+ /* */
+flush:
+ if( b_flush_request )
+ DecoderProcessOnFlush( p_dec );
+}
+
+
+/**
+ * The decoding main loop
+ *
+ * \param p_dec the decoder
+ */
+static void *DecoderThread( void *p_data )
+{
+ decoder_t *p_dec = (decoder_t *)p_data;
+ decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
+ /* The decoder's main loop */
+ for( ;; )
+ {
+ block_t *p_block;
+
+ vlc_fifo_Lock( p_owner->p_fifo );
+ vlc_fifo_CleanupPush( p_owner->p_fifo );
+
+ vlc_cond_signal( &p_owner->wait_fifo );
+
+ while( vlc_fifo_IsEmpty( p_owner->p_fifo ) )
+ {
+ if( p_owner->b_draining )
+ { /* We have emptied the FIFO and there is a pending request to
+ * drain. Pass p_block = NULL to decoder just once. */
+ p_owner->b_draining = false;
+ break;
+ }
+
+ p_owner->b_idle = true;
+ vlc_fifo_Wait( p_owner->p_fifo );
+ /* Make sure there is no cancellation point other than this one^^.
+ * If you need one, be sure to push cleanup of p_block. */
+ p_owner->b_idle = false;
+ }
+
+ p_block = vlc_fifo_DequeueUnlocked( p_owner->p_fifo );
+ vlc_cleanup_run();
+
+ int canc = vlc_savecancel();
+ DecoderProcess( p_dec, p_block );
+
+ vlc_mutex_lock( &p_owner->lock );
+ if( p_block == NULL )
+ { /* Draining: the decoder is drained and all decoded buffers are
+ * queued to the output at this point. Now drain the output. */
+ if( p_owner->p_aout != NULL )
+ aout_DecFlush( p_owner->p_aout, true );
+ }
+ p_owner->b_drained = (p_block == NULL);
+
+ vlc_cond_signal( &p_owner->wait_acknowledge );
+ vlc_mutex_unlock( &p_owner->lock );
+ vlc_restorecancel( canc );
+ }
+ return NULL;
+}
+
+/**
+ * Create a decoder object
+ *
+ * \param p_input the input thread
+ * \param p_es the es descriptor
+ * \param b_packetizer instead of a decoder
+ * \return the decoder object
+ */
+static decoder_t * CreateDecoder( vlc_object_t *p_parent,
+ input_thread_t *p_input,
+ const es_format_t *fmt, bool b_packetizer,
+ input_resource_t *p_resource,
+ sout_instance_t *p_sout )
+{
+ decoder_t *p_dec;
+ decoder_owner_sys_t *p_owner;
+ es_format_t null_es_format;
+
+ p_dec = vlc_custom_create( p_parent, sizeof( *p_dec ), "decoder" );
+ if( p_dec == NULL )
+ return NULL;
+
+ p_dec->pf_decode_audio = NULL;
+ p_dec->pf_decode_video = NULL;
+ p_dec->pf_decode_sub = NULL;
+ p_dec->pf_get_cc = NULL;
+ p_dec->pf_packetize = NULL;
+
+ /* Initialize the decoder */
+ p_dec->p_module = NULL;
+
+ memset( &null_es_format, 0, sizeof(es_format_t) );
+ es_format_Copy( &p_dec->fmt_in, fmt );
+ es_format_Copy( &p_dec->fmt_out, &null_es_format );
+
+ p_dec->p_description = NULL;
+
+ /* Allocate our private structure for the decoder */
+ p_dec->p_owner = p_owner = malloc( sizeof( decoder_owner_sys_t ) );
+ if( unlikely(p_owner == NULL) )
+ {
+ vlc_object_release( p_dec );
+ return NULL;
+ }
+ p_owner->i_preroll_end = VLC_TS_INVALID;
+ p_owner->i_last_rate = INPUT_RATE_DEFAULT;
+ p_owner->p_input = p_input;
+ p_owner->p_resource = p_resource;
+ p_owner->p_aout = NULL;
+ p_owner->p_vout = NULL;
+ p_owner->p_spu_vout = NULL;
+ p_owner->i_spu_channel = 0;
+ p_owner->i_spu_order = 0;
+ p_owner->p_sout = p_sout;
+ p_owner->p_sout_input = NULL;
+ p_owner->p_packetizer = NULL;
+ p_owner->b_packetizer = b_packetizer;
+ es_format_Init( &p_owner->fmt, UNKNOWN_ES, 0 );
+
+ /* decoder fifo */
+ p_owner->p_fifo = block_FifoNew();
+ if( unlikely(p_owner->p_fifo == NULL) )
+ {
+ free( p_owner );
+ vlc_object_release( p_dec );
+ return NULL;
+ }
+
+ /* Set buffers allocation callbacks for the decoders */
+ p_dec->pf_aout_format_update = aout_update_format;
+ p_dec->pf_vout_format_update = vout_update_format;
+ p_dec->pf_vout_buffer_new = vout_new_buffer;
+ p_dec->pf_spu_buffer_new = spu_new_buffer;
+ /* */
+ p_dec->pf_get_attachments = DecoderGetInputAttachments;
+ p_dec->pf_get_display_date = DecoderGetDisplayDate;
+ p_dec->pf_get_display_rate = DecoderGetDisplayRate;
+
+ /* Find a suitable decoder/packetizer module */
+ if( !b_packetizer )
+ p_dec->p_module = module_need( p_dec, "decoder", "$codec", false );
+ else
+ p_dec->p_module = module_need( p_dec, "packetizer", "$packetizer", false );
+
+ /* Check if decoder requires already packetized data */
+ if( !b_packetizer &&
+ p_dec->b_need_packetized && !p_dec->fmt_in.b_packetized )
+ {
+ p_owner->p_packetizer =
+ vlc_custom_create( p_parent, sizeof( decoder_t ), "packetizer" );
+ if( p_owner->p_packetizer )
+ {
+ es_format_Copy( &p_owner->p_packetizer->fmt_in,
+ &p_dec->fmt_in );
+
+ es_format_Copy( &p_owner->p_packetizer->fmt_out,
+ &null_es_format );
+
+ p_owner->p_packetizer->p_module =
+ module_need( p_owner->p_packetizer,
+ "packetizer", "$packetizer", false );
+
+ if( !p_owner->p_packetizer->p_module )
+ {
+ es_format_Clean( &p_owner->p_packetizer->fmt_in );
+ vlc_object_release( p_owner->p_packetizer );
+ p_owner->p_packetizer = NULL;
+ }
+ }
+ }
+
+ /* Copy ourself the input replay gain */
+ if( fmt->i_cat == AUDIO_ES )
+ {
+ for( unsigned i = 0; i < AUDIO_REPLAY_GAIN_MAX; i++ )
+ {
+ if( !p_dec->fmt_out.audio_replay_gain.pb_peak[i] )
+ {
+ p_dec->fmt_out.audio_replay_gain.pb_peak[i] = fmt->audio_replay_gain.pb_peak[i];
+ p_dec->fmt_out.audio_replay_gain.pf_peak[i] = fmt->audio_replay_gain.pf_peak[i];
+ }
+ if( !p_dec->fmt_out.audio_replay_gain.pb_gain[i] )
+ {
+ p_dec->fmt_out.audio_replay_gain.pb_gain[i] = fmt->audio_replay_gain.pb_gain[i];
+ p_dec->fmt_out.audio_replay_gain.pf_gain[i] = fmt->audio_replay_gain.pf_gain[i];
+ }
+ }
+ }
+
+ /* */
+ vlc_mutex_init( &p_owner->lock );
+ vlc_cond_init( &p_owner->wait_request );
+ vlc_cond_init( &p_owner->wait_acknowledge );
+ vlc_cond_init( &p_owner->wait_fifo );
+
+ p_owner->b_fmt_description = false;
+ p_owner->p_description = NULL;
+
+ p_owner->b_paused = false;
+ p_owner->pause.i_date = VLC_TS_INVALID;
+ p_owner->pause.i_ignore = 0;
+
+ p_owner->b_waiting = false;
+ p_owner->b_first = true;
+ p_owner->b_has_data = false;
+
+ p_owner->b_flushing = false;
+ p_owner->b_draining = false;
+ p_owner->b_drained = false;
+ p_owner->b_idle = false;
+
+ /* */
+ p_owner->cc.b_supported = false;
+ if( !b_packetizer )
+ {
+ if( p_owner->p_packetizer && p_owner->p_packetizer->pf_get_cc )
+ p_owner->cc.b_supported = true;
+ if( p_dec->pf_get_cc )
+ p_owner->cc.b_supported = true;
+ }
+
+ for( unsigned i = 0; i < 4; i++ )
+ {
+ p_owner->cc.pb_present[i] = false;
+ p_owner->cc.pp_decoder[i] = NULL;
+ }
+ p_owner->i_ts_delay = 0;
+ return p_dec;
+}
+
+/**
+ * Destroys a decoder object
+ *
+ * \param p_dec the decoder object
+ * \return nothing
+ */
+static void DeleteDecoder( decoder_t * p_dec )
+{
+ decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
+ msg_Dbg( p_dec, "killing decoder fourcc `%4.4s', %u PES in FIFO",
+ (char*)&p_dec->fmt_in.i_codec,
+ (unsigned)block_FifoCount( p_owner->p_fifo ) );
+
+ /* Free all packets still in the decoder fifo. */
+ block_FifoRelease( p_owner->p_fifo );
+
+ /* Cleanup */
+ if( p_owner->p_aout )
+ {
+ /* TODO: REVISIT gap-less audio */
+ aout_DecFlush( p_owner->p_aout, false );
+ aout_DecDelete( p_owner->p_aout );
+ input_resource_PutAout( p_owner->p_resource, p_owner->p_aout );
+ if( p_owner->p_input != NULL )
+ input_SendEventAout( p_owner->p_input );
+ }
+ if( p_owner->p_vout )
+ {
+ /* Hack to make sure all the the pictures are freed by the decoder
+ * and that the vout is not paused anymore */
+ vout_Reset( p_owner->p_vout );
+
+ /* */
+ input_resource_RequestVout( p_owner->p_resource, p_owner->p_vout, NULL,
+ 0, true );
+ if( p_owner->p_input != NULL )
+ input_SendEventVout( p_owner->p_input );
+ }
+
+#ifdef ENABLE_SOUT
+ if( p_owner->p_sout_input )
+ {
+ sout_InputDelete( p_owner->p_sout_input );
+ }
+#endif
+ es_format_Clean( &p_owner->fmt );
+
+ if( p_dec->fmt_out.i_cat == SPU_ES )
+ {
+ vout_thread_t *p_vout = input_resource_HoldVout( p_owner->p_resource );
+ if( p_vout )
+ {
+ if( p_owner->p_spu_vout == p_vout )
+ vout_FlushSubpictureChannel( p_vout, p_owner->i_spu_channel );
+ vlc_object_release( p_vout );
+ }
+ }
+
+ es_format_Clean( &p_dec->fmt_in );
+ es_format_Clean( &p_dec->fmt_out );
+ if( p_dec->p_description )
+ vlc_meta_Delete( p_dec->p_description );
+ if( p_owner->p_description )
+ vlc_meta_Delete( p_owner->p_description );
+
+ if( p_owner->p_packetizer )
+ {
+ module_unneed( p_owner->p_packetizer,
+ p_owner->p_packetizer->p_module );
+ es_format_Clean( &p_owner->p_packetizer->fmt_in );
+ es_format_Clean( &p_owner->p_packetizer->fmt_out );
+ if( p_owner->p_packetizer->p_description )
+ vlc_meta_Delete( p_owner->p_packetizer->p_description );
+ vlc_object_release( p_owner->p_packetizer );
+ }
+
+ vlc_cond_destroy( &p_owner->wait_fifo );
+ vlc_cond_destroy( &p_owner->wait_acknowledge );
+ vlc_cond_destroy( &p_owner->wait_request );
+ vlc_mutex_destroy( &p_owner->lock );
+
+ vlc_object_release( p_dec );
+
+ free( p_owner );
+}
+
+/* */
+static void DecoderUnsupportedCodec( decoder_t *p_dec, vlc_fourcc_t codec )
+{
+ if (codec != VLC_FOURCC('u','n','d','f')) {
+ const char *desc = vlc_fourcc_GetDescription(p_dec->fmt_in.i_cat, codec);
+ if (!desc || !*desc)
+ desc = N_("No description for this codec");
+ msg_Err( p_dec, "Codec `%4.4s' (%s) is not supported.", (char*)&codec, desc );
+ dialog_Fatal( p_dec, _("Codec not supported"),
+ _("VLC could not decode the format \"%4.4s\" (%s)"),
+ (char*)&codec, desc );
+ } else {
+ msg_Err( p_dec, "could not identify codec" );
+ dialog_Fatal( p_dec, _("Unidentified codec"),
+ _("VLC could not identify the audio or video codec" ) );
+ }
+}
+
+/* TODO: pass p_sout through p_resource? -- Courmisch */
+static decoder_t *decoder_New( vlc_object_t *p_parent, input_thread_t *p_input,
+ const es_format_t *fmt, input_clock_t *p_clock,
+ input_resource_t *p_resource,
+ sout_instance_t *p_sout )
+{
+ decoder_t *p_dec = NULL;
+ const char *psz_type = p_sout ? N_("packetizer") : N_("decoder");
+ int i_priority;
+
+ /* Create the decoder configuration structure */
+ p_dec = CreateDecoder( p_parent, p_input, fmt,
+ p_sout != NULL, p_resource, p_sout );
+ if( p_dec == NULL )
+ {
+ msg_Err( p_parent, "could not create %s", psz_type );
+ dialog_Fatal( p_parent, _("Streaming / Transcoding failed"),
+ _("VLC could not open the %s module."),
+ vlc_gettext( psz_type ) );
+ return NULL;
+ }
+
+ if( !p_dec->p_module )
+ {
+ DecoderUnsupportedCodec( p_dec, fmt->i_codec );
+
+ DeleteDecoder( p_dec );
+ return NULL;
+ }
+
+ p_dec->p_owner->p_clock = p_clock;
+ assert( p_dec->fmt_out.i_cat != UNKNOWN_ES );
+
+ if( p_dec->fmt_out.i_cat == AUDIO_ES )
+ i_priority = VLC_THREAD_PRIORITY_AUDIO;
+ else
+ i_priority = VLC_THREAD_PRIORITY_VIDEO;
+
+ /* Spawn the decoder thread */
+ if( vlc_clone( &p_dec->p_owner->thread, DecoderThread, p_dec, i_priority ) )
+ {
+ msg_Err( p_dec, "cannot spawn decoder thread" );
+ module_unneed( p_dec, p_dec->p_module );
+ DeleteDecoder( p_dec );
+ return NULL;
+ }
+
+ return p_dec;
+}
+
+
+/**
+ * Spawns a new decoder thread from the input thread
+ *
+ * \param p_input the input thread
+ * \param p_es the es descriptor
+ * \return the spawned decoder object
+ */
+decoder_t *input_DecoderNew( input_thread_t *p_input,
+ es_format_t *fmt, input_clock_t *p_clock,
+ sout_instance_t *p_sout )
+{
+ return decoder_New( VLC_OBJECT(p_input), p_input, fmt, p_clock,
+ p_input->p->p_resource, p_sout );
+}
+
+/**
+ * Spawn a decoder thread outside of the input thread.
+ */
+decoder_t *input_DecoderCreate( vlc_object_t *p_parent, const es_format_t *fmt,
+ input_resource_t *p_resource )
+{
+ return decoder_New( p_parent, NULL, fmt, NULL, p_resource, NULL );
+}
+
+
+/**
+ * Kills a decoder thread and waits until it's finished
+ *
+ * \param p_input the input thread
+ * \param p_es the es descriptor
+ * \return nothing
+ */
+void input_DecoderDelete( decoder_t *p_dec )
+{
+ decoder_owner_sys_t *p_owner = p_dec->p_owner;
+
+ vlc_cancel( p_owner->thread );
+
+ /* Make sure we aren't paused/waiting/decoding anymore */
+ vlc_mutex_lock( &p_owner->lock );
+ p_owner->b_paused = false;
+ p_owner->b_waiting = false;
+ p_owner->b_flushing = true;
+ vlc_cond_signal( &p_owner->wait_request );
+ vlc_mutex_unlock( &p_owner->lock );
+
+ vlc_join( p_owner->thread, NULL );
+
+ module_unneed( p_dec, p_dec->p_module );
+
+ /* */
+ if( p_dec->p_owner->cc.b_supported )
+ {
+ int i;
+ for( i = 0; i < 4; i++ )
+ input_DecoderSetCcState( p_dec, false, i );
+ }
+
+ /* Delete decoder */
+ DeleteDecoder( p_dec );