TIMING
| PA_STREAM_AUTO_TIMING_UPDATE
| PA_STREAM_ADJUST_LATENCY
| PA_STREAM_FIX_FORMAT
| PA_STREAM_FIX_RATE
/*| PA_STREAM_FIX_CHANNELS*/;
const char *dev = NULL;
if (demux->psz_location != NULL && demux->psz_location[0] != '\0')
dev = demux->psz_location;
struct pa_buffer_attr attr = {
.maxlength = -1,
.fragsize = pa_usec_to_bytes(sys->caching, &ss) / 2,
};
es_format_t fmt;
/* Create record stream */
pa_stream *s;
pa_operation *op;
pa_threaded_mainloop_lock(sys->mainloop);
s = pa_stream_new(sys->context, "audio stream", &ss, &map);
if (s == NULL)
goto error;
sys->stream = s;
pa_stream_set_state_callback(s, stream_state_cb, sys->mainloop);
pa_stream_set_read_callback(s, stream_read_cb, demux);
pa_stream_set_buffer_attr_callback(s, stream_buffer_attr_cb, demux);
pa_stream_set_moved_callback(s, stream_moved_cb, demux);
pa_stream_set_overflow_callback(s, stream_overflow_cb, demux);
pa_stream_set_started_callback(s, stream_started_cb, demux);
pa_stream_set_suspended_callback(s, stream_suspended_cb, demux);
pa_stream_set_underflow_callback(s, stream_underflow_cb, demux);
if (pa_stream_connect_record(s, dev, &attr, flags) < 0
|| stream_wait(s, sys->mainloop)) {
vlc_pa_error(obj, "cannot connect record stream", sys->context);
goto error;
}
/* The ES should be initialized before stream_read_cb(), but how? */
const struct pa_sample_spec *pss = pa_stream_get_sample_spec(s);
if ((unsigned)pss->format >= sizeof (fourccs) / sizeof (fourccs[0])) {
msg_Err(obj, "unknown PulseAudio sample format %u",
(unsigned)pss->format);
goto error;
}
vlc_fourcc_t format = fourccs[pss->format];
if (format == 0) { /* FIXME: should renegotiate something else */
msg_Err(obj, "unsupported PulseAudio sample format %u",
(unsigned)pss->format);
goto error;
}
es_format_Init(&fmt, AUDIO_ES, format);
fmt.audio.i_physical_channels = fmt.audio.i_original_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
fmt.audio.i_channels = ss.channels;
fmt.audio.i_rate = pss->rate;
fmt.audio.i_bitspersample = aout_BitsPerSample(format);
fmt.audio.i_blockalign = fmt.audio.i_bitspersample * ss.channels / 8;
fmt.i_bitrate = fmt.audio.i_bitspersample * ss.channels * pss->rate;
sys->framesize = fmt.audio.i_blockalign;
sys->es = es_out_Add (demux->out, &fmt);
/* Update the buffer attributes according to actual format */
attr.fragsize = pa_usec_to_bytes(sys->caching, pss) / 2;
op = pa_stream_set_buffer_attr(s, &attr, stream_success_cb, sys->mainloop);
if (likely(op != NULL)) {
while (pa_operation_get_state(op) == PA_OPERATION_RUNNING)
pa_threaded_mainloop_wait(sys->mainloop);
pa_operation_unref(op);
}
stream_buffer_attr_cb(s, demux);
pa_threaded_mainloop_unlock(sys->mainloop);
demux->pf_demux = NULL;
demux->pf_control = Control;
return VLC_SUCCESS;
error:
pa_threaded_mainloop_unlock(sys->mainloop);
Close(obj);
return VLC_EGENERIC;
}
static void Close (vlc_object_t *obj)
{
demux_t *demux = (demux_t *)obj;
demux_sys_t *sys = demux->p_sys;
pa_stream *s = sys->stream;
if (likely(s != NULL)) {
pa_threaded_mainloop_lock(sys->mainloop);
pa_stream_disconnect(s);
pa_stream_set_state_callback(s, NULL, NULL);
pa_stream_set_read_callback(s, NULL, NULL);
pa_stream_set_buffer_attr_callback(s, NULL, NULL);
pa_stream_set_moved_callback(s, NULL, NULL);
pa_stream_set_overflow_callback(s, NULL, NULL);
pa_stream_set_started_callback(s, NULL, NULL);
pa_stream_set_suspended_callback(s, NULL, NULL);
pa_stream_set_underflow_callback(s, NULL, NULL);
pa_stream_unref(s);
pa_threaded_mainloop_unlock(sys->mainloop);
}
vlc_pa_disconnect(obj, sys->context, sys->mainloop);
free(sys);
}
static int Open(vlc_object_t *object)
{
filter_t *filter = (filter_t *)object;
const es_format_t *src = &filter->fmt_in;
es_format_t *dst = &filter->fmt_out;
if (!AOUT_FMTS_SIMILAR(&src->audio, &dst->audio))
return VLC_EGENERIC;
if (src->i_codec == dst->i_codec)
return VLC_EGENERIC;
cvt_direct_t direct = FindDirect(src->i_codec, dst->i_codec);
if (direct) {
filter->pf_audio_filter = direct;
filter->p_sys = NULL;
goto end;
}
/* */
filter_sys_t *sys = malloc(sizeof(*sys));
if (!sys)
return VLC_ENOMEM;
/* Find the cost minimal conversion */
for (unsigned mask = 0; mask <= 0x07; mask++) {
memset(sys, 0, sizeof(*sys));
vlc_fourcc_t fsrc = src->i_codec;
vlc_fourcc_t fdst = dst->i_codec;
if (mask & 0x01) {
sys->pre = FindSwap(&fsrc, fsrc);
if (!sys->pre)
continue;
}
if (mask & 0x02) {
sys->post = FindSwap(&fdst, fdst);
if (!sys->post)
continue;
}
const bool has_middle = mask & 0x04;
for (int i = 0; fsrc != fdst && i < 1 + has_middle; i++) {
/* XXX Hardcoded middle format: native 16 bits */
vlc_fourcc_t ftarget = has_middle && i == 0 ? VLC_CODEC_S16N : fdst;
sys->directs[i] = FindDirect(fsrc, ftarget);
if (!sys->directs[i]) {
sys->indirects[i] = FindIndirect(fsrc, ftarget);
if (!sys->indirects[i])
break;
sys->indirects_ratio[i][0] = aout_BitsPerSample(fsrc) / 8;
sys->indirects_ratio[i][1] = aout_BitsPerSample(ftarget) / 8;
}
fsrc = ftarget;
}
if (fsrc != fdst)
continue;
/* We have a full conversion */
filter->pf_audio_filter = Filter;
filter->p_sys = sys;
goto end;
}
free(sys);
return VLC_EGENERIC;
end:
dst->audio = src->audio;
dst->audio.i_format = dst->i_codec;
aout_FormatPrepare(&dst->audio);
msg_Dbg(filter, "%4.4s->%4.4s, bits per sample: %i->%i",
(char *)&src->i_codec, (char *)&dst->i_codec,
src->audio.i_bitspersample, dst->audio.i_bitspersample);
return VLC_SUCCESS;
}
