/*****************************************************************************
* 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;
}
/*****************************************************************************
* 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;
}
static int SendBlock( demux_t *p_demux, int i )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block;
if( ( p_block = vlc_stream_Block( p_demux->s, i ) ) == NULL )
{
msg_Warn( p_demux, "cannot read data" );
return 0;
}
if( p_sys->i_frame_length )
{
p_block->i_pts = p_sys->i_time;
p_sys->i_time += p_sys->i_frame_length;
}
else
{
p_block->i_pts = mdate();
}
p_block->i_dts = p_block->i_pts;
/* set PCR */
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_es, p_block );
if( p_sys->b_still )
p_sys->i_still_end = mdate() + p_sys->i_frame_length;
return 1;
}
/*****************************************************************************
* 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;
int64_t i_offset = vlc_stream_Tell( p_demux->s );
unsigned i_frames = p_sys->i_block_frames;
if( p_sys->i_data_size > 0 &&
(i_offset - HEADER_LENGTH) >= p_sys->i_data_size )
{
return VLC_DEMUXER_EOF;
}
p_block = vlc_stream_Block( p_demux->s, p_sys->i_frame_size * i_frames );
if( p_block == NULL )
{
msg_Warn( p_demux, "cannot read data" );
return VLC_DEMUXER_EOF;
}
i_frames = p_block->i_buffer / p_sys->i_frame_size;
p_block->i_dts = 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 );
date_Increment( &p_sys->pts, i_frames * FRAME_LENGTH );
return VLC_DEMUXER_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;
int64_t i_offset;
unsigned i_frames = p_sys->i_block_frames;
i_offset = vlc_stream_Tell( p_demux->s );
if( p_sys->i_data_size > 0 &&
i_offset >= p_sys->i_data_offset + p_sys->i_data_size )
{
/* EOF */
return 0;
}
p_block = vlc_stream_Block( p_demux->s, p_sys->i_frame_size * i_frames );
if( p_block == NULL )
{
msg_Warn( p_demux, "cannot read data" );
return 0;
}
i_frames = p_block->i_buffer / p_sys->i_frame_size;
p_block->i_dts = p_block->i_pts = date_Get( &p_sys->pts );
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_es, p_block );
date_Increment( &p_sys->pts, i_frames * FRAME_LENGTH );
return 1;
}
static picture_t *ImageReadUrl( image_handler_t *p_image, const char *psz_url,
video_format_t *p_fmt_in,
video_format_t *p_fmt_out )
{
block_t *p_block;
picture_t *p_pic;
stream_t *p_stream = NULL;
uint64_t i_size;
p_stream = vlc_stream_NewMRL( p_image->p_parent, psz_url );
if( !p_stream )
{
msg_Dbg( p_image->p_parent, "could not open %s for reading",
psz_url );
return NULL;
}
if( vlc_stream_GetSize( p_stream, &i_size ) || i_size > SSIZE_MAX )
{
msg_Dbg( p_image->p_parent, "could not read %s", psz_url );
goto error;
}
p_block = vlc_stream_Block( p_stream, i_size );
if( p_block == NULL )
goto error;
if( !p_fmt_in->i_chroma )
{
char *psz_mime = stream_ContentType( p_stream );
if( psz_mime != NULL )
{
p_fmt_in->i_chroma = image_Mime2Fourcc( psz_mime );
free( psz_mime );
}
}
vlc_stream_Delete( p_stream );
if( !p_fmt_in->i_chroma )
{
/* Try to guess format from file name */
p_fmt_in->i_chroma = image_Ext2Fourcc( psz_url );
}
p_pic = ImageRead( p_image, p_block, p_fmt_in, p_fmt_out );
return p_pic;
error:
vlc_stream_Delete( p_stream );
return NULL;
}
static block_t *ps_pkt_read( stream_t *s )
{
const uint8_t *p_peek;
int i_peek = vlc_stream_Peek( s, &p_peek, 14 );
if( i_peek < 4 )
return NULL;
int i_size = ps_pkt_size( p_peek, i_peek );
if( i_size <= 6 && p_peek[3] > PS_STREAM_ID_PACK_HEADER )
{
/* Special case, search the next start code */
i_size = 6;
for( ;; )
{
i_peek = vlc_stream_Peek( s, &p_peek, i_size + 1024 );
if( i_peek <= i_size + 4 )
{
return NULL;
}
while( i_size <= i_peek - 4 )
{
if( p_peek[i_size] == 0x00 && p_peek[i_size+1] == 0x00 &&
p_peek[i_size+2] == 0x01 && p_peek[i_size+3] >= PS_STREAM_ID_END_STREAM )
{
return vlc_stream_Block( s, i_size );
}
i_size++;
}
}
}
else
{
/* Normal case */
return vlc_stream_Block( s, i_size );
}
return NULL;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* 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_out;
bool b_eof = false;
if( p_sys->p_current_block == NULL )
{
p_sys->p_current_block = vlc_stream_Block( p_demux->s, FLAC_PACKET_SIZE );
b_eof = (p_sys->p_current_block == NULL);
}
if ( p_sys->p_current_block )
{
p_sys->p_current_block->i_flags = p_sys->i_next_block_flags;
p_sys->i_next_block_flags = 0;
p_sys->p_current_block->i_pts =
p_sys->p_current_block->i_dts = p_sys->b_start ? VLC_TS_0 : VLC_TS_INVALID;
}
while( (p_block_out = p_sys->p_packetizer->pf_packetize( p_sys->p_packetizer,
(p_sys->p_current_block) ? &p_sys->p_current_block : NULL )) )
{
/* Only clear on output when packet is accepted as sync #17111 */
p_sys->b_start = false;
while( p_block_out )
{
block_t *p_next = p_block_out->p_next;
p_block_out->p_next = NULL;
/* set PCR */
if( unlikely(p_sys->i_pts == VLC_TS_INVALID) )
es_out_Control( p_demux->out, ES_OUT_SET_PCR, __MAX(p_block_out->i_dts - 1, VLC_TS_0) );
p_sys->i_pts = p_block_out->i_dts;
es_out_Send( p_demux->out, p_sys->p_es, p_block_out );
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pts );
p_block_out = p_next;
}
break;
}
return b_eof ? VLC_DEMUXER_EOF : VLC_DEMUXER_SUCCESS;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* 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;
p_block = vlc_stream_Block( p_demux->s, p_sys->i_frame_size );
if( p_block == NULL )
return VLC_DEMUXER_EOF;
p_block->i_dts = 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 );
date_Increment( &p_sys->pts, p_sys->i_frame_samples );
return VLC_DEMUXER_SUCCESS;
}
static int Demux(demux_t *demux)
{
demux_sys_t *sys = demux->p_sys;
while(sys->current < sys->count) {
stl_entry_t *s = &sys->index[sys->current];
if (s->start > sys->next_date)
break;
block_t *b = vlc_stream_Block(demux->s, 128 * s->count);
if (b) {
b->i_dts =
b->i_pts = VLC_TS_0 + s->start;
if (s->stop > s->start)
b->i_length = s->stop - s->start;
es_out_Send(demux->out, sys->es, b);
}
sys->current++;
}
return sys->current < sys->count ? 1 : 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;
/* set PCR */
es_out_SetPCR( p_demux->out, VLC_TS_0 + p_sys->i_time );
p_block = vlc_stream_Block( p_demux->s, p_sys->i_frame_size );
if( p_block == NULL )
{
msg_Warn( p_demux, "cannot read data" );
return 0;
}
p_block->i_dts =
p_block->i_pts = VLC_TS_0 + p_sys->i_time;
es_out_Send( p_demux->out, p_sys->es, p_block );
p_sys->i_time += p_sys->i_frame_length;
return 1;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* 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_in, *p_block_out;
bool b_eof = false;
if( ( p_block_in = vlc_stream_Block( p_demux->s, MPGV_PACKET_SIZE ) ) == NULL )
{
b_eof = true;
}
if( p_block_in )
{
p_block_in->i_pts =
p_block_in->i_dts = ( p_sys->b_start ) ? VLC_TS_0 : VLC_TS_INVALID;
}
while( (p_block_out = p_sys->p_packetizer->pf_packetize( p_sys->p_packetizer,
p_block_in ? &p_block_in : NULL )) )
{
p_sys->b_start = false;
while( p_block_out )
{
block_t *p_next = p_block_out->p_next;
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block_out->i_dts );
p_block_out->p_next = NULL;
es_out_Send( p_demux->out, p_sys->p_es, p_block_out );
p_block_out = p_next;
}
}
return (b_eof) ? VLC_DEMUXER_EOF : VLC_DEMUXER_SUCCESS;
}
static int RefineSeek( demux_t *p_demux, mtime_t i_time, double i_bytemicrorate,
uint64_t i_lowpos, uint64_t i_highpos )
{
demux_sys_t *p_sys = p_demux->p_sys;
bool b_found = false;
block_t *p_block_out;
block_t *p_block_in;
unsigned i_frame_size = FLAC_MIN_FRAME_SIZE;
bool b_canfastseek = false;
(int) vlc_stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_canfastseek );
uint64_t i_start_pos = vlc_stream_Tell( p_demux->s );
while( !b_found )
{
FlushPacketizer( p_sys->p_packetizer );
p_block_out = NULL;
p_block_in = NULL;
while( !p_block_out )
{
if( !p_block_in )
{
if( !(p_block_in = vlc_stream_Block( p_demux->s, i_frame_size )) )
break;
}
p_block_out = p_sys->p_packetizer->pf_packetize( p_sys->p_packetizer, &p_block_in );
}
if( !p_block_out )
{
if( p_block_in )
block_Release( p_block_in );
break;
}
if( p_block_out->i_buffer > i_frame_size )
i_frame_size = p_block_out->i_buffer;
/* If we are further than wanted block */
if( p_block_out->i_dts >= i_time )
{
mtime_t i_diff = p_block_out->i_dts - i_time;
/* Not in acceptable approximation range */
if( i_diff > CLOCK_FREQ / 10 && i_diff / i_bytemicrorate > i_frame_size )
{
i_highpos = i_start_pos;
i_start_pos -= ( i_diff / i_bytemicrorate );
i_start_pos = __MAX(i_start_pos, i_lowpos + i_frame_size);
}
else b_found = true;
}
else if( p_block_out->i_dts < i_time )
{
mtime_t i_diff = i_time - p_block_out->i_dts;
/* Not in acceptable NEXT_TIME demux range */
if( i_diff >= ((b_canfastseek) ? FLAC_MAX_PREROLL : FLAC_MAX_SLOW_PREROLL) &&
i_diff / i_bytemicrorate > i_frame_size )
{
i_lowpos = i_start_pos;
i_start_pos += ( i_diff / i_bytemicrorate );
i_start_pos = __MIN(i_start_pos, i_highpos - i_frame_size);
}
else b_found = true;
}
if( p_block_out )
block_Release( p_block_out );
if( p_block_in )
block_Release( p_block_in );
if( !b_found )
{
if( i_highpos < i_lowpos || i_highpos - i_lowpos < i_frame_size )
break;
if( VLC_SUCCESS != vlc_stream_Seek( p_demux->s, i_start_pos ) )
break;
}
}
return b_found ? VLC_SUCCESS : VLC_EGENERIC;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* 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_in, *p_block_out;
bool b_eof = false;
p_block_in = vlc_stream_Block( p_demux->s, H26X_PACKET_SIZE );
if( p_block_in == NULL )
{
b_eof = true;
}
else
{
p_block_in->i_dts = date_Get( &p_sys->dts );
}
while( (p_block_out = p_sys->p_packetizer->pf_packetize( p_sys->p_packetizer,
p_block_in ? &p_block_in : NULL )) )
{
while( p_block_out )
{
block_t *p_next = p_block_out->p_next;
p_block_out->p_next = NULL;
if( p_block_in )
{
p_block_in->i_dts = date_Get( &p_sys->dts );
p_block_in->i_pts = VLC_TICK_INVALID;
}
if( p_sys->p_es == NULL )
{
p_sys->p_packetizer->fmt_out.b_packetized = true;
p_sys->p_es = es_out_Add( p_demux->out, &p_sys->p_packetizer->fmt_out );
if( !p_sys->p_es )
{
block_ChainRelease( p_block_out );
return VLC_DEMUXER_EOF;
}
}
/* h264 packetizer does merge multiple NAL into AU, but slice flag persists */
bool frame = p_block_out->i_flags & BLOCK_FLAG_TYPE_MASK;
const vlc_tick_t i_frame_dts = p_block_out->i_dts;
const vlc_tick_t i_frame_length = p_block_out->i_length;
es_out_Send( p_demux->out, p_sys->p_es, p_block_out );
if( frame )
{
if( !p_sys->frame_rate_den )
{
/* Use packetizer's one */
if( p_sys->p_packetizer->fmt_out.video.i_frame_rate_base &&
p_sys->p_packetizer->fmt_out.video.i_frame_rate )
{
p_sys->frame_rate_num = p_sys->p_packetizer->fmt_out.video.i_frame_rate;
p_sys->frame_rate_den = p_sys->p_packetizer->fmt_out.video.i_frame_rate_base;
}
else
{
p_sys->frame_rate_num = 25000;
p_sys->frame_rate_den = 1000;
}
date_Init( &p_sys->dts, 2 * p_sys->frame_rate_num, p_sys->frame_rate_den );
date_Set( &p_sys->dts, VLC_TICK_0 );
msg_Dbg( p_demux, "using %.2f fps", (double) p_sys->frame_rate_num / p_sys->frame_rate_den );
}
es_out_SetPCR( p_demux->out, date_Get( &p_sys->dts ) );
unsigned i_nb_fields;
if( i_frame_length > 0 )
{
i_nb_fields = round( (double)i_frame_length * 2 * p_sys->frame_rate_num /
( p_sys->frame_rate_den * CLOCK_FREQ ) );
}
else i_nb_fields = 2;
if( i_nb_fields <= 6 ) /* in the legit range */
date_Increment( &p_sys->dts, i_nb_fields );
else /* Somehow some discontinuity */
date_Set( &p_sys->dts, i_frame_dts );
}
p_block_out = p_next;
}
}
return (b_eof) ? VLC_DEMUXER_EOF : VLC_DEMUXER_SUCCESS;
}
static int Open (vlc_object_t *obj)
{
demux_t *demux = (demux_t *)obj;
int64_t size = stream_Size (demux->s);
if (size > LONG_MAX /* too big for GME */)
return VLC_EGENERIC;
/* Auto detection */
const uint8_t *peek;
if (vlc_stream_Peek (demux->s, &peek, 4) < 4)
return VLC_EGENERIC;
const char *type = gme_identify_header (peek);
if (!*type)
return VLC_EGENERIC;
msg_Dbg (obj, "detected file type %s", type);
block_t *data = NULL;
if (size <= 0)
{
data = vlc_stream_Block (demux->s, 1 << 24);
if (data == NULL)
return VLC_EGENERIC;
}
/* Initialization */
demux_sys_t *sys = malloc (sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
sys->emu = gme_new_emu (gme_identify_extension (type), RATE);
if (sys->emu == NULL)
{
free (sys);
return VLC_ENOMEM;
}
if (data)
{
gme_load_custom (sys->emu, ReaderBlock, data->i_buffer, data);
block_Release(data);
}
else
{
gme_load_custom (sys->emu, ReaderStream, size, demux->s);
}
gme_start_track (sys->emu, sys->track_id = 0);
es_format_t fmt;
es_format_Init (&fmt, AUDIO_ES, VLC_CODEC_S16N);
fmt.audio.i_rate = RATE;
fmt.audio.i_bytes_per_frame = 4;
fmt.audio.i_frame_length = 4;
fmt.audio.i_channels = 2;
fmt.audio.i_blockalign = 4;
fmt.audio.i_bitspersample = 16;
fmt.i_bitrate = RATE * 4;
sys->es = es_out_Add (demux->out, &fmt);
date_Init (&sys->pts, RATE, 1);
date_Set (&sys->pts, 0);
/* Titles */
unsigned n = gme_track_count (sys->emu);
sys->titlev = malloc (n * sizeof (*sys->titlev));
if (unlikely(sys->titlev == NULL))
n = 0;
sys->titlec = n;
for (unsigned i = 0; i < n; i++)
{
input_title_t *title = vlc_input_title_New ();
sys->titlev[i] = title;
if (unlikely(title == NULL))
continue;
gme_info_t *infos;
if (gme_track_info (sys->emu, &infos, i))
continue;
msg_Dbg (obj, "track %u: %s %d ms", i, infos->song, infos->length);
if (infos->length != -1)
title->i_length = infos->length * INT64_C(1000);
if (infos->song[0])
title->psz_name = strdup (infos->song);
gme_free_info (infos);
}
/* Callbacks */
demux->pf_demux = Demux;
demux->pf_control = Control;
demux->p_sys = sys;
return VLC_SUCCESS;
}
/*****************************************************************************
* Demux: reads and demuxes data packets
*****************************************************************************
* 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_in, *p_block_out;
p_block_in = vlc_stream_Block( p_demux->s, H26X_PACKET_SIZE );
if( p_block_in == NULL )
{
return 0;
}
while( (p_block_out = p_sys->p_packetizer->pf_packetize( p_sys->p_packetizer, &p_block_in )) )
{
while( p_block_out )
{
block_t *p_next = p_block_out->p_next;
p_block_out->p_next = NULL;
p_block_in->i_dts = date_Get( &p_sys->dts );
p_block_in->i_pts = VLC_TS_INVALID;
if( p_sys->p_es == NULL )
{
p_sys->p_packetizer->fmt_out.b_packetized = true;
p_sys->p_es = es_out_Add( p_demux->out, &p_sys->p_packetizer->fmt_out );
if( !p_sys->p_es )
return VLC_DEMUXER_EOF;
}
/* h264 packetizer does merge multiple NAL into AU, but slice flag persists */
bool frame = p_block_out->i_flags & BLOCK_FLAG_TYPE_MASK;
es_out_Send( p_demux->out, p_sys->p_es, p_block_out );
if( frame )
{
if( !p_sys->frame_rate_den )
{
/* Use packetizer's one */
if( p_sys->p_packetizer->fmt_out.video.i_frame_rate_base )
{
p_sys->frame_rate_num = p_sys->p_packetizer->fmt_out.video.i_frame_rate;
p_sys->frame_rate_den = p_sys->p_packetizer->fmt_out.video.i_frame_rate_base;
}
else
{
p_sys->frame_rate_num = 25000;
p_sys->frame_rate_den = 1000;
}
date_Init( &p_sys->dts, p_sys->frame_rate_num, p_sys->frame_rate_den );
date_Set( &p_sys->dts, VLC_TS_0 );
msg_Dbg( p_demux, "using %.2f fps", (double) p_sys->frame_rate_num / p_sys->frame_rate_den );
}
es_out_Control( p_demux->out, ES_OUT_SET_PCR, date_Get( &p_sys->dts ) );
date_Increment( &p_sys->dts, 1 );
}
p_block_out = p_next;
}
}
return 1;
}
