* input_dec.c: Functions for the management of decoders
*****************************************************************************
* Copyright (C) 1999-2001 VideoLAN
- * $Id: input_dec.c,v 1.27 2002/02/19 00:50:19 sam Exp $
+ * $Id: input_dec.c,v 1.64 2003/10/08 21:01:07 gbazin Exp $
*
* Authors: Christophe Massiot <massiot@via.ecp.fr>
*
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*****************************************************************************/
#include <stdlib.h>
#include <string.h> /* memcpy(), memset() */
-#include <sys/types.h> /* off_t */
-#include <videolan/vlc.h>
+#include <vlc/vlc.h>
+#include <vlc/decoder.h>
-#include "stream_control.h"
-#include "input_ext-dec.h"
#include "input_ext-intf.h"
#include "input_ext-plugins.h"
-static decoder_config_t * CreateDecoderConfig( input_thread_t * p_input,
- es_descriptor_t * p_es );
-static void DeleteDecoderConfig( decoder_config_t * p_config );
+static decoder_t * CreateDecoder( input_thread_t *, es_descriptor_t * );
+static int DecoderThread( decoder_t * );
+static void DeleteDecoder( decoder_t * );
/*****************************************************************************
* input_RunDecoder: spawns a new decoder thread
*****************************************************************************/
-vlc_thread_t input_RunDecoder( input_thread_t * p_input,
- es_descriptor_t * p_es )
+decoder_fifo_t * input_RunDecoder( input_thread_t * p_input,
+ es_descriptor_t * p_es )
{
- vlc_thread_t thread_id;
- char * psz_plugin = NULL;
+ vlc_value_t val;
+ decoder_t *p_dec;
+ int i_priority;
- if( p_es->i_type == MPEG1_AUDIO_ES || p_es->i_type == MPEG2_AUDIO_ES )
+ /* Create the decoder configuration structure */
+ p_dec = CreateDecoder( p_input, p_es );
+ if( p_dec == NULL )
{
- psz_plugin = main_GetPszVariable( ADEC_MPEG_VAR, NULL );
+ msg_Err( p_input, "could not create decoder" );
+ return NULL;
}
- if( p_es->i_type == AC3_AUDIO_ES )
+
+ p_dec->p_module = NULL;
+
+ /* If we are in sout mode, search for packetizer module */
+ var_Get( p_input, "sout", &val );
+ if( !p_es->b_force_decoder && val.psz_string && *val.psz_string )
{
- psz_plugin = main_GetPszVariable( ADEC_AC3_VAR, NULL );
- }
+ free( val.psz_string );
+ val.b_bool = VLC_TRUE;
+
+ if( p_es->i_cat == AUDIO_ES )
+ {
+ var_Get( p_input, "sout-audio", &val );
+ }
+ else if( p_es->i_cat == VIDEO_ES )
+ {
+ var_Get( p_input, "sout-video", &val );
+ }
- /* Get a suitable module */
- p_es->p_module = module_Need( MODULE_CAPABILITY_DECODER, psz_plugin,
- (void *)&p_es->i_type );
- if( p_es->p_module == NULL )
+ if( val.b_bool )
+ {
+ p_dec->p_module =
+ module_Need( p_dec, "packetizer", "$packetizer" );
+ }
+ }
+ else
{
- intf_ErrMsg( "input error: no suitable decoder module for type 0x%x",
- p_es->i_type );
- return( 0 );
+ /* default Get a suitable decoder module */
+ p_dec->p_module = module_Need( p_dec, "decoder", "$codec" );
+
+ if( val.psz_string ) free( val.psz_string );
}
- /* Create the decoder configuration structure */
- p_es->p_config = CreateDecoderConfig( p_input, p_es );
+ if( p_dec->p_module == NULL )
+ {
+ msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
+ "VLC probably does not support this sound or video format.",
+ (char*)&p_dec->p_fifo->i_fourcc );
- if( p_es->p_config == NULL )
+ DeleteDecoder( p_dec );
+ vlc_object_destroy( p_dec );
+ return NULL;
+ }
+
+ if ( p_es->i_cat == AUDIO_ES )
+ {
+ i_priority = VLC_THREAD_PRIORITY_AUDIO;
+ }
+ else
{
- intf_ErrMsg( "input error: could not create decoder config" );
- module_Unneed( p_es->p_module );
- return( 0 );
+ i_priority = VLC_THREAD_PRIORITY_VIDEO;
}
/* Spawn the decoder thread */
- if ( vlc_thread_create( &thread_id, "decoder",
- (vlc_thread_func_t)p_es->p_module->
- p_functions->dec.functions.dec.pf_run,
- (void *)p_es->p_config) )
+ if( vlc_thread_create( p_dec, "decoder", DecoderThread,
+ i_priority, VLC_FALSE ) )
{
- intf_ErrMsg( "input error: can't spawn decoder thread \"%s\"",
- p_es->p_module->psz_name );
- free( p_es->p_config );
- module_Unneed( p_es->p_module );
- return( 0 );
+ msg_Err( p_dec, "cannot spawn decoder thread \"%s\"",
+ p_dec->p_module->psz_object_name );
+ module_Unneed( p_dec, p_dec->p_module );
+ DeleteDecoder( p_dec );
+ vlc_object_destroy( p_dec );
+ return NULL;
}
- return thread_id;
-}
+ p_input->stream.b_changed = 1;
+ return p_dec->p_fifo;
+}
/*****************************************************************************
* input_EndDecoder: kills a decoder thread and waits until it's finished
void input_EndDecoder( input_thread_t * p_input, es_descriptor_t * p_es )
{
int i_dummy;
+ decoder_t *p_dec = p_es->p_decoder_fifo->p_dec;
p_es->p_decoder_fifo->b_die = 1;
/* Waiting for the thread to exit */
/* I thought that unlocking was better since thread join can be long
* but it actually creates late pictures and freezes --stef */
-// vlc_mutex_unlock( &p_input->stream.stream_lock );
- vlc_thread_join( p_es->thread_id );
-// vlc_mutex_lock( &p_input->stream.stream_lock );
+ /* vlc_mutex_unlock( &p_input->stream.stream_lock ); */
+ vlc_thread_join( p_dec );
+ /* vlc_mutex_lock( &p_input->stream.stream_lock ); */
+
+ /* Unneed module */
+ module_Unneed( p_dec, p_dec->p_module );
/* Delete decoder configuration */
- DeleteDecoderConfig( p_es->p_config );
+ DeleteDecoder( p_dec );
- /* Unneed module */
- module_Unneed( p_es->p_module );
+ /* Delete the decoder */
+ vlc_object_destroy( p_dec );
/* Tell the input there is no more decoder */
p_es->p_decoder_fifo = NULL;
+
+ p_input->stream.b_changed = 1;
}
/*****************************************************************************
vlc_mutex_unlock( &p_decoder_fifo->data_lock );
}
+/*****************************************************************************
+ * Create a NULL packet for padding in case of a data loss
+ *****************************************************************************/
+void input_NullPacket( input_thread_t * p_input,
+ es_descriptor_t * p_es )
+{
+ data_packet_t * p_pad_data;
+ pes_packet_t * p_pes;
+
+ if( (p_pad_data = input_NewPacketForce( p_input->p_method_data,
+ PADDING_PACKET_SIZE)) == NULL )
+ {
+ msg_Err( p_input, "no new packet" );
+ p_input->b_error = 1;
+ return;
+ }
+
+ memset( p_pad_data->p_payload_start, 0, PADDING_PACKET_SIZE );
+ p_pad_data->b_discard_payload = 1;
+ p_pes = p_es->p_pes;
+
+ if( p_pes != NULL )
+ {
+ p_pes->b_discontinuity = 1;
+ p_pes->p_last->p_next = p_pad_data;
+ p_pes->p_last = p_pad_data;
+ p_pes->i_nb_data++;
+ }
+ else
+ {
+ if( (p_pes = input_NewPES( p_input->p_method_data )) == NULL )
+ {
+ msg_Err( p_input, "no PES packet" );
+ p_input->b_error = 1;
+ return;
+ }
+
+ p_pes->i_rate = p_input->stream.control.i_rate;
+ p_pes->p_first = p_pes->p_last = p_pad_data;
+ p_pes->i_nb_data = 1;
+ p_pes->b_discontinuity = 1;
+ input_DecodePES( p_es->p_decoder_fifo, p_pes );
+ }
+}
+
/*****************************************************************************
* input_EscapeDiscontinuity: send a NULL packet to the decoders
*****************************************************************************/
-void input_EscapeDiscontinuity( input_thread_t * p_input,
- pgrm_descriptor_t * p_pgrm )
+void input_EscapeDiscontinuity( input_thread_t * p_input )
{
- int i_es, i;
+ unsigned int i_es, i;
- for( i_es = 0; i_es < p_pgrm->i_es_number; i_es++ )
+ for( i_es = 0; i_es < p_input->stream.i_selected_es_number; i_es++ )
{
- es_descriptor_t * p_es = p_pgrm->pp_es[i_es];
+ es_descriptor_t * p_es = p_input->stream.pp_selected_es[i_es];
if( p_es->p_decoder_fifo != NULL )
{
*****************************************************************************/
void input_EscapeAudioDiscontinuity( input_thread_t * p_input )
{
- int i_pgrm, i_es, i;
+ unsigned int i_es, i;
- for( i_pgrm = 0; i_pgrm < p_input->stream.i_pgrm_number; i_pgrm++ )
+ for( i_es = 0; i_es < p_input->stream.i_selected_es_number; i_es++ )
{
- pgrm_descriptor_t * p_pgrm = p_input->stream.pp_programs[i_pgrm];
+ es_descriptor_t * p_es = p_input->stream.pp_selected_es[i_es];
- for( i_es = 0; i_es < p_pgrm->i_es_number; i_es++ )
+ if( p_es->p_decoder_fifo != NULL && p_es->i_cat == AUDIO_ES )
{
- es_descriptor_t * p_es = p_pgrm->pp_es[i_es];
-
- if( p_es->p_decoder_fifo != NULL && p_es->b_audio )
+ for( i = 0; i < PADDING_PACKET_NUMBER; i++ )
{
- for( i = 0; i < PADDING_PACKET_NUMBER; i++ )
- {
- input_NullPacket( p_input, p_es );
- }
+ input_NullPacket( p_input, p_es );
}
}
}
}
/*****************************************************************************
- * CreateDecoderConfig: create a decoder_config_t
+ * CreateDecoderFifo: create a decoder_fifo_t
*****************************************************************************/
-static decoder_config_t * CreateDecoderConfig( input_thread_t * p_input,
- es_descriptor_t * p_es )
+static decoder_t * CreateDecoder( input_thread_t * p_input,
+ es_descriptor_t * p_es )
{
- decoder_config_t * p_config;
+ decoder_t * p_dec;
- p_config = (decoder_config_t *)malloc( sizeof(decoder_config_t) );
- if( p_config == NULL )
+ p_dec = vlc_object_create( p_input, VLC_OBJECT_DECODER );
+ if( p_dec == NULL )
{
- intf_ErrMsg( "Unable to allocate memory in CreateDecoderConfig" );
+ msg_Err( p_input, "out of memory" );
return NULL;
}
- /* Decoder FIFO */
- if( (p_config->p_decoder_fifo =
- (decoder_fifo_t *)malloc( sizeof(decoder_fifo_t) )) == NULL )
+ p_dec->pf_init = 0;
+ p_dec->pf_decode = 0;
+ p_dec->pf_end = 0;
+ p_dec->pf_run = 0;
+
+ /* Select a new ES */
+ INSERT_ELEM( p_input->stream.pp_selected_es,
+ p_input->stream.i_selected_es_number,
+ p_input->stream.i_selected_es_number,
+ p_es );
+
+ /* Allocate the memory needed to store the decoder's fifo */
+ //p_dec->p_fifo = (decoder_fifo_t *)malloc(sizeof(decoder_fifo_t));
+ p_dec->p_fifo = vlc_object_create( p_input, VLC_OBJECT_DECODER_FIFO );
+ if( p_dec->p_fifo == NULL )
{
- intf_ErrMsg( "Out of memory" );
- free( p_config );
+ msg_Err( p_input, "out of memory" );
return NULL;
}
- /* Select a new ES */
- p_input->stream.i_selected_es_number++;
- p_input->stream.pp_selected_es = realloc(
- p_input->stream.pp_selected_es,
- p_input->stream.i_selected_es_number
- * sizeof(es_descriptor_t *) );
- if( p_input->stream.pp_selected_es == NULL )
+ /* Initialize the decoder fifo */
+ //memset( p_dec->p_fifo, 0, sizeof(decoder_fifo_t) );
+ p_dec->p_module = NULL;
+
+ /* Initialize the p_fifo structure */
+ vlc_mutex_init( p_input, &p_dec->p_fifo->data_lock );
+ vlc_cond_init( p_input, &p_dec->p_fifo->data_wait );
+ p_es->p_decoder_fifo = p_dec->p_fifo;
+
+ p_dec->p_fifo->i_id = p_es->i_id;
+ p_dec->p_fifo->i_fourcc = p_es->i_fourcc;
+ p_dec->p_fifo->p_demux_data = p_es->p_demux_data;
+ p_dec->p_fifo->p_waveformatex = p_es->p_waveformatex;
+ p_dec->p_fifo->p_bitmapinfoheader = p_es->p_bitmapinfoheader;
+ p_dec->p_fifo->p_stream_ctrl = &p_input->stream.control;
+ p_dec->p_fifo->p_sout = p_input->stream.p_sout;
+
+ p_dec->p_fifo->p_first = NULL;
+ p_dec->p_fifo->pp_last = &p_dec->p_fifo->p_first;
+ p_dec->p_fifo->i_depth = 0;
+ p_dec->p_fifo->b_die = p_dec->p_fifo->b_error = 0;
+ p_dec->p_fifo->p_packets_mgt = p_input->p_method_data;
+
+ p_dec->p_fifo->p_dec = p_dec;
+
+ vlc_object_attach( p_dec->p_fifo, p_input );
+ vlc_object_attach( p_dec, p_input );
+
+ return p_dec;
+}
+
+/*****************************************************************************
+ * DecoderThread: the decoding main loop
+ *****************************************************************************/
+static int DecoderThread( decoder_t * p_dec )
+{
+ pes_packet_t *p_pes;
+ data_packet_t *p_data;
+ block_t *p_block;
+
+ /* Temporary wrapper to keep old decoder api functional */
+ if( p_dec->pf_run )
{
- intf_ErrMsg( "Unable to realloc memory" );
- free( p_config->p_decoder_fifo );
- free( p_config );
- return NULL;
+ p_dec->pf_run( p_dec->p_fifo );
+ return 0;
}
- p_input->stream.pp_selected_es[p_input->stream.i_selected_es_number - 1]
- = p_es;
-
- /* Initialize the p_config structure */
- vlc_mutex_init(&p_config->p_decoder_fifo->data_lock);
- vlc_cond_init(&p_config->p_decoder_fifo->data_wait);
- p_es->p_decoder_fifo = p_config->p_decoder_fifo;
-
- p_config->i_id = p_es->i_id;
- p_config->i_type = p_es->i_type;
- p_config->p_stream_ctrl = &p_input->stream.control;
-
- p_config->p_decoder_fifo->p_first = NULL;
- p_config->p_decoder_fifo->pp_last = &p_config->p_decoder_fifo->p_first;
- p_config->p_decoder_fifo->i_depth = 0;
- p_config->p_decoder_fifo->b_die = p_config->p_decoder_fifo->b_error = 0;
- p_config->p_decoder_fifo->p_packets_mgt = p_input->p_method_data;
- p_config->p_decoder_fifo->pf_delete_pes = p_input->pf_delete_pes;
-
- return p_config;
+
+
+ /* Initialize the decoder */
+ p_dec->p_fifo->b_error = p_dec->pf_init( p_dec );
+
+ /* The decoder's main loop */
+ while( !p_dec->p_fifo->b_die && !p_dec->p_fifo->b_error )
+ {
+ int i_size;
+
+ input_ExtractPES( p_dec->p_fifo, &p_pes );
+ if( !p_pes )
+ {
+ p_dec->p_fifo->b_error = 1;
+ break;
+ }
+
+ for( i_size = 0, p_data = p_pes->p_first;
+ p_data != NULL; p_data = p_data->p_next )
+ {
+ i_size += p_data->p_payload_end - p_data->p_payload_start;
+ }
+ p_block = block_New( p_dec, i_size );
+ for( i_size = 0, p_data = p_pes->p_first;
+ p_data != NULL; p_data = p_data->p_next )
+ {
+ if( p_data->p_payload_end == p_data->p_payload_start )
+ continue;
+ memcpy( p_block->p_buffer + i_size, p_data->p_payload_start,
+ p_data->p_payload_end - p_data->p_payload_start );
+ i_size += p_data->p_payload_end - p_data->p_payload_start;
+ }
+
+ p_block->i_pts = p_pes->i_pts;
+ p_block->i_dts = p_pes->i_dts;
+ p_block->b_discontinuity = p_pes->b_discontinuity;
+ p_dec->p_fifo->b_error = p_dec->pf_decode( p_dec, p_block );
+
+ input_DeletePES( p_dec->p_fifo->p_packets_mgt, p_pes );
+ }
+
+ /* If b_error is set, the decoder thread enters the error loop */
+ if( p_dec->p_fifo->b_error )
+ {
+ /* Wait until a `die' order is sent */
+ while( !p_dec->p_fifo->b_die )
+ {
+ /* Trash all received PES packets */
+ input_ExtractPES( p_dec->p_fifo, NULL );
+ }
+ }
+
+ /* End of the decoder */
+ p_dec->pf_end( p_dec );
+
+ return 0;
}
/*****************************************************************************
- * DeleteDecoderConfig: create a decoder_config_t
+ * DeleteDecoderFifo: destroy a decoder_fifo_t
*****************************************************************************/
-static void DeleteDecoderConfig( decoder_config_t * p_config )
+static void DeleteDecoder( decoder_t * p_dec )
{
- intf_StatMsg( "input stats: killing decoder for 0x%x, type 0x%x, %d PES in FIFO",
- p_config->i_id, p_config->i_type,
- p_config->p_decoder_fifo->i_depth );
+ vlc_object_detach( p_dec );
+ vlc_object_detach( p_dec->p_fifo );
+
+ msg_Dbg( p_dec,
+ "killing decoder for 0x%x, fourcc `%4.4s', %d PES in FIFO",
+ p_dec->p_fifo->i_id, (char*)&p_dec->p_fifo->i_fourcc,
+ p_dec->p_fifo->i_depth );
+
/* Free all packets still in the decoder fifo. */
- p_config->p_decoder_fifo->pf_delete_pes(
- p_config->p_decoder_fifo->p_packets_mgt,
- p_config->p_decoder_fifo->p_first );
+ input_DeletePES( p_dec->p_fifo->p_packets_mgt,
+ p_dec->p_fifo->p_first );
/* Destroy the lock and cond */
- vlc_cond_destroy( &p_config->p_decoder_fifo->data_wait );
- vlc_mutex_destroy( &p_config->p_decoder_fifo->data_lock );
+ vlc_cond_destroy( &p_dec->p_fifo->data_wait );
+ vlc_mutex_destroy( &p_dec->p_fifo->data_lock );
- free( p_config->p_decoder_fifo );
-
- free( p_config );
+ /* Free fifo */
+ vlc_object_destroy( p_dec->p_fifo );
+ //free( p_dec->p_fifo );
}
-
projects / vlc / blobdiff