1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: copy.c,v 1.2 2003/01/08 10:26:49 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Eric Petit <titer@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
30 #include <vlc/decoder.h>
31 #include <vlc/input.h>
34 #include <stdlib.h> /* malloc(), free() */
35 #include <string.h> /* strdup() */
37 /*****************************************************************************
39 *****************************************************************************/
40 typedef struct packetizer_thread_s
42 /* Input properties */
43 decoder_fifo_t *p_fifo;
45 /* Output properties */
46 sout_input_t *p_sout_input;
47 sout_packet_format_t output_format;
51 } packetizer_thread_t;
53 static int Open ( vlc_object_t * );
54 static int Run ( decoder_fifo_t * );
56 static int InitThread ( packetizer_thread_t * );
57 static void PacketizeThread ( packetizer_thread_t * );
58 static void EndThread ( packetizer_thread_t * );
61 static void input_ShowPES( decoder_fifo_t *p_fifo, pes_packet_t **pp_pes );
63 /*****************************************************************************
65 *****************************************************************************/
68 set_description( _("Copy packetizer") );
69 set_capability( "packetizer", 0 );
70 set_callbacks( Open, NULL );
74 /*****************************************************************************
75 * OpenDecoder: probe the packetizer and return score
76 *****************************************************************************
77 * Tries to launch a decoder and return score so that the interface is able
79 *****************************************************************************/
80 static int Open( vlc_object_t *p_this )
82 decoder_fifo_t *p_fifo = (decoder_fifo_t*) p_this;
89 if( p_fifo->i_fourcc == VLC_FOURCC( 'm', 'p', 'g', 'a') )
94 /*****************************************************************************
95 * RunDecoder: this function is called just after the thread is created
96 *****************************************************************************/
97 static int Run( decoder_fifo_t *p_fifo )
99 packetizer_thread_t *p_pack;
102 msg_Info( p_fifo, "Running copy packetizer" );
103 if( !( p_pack = malloc( sizeof( packetizer_thread_t ) ) ) )
105 msg_Err( p_fifo, "out of memory" );
106 DecoderError( p_fifo );
109 memset( p_pack, 0, sizeof( packetizer_thread_t ) );
111 p_pack->p_fifo = p_fifo;
113 if( InitThread( p_pack ) != 0 )
115 DecoderError( p_fifo );
119 while( ( !p_pack->p_fifo->b_die )&&( !p_pack->p_fifo->b_error ) )
121 PacketizeThread( p_pack );
125 if( ( b_error = p_pack->p_fifo->b_error ) )
127 DecoderError( p_pack->p_fifo );
140 #define FREE( p ) if( p ) free( p ); p = NULL
142 /*****************************************************************************
143 * InitThread: initialize data before entering main loop
144 *****************************************************************************/
146 static int InitThread( packetizer_thread_t *p_pack )
149 switch( p_pack->p_fifo->i_fourcc )
151 case VLC_FOURCC( 'm', 'p', '4', 'v'):
152 case VLC_FOURCC( 'D', 'I', 'V', 'X'):
153 case VLC_FOURCC( 'd', 'i', 'v', 'x'):
154 case VLC_FOURCC( 'X', 'V', 'I', 'D'):
155 case VLC_FOURCC( 'X', 'v', 'i', 'D'):
156 case VLC_FOURCC( 'x', 'v', 'i', 'd'):
157 case VLC_FOURCC( 'D', 'X', '5', '0'):
158 p_pack->output_format.i_fourcc = VLC_FOURCC( 'm', 'p', '4', 'v');
159 p_pack->output_format.i_cat = VIDEO_ES;
161 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
162 case VLC_FOURCC( 'm', 'p', 'g', '1' ):
163 case VLC_FOURCC( 'm', 'p', 'g', '2' ):
164 p_pack->output_format.i_fourcc = VLC_FOURCC( 'm', 'p', 'g', 'v' );
165 p_pack->output_format.i_cat = VIDEO_ES;
167 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
168 p_pack->output_format.i_fourcc = VLC_FOURCC( 'm', 'p', 'g', 'a' );
169 p_pack->output_format.i_cat = AUDIO_ES;
172 p_pack->output_format.i_fourcc = p_pack->p_fifo->i_fourcc;
173 p_pack->output_format.i_cat = UNKNOWN_ES;
177 p_pack->p_sout_input =
178 sout_InputNew( p_pack->p_fifo,
179 &p_pack->output_format );
181 if( !p_pack->p_sout_input )
183 msg_Err( p_pack->p_fifo, "cannot add a new stream" );
186 p_pack->i_pts_start = -1;
190 /*****************************************************************************
191 * PacketizeThread: packetize an unit (here copy a complete pes)
192 *****************************************************************************/
193 static void PacketizeThread( packetizer_thread_t *p_pack )
195 sout_buffer_t *p_sout_buffer;
199 /* **** get samples count **** */
200 input_ExtractPES( p_pack->p_fifo, &p_pes );
203 p_pack->p_fifo->b_error = 1;
206 if( p_pack->i_pts_start < 0 && p_pes->i_pts > 0 )
208 p_pack->i_pts_start = p_pes->i_pts;
210 i_size = p_pes->i_pes_size;
211 // msg_Dbg( p_pack->p_fifo, "pes size:%d", i_size );
214 pes_packet_t *p_pes_next;
215 data_packet_t *p_data;
219 sout_BufferNew( p_pack->p_sout_input->p_sout, i_size );
222 p_pack->p_fifo->b_error = 1;
225 /* TODO: memcpy of the pes packet */
226 for( i_buffer = 0, p_data = p_pes->p_first;
227 p_data != NULL && i_buffer < i_size;
228 p_data = p_data->p_next)
232 i_copy = __MIN( p_data->p_payload_end - p_data->p_payload_start,
236 p_pack->p_fifo->p_vlc->pf_memcpy( p_sout_buffer->p_buffer + i_buffer,
237 p_data->p_payload_start,
242 p_sout_buffer->i_length = 0;
243 p_sout_buffer->i_dts = p_pes->i_pts - p_pack->i_pts_start;
244 p_sout_buffer->i_pts = p_pes->i_pts - p_pack->i_pts_start;
245 p_sout_buffer->i_bitrate = 0;
247 input_ShowPES( p_pack->p_fifo, &p_pes_next );
250 p_sout_buffer->i_length = p_pes_next->i_pts - p_pes->i_pts;
252 sout_InputSendBuffer( p_pack->p_sout_input,
256 input_DeletePES( p_pack->p_fifo->p_packets_mgt, p_pes );
260 /*****************************************************************************
261 * EndThread : packetizer thread destruction
262 *****************************************************************************/
263 static void EndThread ( packetizer_thread_t *p_pack)
265 if( p_pack->p_sout_input )
267 sout_InputDelete( p_pack->p_sout_input );
271 static void input_ShowPES( decoder_fifo_t *p_fifo, pes_packet_t **pp_pes )
275 vlc_mutex_lock( &p_fifo->data_lock );
277 if( p_fifo->p_first == NULL )
281 vlc_mutex_unlock( &p_fifo->data_lock );
282 if( pp_pes ) *pp_pes = NULL;
286 /* Signal the input thread we're waiting. This is only
287 * needed in case of slave clock (ES plug-in) but it won't
289 vlc_cond_signal( &p_fifo->data_wait );
291 /* Wait for the input to tell us when we received a packet. */
292 vlc_cond_wait( &p_fifo->data_wait, &p_fifo->data_lock );
294 p_pes = p_fifo->p_first;
295 vlc_mutex_unlock( &p_fifo->data_lock );