static int Control(demux_t *demux, int query, va_list args)
{
demux_sys_t *sys = demux->p_sys;
switch (query) {
case DEMUX_CAN_SEEK:
*va_arg(args, bool *) = sys->duration >= 0 && !sys->is_realtime;
return VLC_SUCCESS;
case DEMUX_GET_POSITION: {
double *position = va_arg(args, double *);
if (sys->duration > 0)
*position = date_Get(&sys->pts) / (double)sys->duration;
else
*position = 0;
return VLC_SUCCESS;
}
case DEMUX_SET_POSITION: {
if (sys->duration < 0 || sys->is_realtime)
return VLC_EGENERIC;
double position = va_arg(args, double);
date_Set(&sys->pts, position * sys->duration);
return VLC_SUCCESS;
}
case DEMUX_GET_TIME: {
int64_t *time = va_arg(args, int64_t *);
*time = sys->pts_origin + date_Get(&sys->pts);
return VLC_SUCCESS;
}
case DEMUX_SET_TIME: {
if (sys->duration < 0 || sys->is_realtime)
return VLC_EGENERIC;
int64_t time = va_arg(args, int64_t);
date_Set(&sys->pts, VLC_CLIP(time - sys->pts_origin, 0, sys->duration));
return VLC_SUCCESS;
}
case DEMUX_SET_NEXT_DEMUX_TIME: {
int64_t pts_next = VLC_TS_0 + va_arg(args, int64_t);
if (sys->pts_next <= VLC_TS_INVALID)
sys->pts_origin = pts_next;
sys->pts_next = pts_next;
return VLC_SUCCESS;
}
case DEMUX_GET_LENGTH: {
int64_t *length = va_arg(args, int64_t *);
*length = __MAX(sys->duration, 0);
return VLC_SUCCESS;
}
case DEMUX_GET_FPS: {
double *fps = va_arg(args, double *);
*fps = (double)sys->pts.i_divider_num / sys->pts.i_divider_den;
return VLC_SUCCESS;
}
case DEMUX_GET_META:
case DEMUX_HAS_UNSUPPORTED_META:
case DEMUX_GET_ATTACHMENTS:
default:
return VLC_EGENERIC;
}
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with complete frames.
****************************************************************************/
static void *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
block_t *p_block;
void *p_buf;
if( !pp_block || !*pp_block ) return NULL;
p_block = *pp_block;
if( p_block->i_pts <= VLC_TS_INVALID && p_block->i_dts <= VLC_TS_INVALID &&
!date_Get( &p_sys->pts ) )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
return NULL;
}
/* Date management: If there is a pts avaliable, use that. */
if( p_block->i_pts > VLC_TS_INVALID )
{
date_Set( &p_sys->pts, p_block->i_pts );
}
else if( p_block->i_dts > VLC_TS_INVALID )
{
/* NB, davidf doesn't quite agree with this in general, it is ok
* for rawvideo since it is in order (ie pts=dts), however, it
* may not be ok for an out-of-order codec, so don't copy this
* without thinking */
date_Set( &p_sys->pts, p_block->i_dts );
}
if( p_block->i_buffer < p_sys->i_raw_size )
{
msg_Warn( p_dec, "invalid frame size (%zu < %zu)",
p_block->i_buffer, p_sys->i_raw_size );
block_Release( p_block );
return NULL;
}
if( p_sys->b_packetizer )
{
p_buf = SendFrame( p_dec, p_block );
}
else
{
p_buf = DecodeFrame( p_dec, p_block );
}
/* Date management: 1 frame per packet */
date_Increment( &p_sys->pts, 1 );
*pp_block = NULL;
return p_buf;
}
static int Control (demux_t *demux, int query, va_list args)
{
demux_sys_t *sys = demux->p_sys;
switch (query)
{
case DEMUX_GET_POSITION:
*va_arg (args, float *) = 0.f;
break;
case DEMUX_GET_LENGTH:
*va_arg (args, int64_t *) = INT64_C(0);
break;
case DEMUX_GET_TIME:
*va_arg (args, int64_t *) = date_Get (&sys->date);
break;
case DEMUX_SET_TIME:
date_Set (&sys->date, va_arg (args, int64_t));
break;
case DEMUX_SET_NEXT_DEMUX_TIME:
{
const mtime_t pts = va_arg (args, int64_t );
if (sys->next_time == VLC_TS_INVALID) /* first invocation? */
{
date_Set (&sys->date, pts);
date_Decrement (&sys->date, 1);
}
sys->next_time = pts;
break;
}
case DEMUX_GET_PTS_DELAY:
{
int64_t *v = va_arg (args, int64_t *);
*v = INT64_C(1000) * var_InheritInteger (demux, "live-caching");
break;
}
case DEMUX_CAN_PAUSE:
case DEMUX_CAN_CONTROL_PACE:
case DEMUX_CAN_SEEK:
*va_arg (args, bool *) = true;
break;
default:
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
static int Audio_OnNewBlock(decoder_t *p_dec, block_t *p_block)
{
decoder_sys_t *p_sys = p_dec->p_sys;
if (p_block->i_flags & (BLOCK_FLAG_DISCONTINUITY|BLOCK_FLAG_CORRUPTED))
{
if (DecodeFlush(p_dec) != VLC_SUCCESS)
return -1;
date_Set(&p_sys->u.audio.i_end_date, VLC_TS_INVALID);
return 0;
}
/* We've just started the stream, wait for the first PTS. */
if (!date_Get(&p_sys->u.audio.i_end_date))
{
if (p_block->i_pts <= VLC_TS_INVALID)
return 0;
date_Set(&p_sys->u.audio.i_end_date, p_block->i_pts);
}
/* try delayed opening if there is a new extra data */
if (!p_sys->api->b_started)
{
bool b_delayed_start = false;
switch (p_dec->fmt_in.i_codec)
{
case VLC_CODEC_VORBIS:
case VLC_CODEC_MP4A:
if (p_dec->fmt_in.i_extra)
b_delayed_start = true;
default:
break;
}
if (!p_dec->p_sys->u.audio.i_channels && p_dec->fmt_in.audio.i_channels)
{
p_dec->p_sys->u.audio.i_channels = p_dec->fmt_in.audio.i_channels;
b_delayed_start = true;
}
if (b_delayed_start && !p_dec->p_sys->u.audio.i_channels
&& p_sys->u.audio.b_need_channels)
b_delayed_start = false;
if (b_delayed_start && StartMediaCodec(p_dec) != VLC_SUCCESS)
return -1;
if (!p_sys->api->b_started)
return 0;
}
return 1;
}
/*****************************************************************************
* Open: check file and initializes structures
*****************************************************************************/
static int Open( vlc_object_t * p_this )
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
/* Identify cdg file by extension, as there is no simple way to
* detect it */
if( !demux_IsPathExtension( p_demux, ".cdg" ) && !demux_IsForced( p_demux, "cdg" ) )
return VLC_EGENERIC;
/* CDG file size has to be multiple of CDG_FRAME_SIZE (it works even
* if size is unknown ie 0) */
// if( (stream_Size( p_demux->s ) % CDG_FRAME_SIZE) != 0 )
// {
// msg_Err( p_demux, "Reject CDG file based on its size" );
// return VLC_EGENERIC;
// }
p_demux->pf_demux = Demux;
p_demux->pf_control = Control;
p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
/* */
es_format_Init( &p_sys->fmt, VIDEO_ES, VLC_CODEC_CDG );
p_sys->fmt.video.i_width = 300-2*6;
p_sys->fmt.video.i_height = 216-2*12 ;
p_sys->p_es = es_out_Add( p_demux->out, &p_sys->fmt );
/* There is CDG_FRAME_RATE frames per second */
date_Init( &p_sys->pts, CDG_FRAME_RATE, 1 );
date_Set( &p_sys->pts, 1 );
return VLC_SUCCESS;
}
static int Open (vlc_object_t *obj)
{
demux_t *demux = (demux_t *)obj;
demux_sys_t *sys = vlc_malloc(obj, sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
es_format_t fmt;
es_format_Init (&fmt, SPU_ES, VLC_CODEC_ITU_T140);
sys->es = es_out_Add (demux->out, &fmt);
unsigned num, den;
if (var_InheritURational (demux, &num, &den, "timecode-fps")
|| !num || !den)
{
msg_Err (demux, "invalid frame rate");
return VLC_EGENERIC;
}
date_Init (&sys->date, num, den);
date_Set (&sys->date, VLC_TS_0);
sys->next_time = VLC_TS_INVALID;
demux->p_sys = sys;
demux->pf_demux = Demux;
demux->pf_control = Control;
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenDecoder: probe the decoder and return score
*****************************************************************************/
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_OPUS )
return VLC_EGENERIC;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = malloc(sizeof(decoder_sys_t)) ) == NULL )
return VLC_ENOMEM;
p_dec->p_sys->b_has_headers = false;
date_Set( &p_sys->end_date, 0 );
/* Set output properties */
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
p_dec->pf_decode_audio = DecodeBlock;
p_dec->pf_packetize = DecodeBlock;
p_sys->p_st = NULL;
return VLC_SUCCESS;
}
static int SeekSet0 (demux_t *demux)
{
stream_t *stream = demux->s;
demux_sys_t *sys = demux->p_sys;
/* Default SMF tempo is 120BPM, i.e. half a second per quarter note */
date_Init (&sys->pts, sys->ppqn * 2, 1);
date_Set (&sys->pts, VLC_TS_0);
sys->pulse = 0;
sys->tick = VLC_TS_0;
for (unsigned i = 0; i < sys->trackc; i++)
{
mtrk_t *tr = sys->trackv + i;
tr->offset = 0;
tr->next = 0;
/* Why 0xF6 (Tuning Calibration)?
* Because it has zero bytes of data, so the parser will detect the
* error if the first event uses running status. */
tr->running_event = 0xF6;
if (stream_Seek (stream, tr->start)
|| ReadDeltaTime (stream, tr))
{
msg_Err (demux, "fatal parsing error");
return -1;
}
}
return 0;
}
/*****************************************************************************
* Demux: read packet and send them to decoders
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
vlc_tick_t i_date;
p_block = vlc_stream_Block( p_demux->s, CDG_FRAME_SIZE );
if( p_block == NULL )
{
msg_Dbg( p_demux, "cannot read data, eof" );
return VLC_DEMUXER_EOF;
}
i_date = PosToDate( p_demux );
if( i_date >= date_Get( &p_sys->pts ) + CDG_FRAME_DELTA )
{
p_block->i_dts = p_block->i_pts = VLC_TICK_0 + i_date;
date_Set( &p_sys->pts, VLC_TICK_0 + i_date );
}
else
{
p_block->i_dts = VLC_TICK_0 + i_date;
p_block->i_pts = date_Get( &p_sys->pts );
}
es_out_SetPCR( p_demux->out, p_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_es, p_block );
return VLC_DEMUXER_SUCCESS;
}
/*****************************************************************************
* ProcessPacket: processes a Opus packet.
*****************************************************************************/
static void *ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
block_t *p_block = *pp_block;
/* Date management */
if( p_block && p_block->i_pts > VLC_TS_INVALID &&
p_block->i_pts != date_Get( &p_sys->end_date ) )
{
date_Set( &p_sys->end_date, p_block->i_pts );
}
if( !date_Get( &p_sys->end_date ) )
{
/* We've just started the stream, wait for the first PTS. */
if( p_block ) block_Release( p_block );
return NULL;
}
*pp_block = NULL; /* To avoid being fed the same packet again */
if( !p_block )
return NULL;
block_t *p_aout_buffer = DecodePacket( p_dec, p_oggpacket,
p_block->i_nb_samples,
(int)p_block->i_length );
block_Release( p_block );
return p_aout_buffer;
}
/*****************************************************************************
* OpenCommon:
*****************************************************************************/
static int OpenCommon( vlc_object_t *p_this, bool b_packetizer )
{
decoder_t *p_dec = (decoder_t*)p_this;
decoder_sys_t *p_sys;
if( p_dec->fmt_in.i_codec != VLC_CODEC_DTS )
return VLC_EGENERIC;
/* Allocate the memory needed to store the decoder's structure */
if( ( p_dec->p_sys = p_sys = malloc(sizeof(*p_sys)) ) == NULL )
return VLC_ENOMEM;
/* Misc init */
p_sys->b_packetizer = b_packetizer;
p_sys->i_state = STATE_NOSYNC;
date_Set( &p_sys->end_date, 0 );
p_sys->b_dts_hd = false;
p_sys->i_pts = VLC_TS_INVALID;
block_BytestreamInit( &p_sys->bytestream );
/* Set output properties */
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.i_codec = VLC_CODEC_DTS;
p_dec->fmt_out.audio.i_rate = 0; /* So end_date gets initialized */
/* Set callback */
p_dec->pf_decode_audio = DecodeBlock;
p_dec->pf_packetize = DecodeBlock;
return VLC_SUCCESS;
}
/*****************************************************************************
* Demux: read packet and send them to decoders
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
mtime_t i_date;
mtime_t i_delta;
i_delta = INT64_C(1000000) / CDG_FRAME_RATE;
p_block = vlc_stream_Block( p_demux->s, CDG_FRAME_SIZE );
if( p_block == NULL )
{
msg_Dbg( p_demux, "cannot read data, eof" );
return 0;
}
i_date = vlc_stream_Tell( p_demux->s ) / CDG_FRAME_SIZE * i_delta;
if( i_date >= date_Get( &p_sys->pts ) + i_delta )
{
p_block->i_dts = p_block->i_pts = i_date;
date_Set( &p_sys->pts, i_date );
}
else
{
p_block->i_dts = i_date;
p_block->i_pts = date_Get( &p_sys->pts );
}
es_out_SetPCR( p_demux->out, p_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_es, p_block );
return 1;
}
/****************************************************************************
* Helpers
****************************************************************************/
static void PacketizeReset( void *p_private, bool b_broken )
{
decoder_t *p_dec = p_private;
decoder_sys_t *p_sys = p_dec->p_sys;
if( b_broken || !p_sys->b_slice )
{
DropStoredNAL( p_sys );
p_sys->b_new_sps = false;
p_sys->b_new_pps = false;
p_sys->p_active_pps = NULL;
p_sys->p_active_sps = NULL;
p_sys->i_frame_pts = VLC_TS_INVALID;
p_sys->i_frame_dts = VLC_TS_INVALID;
p_sys->slice.type = H264_SLICE_TYPE_UNKNOWN;
p_sys->b_slice = false;
/* POC */
h264_poc_context_init( &p_sys->pocctx );
p_sys->prevdatedpoc.pts = VLC_TS_INVALID;
/* From SEI */
p_sys->i_dpb_output_delay = 0;
p_sys->i_pic_struct = UINT8_MAX;
p_sys->i_recovery_frame_cnt = UINT_MAX;
}
p_sys->i_next_block_flags = BLOCK_FLAG_DISCONTINUITY;
p_sys->b_recovered = false;
p_sys->i_recoveryfnum = UINT_MAX;
date_Set( &p_sys->dts, VLC_TS_INVALID );
}
static int Audio_OnNewBlock(decoder_t *p_dec, block_t *p_block, int *p_flags)
{
decoder_sys_t *p_sys = p_dec->p_sys;
/* We've just started the stream, wait for the first PTS. */
if (!date_Get(&p_sys->u.audio.i_end_date))
{
if (p_block->i_pts <= VLC_TS_INVALID)
return 0;
date_Set(&p_sys->u.audio.i_end_date, p_block->i_pts);
}
/* try delayed opening if there is a new extra data */
if (!p_sys->api->b_started)
{
p_dec->p_sys->u.audio.i_channels = p_dec->fmt_in.audio.i_channels;
*p_flags |= NEWBLOCK_FLAG_RESTART;
/* Don't start if we don't have any csd */
if ((p_sys->i_quirks & OMXCODEC_QUIRKS_NEED_CSD)
&& !p_dec->fmt_in.i_extra)
*p_flags &= ~NEWBLOCK_FLAG_RESTART;
/* Don't start if we don't have a valid channels count */
if ((p_sys->i_quirks & OMXCODEC_AUDIO_QUIRKS_NEED_CHANNELS)
&& !p_dec->p_sys->u.audio.i_channels)
*p_flags &= ~NEWBLOCK_FLAG_RESTART;
}
return 1;
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with complete frames.
****************************************************************************/
static block_t *DecodeBlock( decoder_t *p_dec, block_t *p_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
if( p_block->i_flags & (BLOCK_FLAG_CORRUPTED|BLOCK_FLAG_DISCONTINUITY) )
{
date_Set( &p_sys->pts, p_block->i_dts );
if( p_block->i_flags & BLOCK_FLAG_CORRUPTED )
{
block_Release( p_block );
return NULL;
}
}
if( p_block->i_pts <= VLC_TS_INVALID && p_block->i_dts <= VLC_TS_INVALID &&
!date_Get( &p_sys->pts ) )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
return NULL;
}
/* Date management: If there is a pts avaliable, use that. */
if( p_block->i_pts > VLC_TS_INVALID )
{
date_Set( &p_sys->pts, p_block->i_pts );
}
else if( p_block->i_dts > VLC_TS_INVALID )
{
/* NB, davidf doesn't quite agree with this in general, it is ok
* for rawvideo since it is in order (ie pts=dts), however, it
* may not be ok for an out-of-order codec, so don't copy this
* without thinking */
date_Set( &p_sys->pts, p_block->i_dts );
}
if( p_block->i_buffer < p_sys->size )
{
msg_Warn( p_dec, "invalid frame size (%zu < %zu)",
p_block->i_buffer, p_sys->size );
block_Release( p_block );
return NULL;
}
return p_block;
}
static block_t *PacketizeParse( void *p_private, bool *pb_ts_used, block_t *p_block )
{
decoder_t *p_dec = p_private;
decoder_sys_t *p_sys = p_dec->p_sys;
const uint8_t *p_buf = &p_block->p_buffer[2];
size_t i_buf = p_block->i_buffer - 2;
while( i_buf > 4 && p_buf[0] == 0xFF )
{
size_t i_size = 2 + GetWBE( &p_buf[2] );
if( i_size > i_buf )
break;
if( p_buf[1] == 0xC0 && i_buf > 9 )
{
uint16_t i_height = GetWBE( &p_buf[5] );
uint16_t i_width = GetWBE( &p_buf[7] );
if( i_height && i_width &&
(p_dec->fmt_out.video.i_height != i_height ||
p_dec->fmt_out.video.i_width != i_width) )
{
p_dec->fmt_out.video.i_width =
p_dec->fmt_out.video.i_visible_width = i_width;
p_dec->fmt_out.video.i_height =
p_dec->fmt_out.video.i_visible_height = i_height;
}
break;
}
i_buf -= i_size;
p_buf += i_size;
}
if( p_block->i_dts == VLC_TICK_INVALID )
p_block->i_dts = p_block->i_pts;
else if( p_block->i_pts == VLC_TICK_INVALID )
p_block->i_pts = p_block->i_dts;
vlc_tick_t i_prev_dts = date_Get( &p_sys->date );
if( p_block->i_dts != VLC_TICK_INVALID )
{
date_Set( &p_sys->date, p_block->i_dts );
}
else if( p_dec->fmt_in.video.i_frame_rate &&
p_dec->fmt_in.video.i_frame_rate_base )
{
date_Increment( &p_sys->date, 1 );
p_block->i_dts = p_block->i_pts = date_Get( &p_sys->date );
}
if( i_prev_dts != VLC_TICK_INVALID && p_block->i_dts != VLC_TICK_INVALID )
p_block->i_length = p_block->i_dts - i_prev_dts;
*pb_ts_used = true;
p_block->i_flags = p_sys->i_next_block_flags | BLOCK_FLAG_TYPE_I;
p_sys->i_next_block_flags = 0;
return p_block;
}
static void PacketizeFlush( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
date_Set( &p_sys->date, VLC_TICK_INVALID );
p_sys->i_next_block_flags = BLOCK_FLAG_DISCONTINUITY;
packetizer_Flush( &p_sys->packetizer );
}
/**
* Initializes the members of a FIFO.
*/
static void aout_FifoInit( aout_fifo_t *p_fifo, uint32_t i_rate )
{
assert( i_rate != 0);
p_fifo->p_first = NULL;
p_fifo->pp_last = &p_fifo->p_first;
date_Init( &p_fifo->end_date, i_rate, 1 );
date_Set( &p_fifo->end_date, VLC_TS_INVALID );
}
/*****************************************************************************
* ProcessPacket: processes a Vorbis packet.
*****************************************************************************/
static void *ProcessPacket( decoder_t *p_dec, ogg_packet *p_oggpacket,
block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
block_t *p_block = *pp_block;
*pp_block = NULL; /* To avoid being fed the same packet again */
if( !p_block )
return NULL;
if( p_block->i_flags & BLOCK_FLAG_DISCONTINUITY )
date_Set( &p_sys->end_date, 0 );
if( ( p_block->i_flags & BLOCK_FLAG_CORRUPTED ) != 0 )
{
block_Release(p_block);
return NULL;
}
/* Date management */
if( p_block->i_pts > VLC_TS_INVALID &&
p_block->i_pts != date_Get( &p_sys->end_date ) )
{
date_Set( &p_sys->end_date, p_block->i_pts );
}
if( !date_Get( &p_sys->end_date ) )
{
/* We've just started the stream, wait for the first PTS. */
if( p_block ) block_Release( p_block );
return NULL;
}
if( p_sys->b_packetizer )
{
return SendPacket( p_dec, p_oggpacket, p_block );
}
else
{
block_t *p_aout_buffer = DecodePacket( p_dec, p_oggpacket );
if( p_block )
block_Release( p_block );
return p_aout_buffer;
}
}
static int Open (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_MIDI)
return VLC_EGENERIC;
char *font_path = var_CreateGetNonEmptyString (p_this, "soundfont");
if (font_path == NULL)
{
msg_Err (p_this, "sound fonts file required for synthesis");
return VLC_EGENERIC;
}
p_dec->pf_decode_audio = DecodeBlock;
p_sys = p_dec->p_sys = malloc (sizeof (*p_sys));
if (p_sys == NULL)
{
free (font_path);
return VLC_ENOMEM;
}
p_sys->settings = new_fluid_settings ();
p_sys->synth = new_fluid_synth (p_sys->settings);
/* FIXME: I bet this is not thread-safe */
p_sys->soundfont = fluid_synth_sfload (p_sys->synth, font_path, 1);
free (font_path);
if (p_sys->soundfont == -1)
{
msg_Err (p_this, "cannot load sound fonts file");
Close (p_this);
return VLC_EGENERIC;
}
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.audio.i_rate = 44100;
p_dec->fmt_out.audio.i_channels = 2;
p_dec->fmt_out.audio.i_original_channels =
p_dec->fmt_out.audio.i_physical_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
if (HAVE_FPU)
{
p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
p_dec->fmt_out.audio.i_bitspersample = 32;
p_sys->fixed = false;
}
else
{
p_dec->fmt_out.i_codec = VLC_CODEC_S16N;
p_dec->fmt_out.audio.i_bitspersample = 16;
p_sys->fixed = true;
}
date_Init (&p_sys->end_date, p_dec->fmt_out.audio.i_rate, 1);
date_Set (&p_sys->end_date, 0);
return VLC_SUCCESS;
}
void aout_DecFlush (audio_output_t *aout)
{
aout_owner_t *owner = aout_owner (aout);
aout_lock (aout);
date_Set (&owner->sync.date, VLC_TS_INVALID);
aout_OutputFlush (aout, false);
aout_unlock (aout);
}
/*****************************************************************************
* Helpers:
*****************************************************************************/
static void PacketizeReset( void *p_private, bool b_broken )
{
VLC_UNUSED(b_broken);
decoder_t *p_dec = p_private;
decoder_sys_t *p_sys = p_dec->p_sys;
date_Set( &p_sys->date, VLC_TICK_INVALID );
p_sys->i_next_block_flags = BLOCK_FLAG_DISCONTINUITY;
}
static void PacketizeFlush( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
p_sys->b_discontinuity = true;
date_Set( &p_sys->end_date, 0 );
p_sys->i_state = STATE_NOSYNC;
block_BytestreamEmpty( &p_sys->bytestream );
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with whole samples (see nBlockAlign).
****************************************************************************/
static block_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
if( !pp_block || !*pp_block ) return NULL;
block_t *p_block = *pp_block;
if( p_block->i_pts > VLC_TS_INVALID &&
p_block->i_pts != date_Get( &p_sys->end_date ) )
{
date_Set( &p_sys->end_date, p_block->i_pts );
}
else if( !date_Get( &p_sys->end_date ) )
{
/* We've just started the stream, wait for the first PTS. */
block_Release( p_block );
return NULL;
}
/* Don't re-use the same pts twice */
p_block->i_pts = VLC_TS_INVALID;
unsigned samples = (8 * p_block->i_buffer) / p_sys->framebits;
if( samples == 0 )
{
block_Release( p_block );
return NULL;
}
/* Create chunks of max 1024 samples */
if( samples > 1024 ) samples = 1024;
block_t *p_out = decoder_NewAudioBuffer( p_dec, samples );
if( p_out == NULL )
{
block_Release( p_block );
return NULL;
}
p_out->i_pts = date_Get( &p_sys->end_date );
p_out->i_length = date_Increment( &p_sys->end_date, samples )
- p_out->i_pts;
if( p_sys->decode != NULL )
p_sys->decode( p_out->p_buffer, p_block->p_buffer,
samples * p_dec->fmt_in.audio.i_channels );
else
memcpy( p_out->p_buffer, p_block->p_buffer, p_out->i_buffer );
samples = (samples * p_sys->framebits) / 8;
p_block->p_buffer += samples;
p_block->i_buffer -= samples;
return p_out;
}
void aout_DecChangePause (audio_output_t *aout, bool paused, mtime_t date)
{
aout_owner_t *owner = aout_owner (aout);
aout_lock (aout);
/* XXX: Should the date be offset by the pause duration instead? */
date_Set (&owner->sync.date, VLC_TS_INVALID);
aout_OutputPause (aout, paused, date);
aout_unlock (aout);
}
/*****************************************************************************
* aout_FifoInit : initialize the members of a FIFO
*****************************************************************************/
void aout_FifoInit( vlc_object_t *obj, aout_fifo_t * p_fifo, uint32_t i_rate )
{
if( unlikely(i_rate == 0) )
msg_Err( obj, "initialising fifo with zero divider" );
p_fifo->p_first = NULL;
p_fifo->pp_last = &p_fifo->p_first;
date_Init( &p_fifo->end_date, i_rate, 1 );
date_Set( &p_fifo->end_date, VLC_TS_INVALID );
}
/****************************************************************************
* DecodeBlock: the whole thing
****************************************************************************
* This function must be fed with whole samples (see nBlockAlign).
****************************************************************************/
static int DecodeBlock( decoder_t *p_dec, block_t *p_block )
{
decoder_sys_t *p_sys = p_dec->p_sys;
if( p_block == NULL ) /* No Drain */
return VLCDEC_SUCCESS;
if( p_block->i_flags & (BLOCK_FLAG_CORRUPTED|BLOCK_FLAG_DISCONTINUITY) )
{
Flush( p_dec );
if( p_block->i_flags & BLOCK_FLAG_CORRUPTED )
goto skip;
}
if( p_block->i_pts > VLC_TS_INVALID &&
p_block->i_pts != date_Get( &p_sys->end_date ) )
{
date_Set( &p_sys->end_date, p_block->i_pts );
}
else if( !date_Get( &p_sys->end_date ) )
/* We've just started the stream, wait for the first PTS. */
goto skip;
unsigned samples = (8 * p_block->i_buffer) / p_sys->framebits;
if( samples == 0 )
goto skip;
if( p_sys->decode != NULL )
{
if( decoder_UpdateAudioFormat( p_dec ) )
goto skip;
block_t *p_out = decoder_NewAudioBuffer( p_dec, samples );
if( p_out == NULL )
goto skip;
p_sys->decode( p_out->p_buffer, p_block->p_buffer,
samples * p_dec->fmt_in.audio.i_channels );
block_Release( p_block );
p_block = p_out;
}
else
{
decoder_UpdateAudioFormat( p_dec );
p_block->i_nb_samples = samples;
p_block->i_buffer = samples * (p_sys->framebits / 8);
}
p_block->i_pts = date_Get( &p_sys->end_date );
p_block->i_length = date_Increment( &p_sys->end_date, samples )
- p_block->i_pts;
decoder_QueueAudio( p_dec, p_block );
return VLCDEC_SUCCESS;
skip:
block_Release( p_block );
return VLCDEC_SUCCESS;
}
/*****************************************************************************
* Flush:
*****************************************************************************/
static void Flush( decoder_t *p_dec )
{
decoder_sys_t *p_sys = p_dec->p_sys;
date_Set( &p_sys->end_date, 0 );
mpg123_close( p_sys->p_handle );
mpg123_delete( p_sys->p_handle );
p_sys->b_opened = false;
MPG123Open( p_dec );
}
static void Flush (decoder_t *p_dec)
{
decoder_sys_t *p_sys = p_dec->p_sys;
date_Set (&p_sys->end_date, VLC_TS_INVALID);
//fluid_synth_system_reset (p_sys->synth);
fluid_synth_program_reset (p_sys->synth);
for (unsigned channel = 0; channel < 16; channel++)
for (unsigned note = 0; note < 128; note++)
fluid_synth_noteoff (p_sys->synth, channel, note);
}
int transcode_audio_process( sout_stream_t *p_stream,
sout_stream_id_t *id,
block_t *in, block_t **out )
{
sout_stream_sys_t *p_sys = p_stream->p_sys;
block_t *p_block, *p_audio_buf;
*out = NULL;
while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
&in )) )
{
sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_AUDIO, 1 );
if( p_sys->b_master_sync )
{
mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
if ( p_audio_buf->i_pts - i_dts > MASTER_SYNC_MAX_DRIFT
|| p_audio_buf->i_pts - i_dts < -MASTER_SYNC_MAX_DRIFT )
{
msg_Dbg( p_stream, "drift is too high, resetting master sync" );
date_Set( &id->interpolated_pts, p_audio_buf->i_pts );
i_dts = p_audio_buf->i_pts + 1;
}
p_sys->i_master_drift = p_audio_buf->i_pts - i_dts;
date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
p_audio_buf->i_pts -= p_sys->i_master_drift;
}
p_audio_buf->i_dts = p_audio_buf->i_pts;
/* Run filter chain */
if( id->p_uf_chain )
{
p_audio_buf = filter_chain_AudioFilter( id->p_uf_chain,
p_audio_buf );
if( !p_audio_buf )
abort();
}
p_audio_buf = filter_chain_AudioFilter( id->p_f_chain, p_audio_buf );
if( !p_audio_buf )
abort();
p_audio_buf->i_dts = p_audio_buf->i_pts;
audio_timer_start( id->p_encoder );
p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
audio_timer_stop( id->p_encoder );
block_ChainAppend( out, p_block );
block_Release( p_audio_buf );
}
return VLC_SUCCESS;
}
