/*****************************************************************************
* vpar_motion.c : motion vectors parsing
- * (c)1999 VideoLAN
+ *****************************************************************************
+ * Copyright (C) 1999, 2000 VideoLAN
+ *
+ * Authors:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * 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
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <errno.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/uio.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/XShm.h>
+#include "defs.h"
+
+#include <stdlib.h> /* free() */
+#include <sys/types.h> /* on BSD, uio.h needs types.h */
+#include <sys/uio.h> /* "input.h" */
#include "config.h"
#include "common.h"
+#include "threads.h"
#include "mtime.h"
-#include "vlc_thread.h"
+#include "plugins.h"
#include "intf_msg.h"
-#include "debug.h" /* ?? temporaire, requis par netlist.h */
#include "input.h"
-#include "input_netlist.h"
#include "decoder_fifo.h"
#include "video.h"
#include "video_output.h"
#include "vpar_blocks.h"
#include "vpar_headers.h"
-#include "video_fifo.h"
#include "vpar_synchro.h"
#include "video_parser.h"
+#define MAX_COUNT 3
+
/*
* Local prototypes
*/
+#ifdef SAM_SYNCHRO
+
+/*****************************************************************************
+ * vpar_SynchroUpdateStructures : Update the synchro structures
+ *****************************************************************************/
+void vpar_SynchroUpdateStructures( vpar_thread_t * p_vpar,
+ int i_coding_type, boolean_t b_kept )
+{
+ double i_can_display;
+ mtime_t i_pts;
+ pes_packet_t * p_pes = p_vpar->bit_stream.p_decoder_fifo->buffer[
+ p_vpar->bit_stream.p_decoder_fifo->i_start ];
+
+ /* try to guess the current DTS and PTS */
+ if( p_pes->b_has_pts )
+ {
+ i_pts = p_pes->i_pts;
+
+ /* if the image is I type, then the presentation timestamp is
+ * the PTS of the PES. Otherwise, we calculate it with the
+ * theorical framerate value */
+ if( i_coding_type == I_CODING_TYPE )
+ {
+ p_vpar->synchro.i_last_pts = p_pes->i_pts;
+ }
+ else
+ {
+ p_vpar->synchro.i_last_pts += p_vpar->synchro.i_theorical_delay;
+ }
+
+ p_pes->b_has_pts = 0;
+ }
+ else
+ {
+ p_vpar->synchro.i_last_pts += p_vpar->synchro.i_theorical_delay;
+ i_pts = p_vpar->synchro.i_last_pts;
+ }
+
+ /* update structures */
+ switch(i_coding_type)
+ {
+ case P_CODING_TYPE:
+
+ p_vpar->synchro.i_P_seen++;
+ if( b_kept ) p_vpar->synchro.i_P_kept++;
+ break;
+
+ case B_CODING_TYPE:
+ p_vpar->synchro.i_B_seen++;
+ if( b_kept ) p_vpar->synchro.i_B_kept++;
+ break;
+
+ case I_CODING_TYPE:
+
+ /* update the last I PTS we have, we need it to
+ * calculate the theorical framerate */
+ if (i_pts != p_vpar->synchro.i_last_seen_I_pts)
+ {
+ if ( p_vpar->synchro.i_last_seen_I_pts )
+ {
+ p_vpar->synchro.i_theorical_delay =
+ ( i_pts - p_vpar->synchro.i_last_seen_I_pts )
+ / ( 1 + p_vpar->synchro.i_B_seen
+ + p_vpar->synchro.i_P_seen);
+ }
+ p_vpar->synchro.i_last_seen_I_pts = i_pts;
+ }
+
+ /* now we calculated all statistics, it's time to
+ * decide what we have the time to display */
+ i_can_display = (float)(i_pts - p_vpar->synchro.i_last_kept_I_pts)
+ / p_vpar->synchro.i_delay;
+
+ p_vpar->synchro.b_all_I = 0;
+ p_vpar->synchro.b_all_B = 0;
+ p_vpar->synchro.b_all_P = 0;
+ p_vpar->synchro.displayable_p = 0;
+ p_vpar->synchro.displayable_b = 0;
+
+ if( ( p_vpar->synchro.b_all_I = ( i_can_display > 1 ) ) )
+ {
+ i_can_display -= 1;
+
+ if( !( p_vpar->synchro.b_all_P
+ = ( i_can_display > p_vpar->synchro.i_P_seen ) ) )
+ {
+ p_vpar->synchro.displayable_p = i_can_display;
+ }
+ else
+ {
+ i_can_display -= p_vpar->synchro.i_P_seen;
+
+ if( !( p_vpar->synchro.b_all_B
+ = ( i_can_display > p_vpar->synchro.i_B_seen ) ) )
+ {
+ p_vpar->synchro.displayable_b = i_can_display;
+ }
+ }
+ }
+
+#if 1
+ if( p_vpar->synchro.b_all_I )
+ intf_ErrMsg( " I: 1/1 " );
+ if( p_vpar->synchro.b_all_P )
+ intf_ErrMsg( "P: %i/%i ", p_vpar->synchro.i_P_seen,
+ p_vpar->synchro.i_P_seen );
+ else if( p_vpar->synchro.displayable_p > 0 )
+ intf_ErrMsg( "P: %.2f/%i ", p_vpar->synchro.displayable_p,
+ p_vpar->synchro.i_P_seen );
+ if( p_vpar->synchro.b_all_B )
+ intf_ErrMsg( "B: %i/%i", p_vpar->synchro.i_B_seen,
+ p_vpar->synchro.i_B_seen );
+ else if( p_vpar->synchro.displayable_b > 0 )
+ intf_ErrMsg( "B: %.2f/%i", p_vpar->synchro.displayable_b,
+ p_vpar->synchro.i_B_seen );
+ intf_ErrMsg( " \r" );
+#endif
+ p_vpar->synchro.i_P_seen = 0;
+ p_vpar->synchro.i_B_seen = 0;
+
+ /* update some values */
+ if( b_kept )
+ {
+ p_vpar->synchro.i_last_kept_I_pts = i_pts;
+ p_vpar->synchro.i_P_kept = 0;
+ p_vpar->synchro.i_B_kept = 0;
+ }
+
+ break;
+ }
+}
+
/*****************************************************************************
* vpar_SynchroChoose : Decide whether we will decode a picture or not
*****************************************************************************/
boolean_t vpar_SynchroChoose( vpar_thread_t * p_vpar, int i_coding_type,
int i_structure )
{
- return( i_coding_type == I_CODING_TYPE );
+ mtime_t i_delay = p_vpar->synchro.i_last_pts - mdate();
+
+ //return (i_coding_type == I_CODING_TYPE);
+
+ switch( i_coding_type )
+ {
+ case I_CODING_TYPE:
+
+ //intf_ErrMsg( " I %f %f\nI ", 1000000.0 / p_vpar->synchro.i_theorical_delay, 1000000.0 / p_vpar->synchro.i_delay );
+ return( p_vpar->synchro.b_all_I );
+
+ case P_CODING_TYPE:
+
+ //return(1);
+ if( p_vpar->synchro.b_all_P )
+ {
+ //intf_ErrMsg( " p " );
+ return( 1 );
+ }
+
+ if( p_vpar->synchro.displayable_p * i_delay
+ < p_vpar->synchro.i_delay )
+ {
+ //intf_ErrMsg( " - " );
+ return( 0 );
+ }
+
+ p_vpar->synchro.displayable_p--;
+ //intf_ErrMsg( " p> " );
+ return( 1 );
+
+ case B_CODING_TYPE:
+
+ if( p_vpar->synchro.b_all_B )
+ {
+ //intf_ErrMsg( "b " );
+ return( 1 );
+ }
+
+ if( p_vpar->synchro.displayable_b <= 0 )
+ {
+ //intf_ErrMsg( " " );
+ return( 0 );
+ }
+
+ if( i_delay < 0 )
+ {
+ //intf_ErrMsg( "ยท " );
+ p_vpar->synchro.displayable_b -= 0.5;
+ return( 0 );
+ }
+
+ //intf_ErrMsg( "b " );
+ p_vpar->synchro.displayable_b--;
+ return( 1 );
+ }
+
+ return( 0 );
+
}
/*****************************************************************************
void vpar_SynchroTrash( vpar_thread_t * p_vpar, int i_coding_type,
int i_structure )
{
+ vpar_SynchroUpdateStructures (p_vpar, i_coding_type, 0);
}
/*****************************************************************************
* vpar_SynchroDecode : Update timers when we decide to decode a picture
*****************************************************************************/
-mtime_t vpar_SynchroDecode( vpar_thread_t * p_vpar, int i_coding_type,
+void vpar_SynchroDecode( vpar_thread_t * p_vpar, int i_coding_type,
int i_structure )
{
- return mdate() + 500000;
+ vpar_SynchroUpdateStructures (p_vpar, i_coding_type, 1);
+
+ p_vpar->synchro.i_date_fifo[p_vpar->synchro.i_stop] = mdate();
+
+ FIFO_INCREMENT( i_stop );
+
}
/*****************************************************************************
*****************************************************************************/
void vpar_SynchroEnd( vpar_thread_t * p_vpar )
{
+ if( p_vpar->synchro.i_stop != p_vpar->synchro.i_start )
+ {
+ mtime_t i_delay;
+
+ i_delay = ( mdate() -
+ p_vpar->synchro.i_date_fifo[p_vpar->synchro.i_start] )
+ / ( (p_vpar->synchro.i_stop - p_vpar->synchro.i_start) & 0x0f );
+
+ p_vpar->synchro.i_delay =
+ ( 7 * p_vpar->synchro.i_delay + i_delay ) >> 3;
+
+#if 0
+ intf_ErrMsg( "decode %lli (mean %lli, theorical %lli)\n",
+ i_delay, p_vpar->synchro.i_delay,
+ p_vpar->synchro.i_theorical_delay );
+#endif
+ }
+ else
+ {
+ intf_ErrMsg( "vpar error: critical ! fifo full\n" );
+ }
+
+ FIFO_INCREMENT( i_start );
+}
+
+/*****************************************************************************
+ * vpar_SynchroDate : When an image has been decoded, ask for its date
+ *****************************************************************************/
+mtime_t vpar_SynchroDate( vpar_thread_t * p_vpar )
+{
+#if 0
+
+ mtime_t i_displaydate = p_vpar->synchro.i_last_pts;
+
+ static mtime_t i_delta = 0;
+
+ intf_ErrMsg( "displaying image with delay %lli and delta %lli\n",
+ i_displaydate - mdate(),
+ i_displaydate - i_delta );
+
+ intf_ErrMsg ( "theorical fps: %f - actual fps: %f \n",
+ 1000000.0 / p_vpar->synchro.i_theorical_delay, 1000000.0 / p_vpar->synchro.i_delay );
+
+ i_delta = i_displaydate;
+
+ return i_displaydate;
+#else
+
+ return p_vpar->synchro.i_last_pts;
+
+#endif
+}
+
+#endif
+
+#ifdef MEUUH_SYNCHRO
+
+/* synchro a deux balles backportee du decodeur de reference. NE MARCHE PAS
+AVEC LES IMAGES MONOTRAMES */
+
+boolean_t vpar_SynchroChoose( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+ switch (i_coding_type)
+ {
+ case B_CODING_TYPE:
+ if ((p_vpar->synchro.kludge_level <= p_vpar->synchro.kludge_nbp))
+ {
+ p_vpar->synchro.kludge_b++;
+ return( 0 );
+ }
+ if (p_vpar->synchro.kludge_b %
+ (p_vpar->synchro.kludge_nbb /
+ (p_vpar->synchro.kludge_level - p_vpar->synchro.kludge_nbp)))
+ {
+ p_vpar->synchro.kludge_b++;
+ return( 0 );
+ }
+ p_vpar->synchro.kludge_b++;
+ return( 1 );
+
+ case P_CODING_TYPE:
+ if (p_vpar->synchro.kludge_p++ >= p_vpar->synchro.kludge_level)
+ {
+ return( 0 );
+ }
+ return( 1 );
+
+ default:
+ return( 1 );
+ }
+}
+
+void vpar_SynchroTrash( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+ if (DECODER_FIFO_START(p_vpar->fifo)->b_has_pts && i_coding_type == I_CODING_TYPE)
+ {
+ p_vpar->synchro.kludge_nbframes = 0;
+ p_vpar->synchro.kludge_date = DECODER_FIFO_START(p_vpar->fifo)->i_pts;
+ }
+ else
+ p_vpar->synchro.kludge_nbframes++;
+ DECODER_FIFO_START(p_vpar->fifo)->b_has_pts = 0;
+}
+
+void vpar_SynchroDecode( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+ if (DECODER_FIFO_START(p_vpar->fifo)->b_has_pts && i_coding_type == I_CODING_TYPE)
+ {
+ p_vpar->synchro.kludge_nbframes = 0;
+ p_vpar->synchro.kludge_date = DECODER_FIFO_START(p_vpar->fifo)->i_pts;
+ DECODER_FIFO_START(p_vpar->fifo)->b_has_pts = 0;
+ }
+ else
+ p_vpar->synchro.kludge_nbframes++;
+}
+
+mtime_t vpar_SynchroDate( vpar_thread_t * p_vpar )
+{
+ return( p_vpar->synchro.kludge_date
+ + p_vpar->synchro.kludge_nbframes*1000000/(p_vpar->sequence.r_frame_rate ) );
+}
+
+void vpar_SynchroEnd( vpar_thread_t * p_vpar )
+{
+}
+
+void vpar_SynchroKludge( vpar_thread_t * p_vpar, mtime_t date )
+{
+ mtime_t show_date;
+ int temp = p_vpar->synchro.kludge_level;
+
+ p_vpar->synchro.kludge_nbp = p_vpar->synchro.kludge_p ? p_vpar->synchro.kludge_p : 5;
+ p_vpar->synchro.kludge_nbb = p_vpar->synchro.kludge_b ? p_vpar->synchro.kludge_b : 6;
+ show_date = date - mdate();
+ p_vpar->synchro.kludge_p = 0;
+ p_vpar->synchro.kludge_b = 0;
+
+ if (show_date < (SYNC_DELAY - SYNC_TOLERATE) && show_date <= p_vpar->synchro.kludge_prevdate)
+ {
+ p_vpar->synchro.kludge_level--;
+ if (p_vpar->synchro.kludge_level < 0)
+ p_vpar->synchro.kludge_level = 0;
+ else if (p_vpar->synchro.kludge_level >
+ p_vpar->synchro.kludge_nbp + p_vpar->synchro.kludge_nbb)
+ p_vpar->synchro.kludge_level = p_vpar->synchro.kludge_nbp + p_vpar->synchro.kludge_nbb;
+#ifdef DEBUG
+ if (temp != p_vpar->synchro.kludge_level)
+ intf_DbgMsg("vdec debug: Level changed from %d to %d (%Ld)\n",
+ temp, p_vpar->synchro.kludge_level, show_date );
+#endif
+ }
+ else if (show_date > (SYNC_DELAY + SYNC_TOLERATE) && show_date >= p_vpar->synchro.kludge_prevdate)
+ {
+ p_vpar->synchro.kludge_level++;
+ if (p_vpar->synchro.kludge_level > p_vpar->synchro.kludge_nbp + p_vpar->synchro.kludge_nbb)
+ p_vpar->synchro.kludge_level = p_vpar->synchro.kludge_nbp + p_vpar->synchro.kludge_nbb;
+#ifdef DEBUG
+ if (temp != p_vpar->synchro.kludge_level)
+ intf_DbgMsg("vdec debug: Level changed from %d to %d (%Ld)\n",
+ temp, p_vpar->synchro.kludge_level, show_date );
+#endif
+ }
+
+ p_vpar->synchro.kludge_prevdate = show_date;
+ if ((p_vpar->synchro.kludge_level - p_vpar->synchro.kludge_nbp) > p_vpar->synchro.kludge_nbb)
+ p_vpar->synchro.kludge_level = p_vpar->synchro.kludge_nbb + p_vpar->synchro.kludge_nbp;
+}
+
+#endif
+
+
+#ifdef POLUX_SYNCHRO
+
+void vpar_SynchroSetCurrentDate( vpar_thread_t * p_vpar, int i_coding_type )
+{
+ pes_packet_t * p_pes =
+ p_vpar->bit_stream.p_decoder_fifo->buffer[p_vpar->bit_stream.p_decoder_fifo->i_start];
+
+
+ switch( i_coding_type )
+ {
+ case B_CODING_TYPE:
+ if( p_pes->b_has_pts )
+ {
+ if( p_pes->i_pts < p_vpar->synchro.i_current_frame_date )
+ {
+ intf_ErrMsg( "vpar warning: pts_date < current_date\n" );
+ }
+ p_vpar->synchro.i_current_frame_date = p_pes->i_pts;
+ p_pes->b_has_pts = 0;
+ }
+ else
+ {
+ p_vpar->synchro.i_current_frame_date += 1000000/(p_vpar->sequence.r_frame_rate);
+ }
+ break;
+
+ default:
+
+ if( p_vpar->synchro.i_backward_frame_date == 0 )
+ {
+ p_vpar->synchro.i_current_frame_date += 1000000/(p_vpar->sequence.r_frame_rate);
+ }
+ else
+ {
+ if( p_vpar->synchro.i_backward_frame_date < p_vpar->synchro.i_current_frame_date )
+ {
+ intf_ErrMsg( "vpar warning: backward_date < current_date (%Ld)\n",
+ p_vpar->synchro.i_backward_frame_date - p_vpar->synchro.i_current_frame_date );
+ }
+ p_vpar->synchro.i_current_frame_date = p_vpar->synchro.i_backward_frame_date;
+ p_vpar->synchro.i_backward_frame_date = 0;
+ }
+
+ if( p_pes->b_has_pts )
+ {
+ p_vpar->synchro.i_backward_frame_date = p_pes->i_pts;
+ p_pes->b_has_pts = 0;
+ }
+ break;
+ }
+}
+
+boolean_t vpar_SynchroChoose( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+ boolean_t b_result = 1;
+ int i_synchro_level = p_vpar->p_vout->i_synchro_level;
+
+ vpar_SynchroSetCurrentDate( p_vpar, i_coding_type );
+
+ /*
+ * The synchro level is updated by the video input (see SynchroLevelUpdate)
+ * so we just use the synchro_level to decide which frame to trash
+ */
+ switch( i_coding_type )
+ {
+ case I_CODING_TYPE:
+
+ p_vpar->synchro.r_p_average =
+ (p_vpar->synchro.r_p_average*(SYNC_AVERAGE_COUNT-1)+p_vpar->synchro.i_p_count)/SYNC_AVERAGE_COUNT;
+ p_vpar->synchro.r_b_average =
+ (p_vpar->synchro.r_b_average*(SYNC_AVERAGE_COUNT-1)+p_vpar->synchro.i_b_count)/SYNC_AVERAGE_COUNT;
+
+ p_vpar->synchro.i_p_nb = (int)(p_vpar->synchro.r_p_average+0.5);
+ p_vpar->synchro.i_b_nb = (int)(p_vpar->synchro.r_b_average+0.5);
+
+ p_vpar->synchro.i_p_count = p_vpar->synchro.i_b_count = 0;
+ p_vpar->synchro.i_b_trasher = p_vpar->synchro.i_b_nb / 2;
+ p_vpar->synchro.i_i_count++;
+ break;
+
+ case P_CODING_TYPE:
+ p_vpar->synchro.i_p_count++;
+ if( p_vpar->synchro.i_p_count > i_synchro_level )
+ {
+ b_result = 0;
+ }
+ break;
+
+ case B_CODING_TYPE:
+ p_vpar->synchro.i_b_count++;
+ if( p_vpar->synchro.i_p_nb >= i_synchro_level )
+ {
+ /* We must trash all the B */
+ b_result = 0;
+ }
+ else
+ {
+ /* We use the brensenham algorithm to decide which B to trash */
+ p_vpar->synchro.i_b_trasher +=
+ p_vpar->synchro.i_b_nb - (i_synchro_level-p_vpar->synchro.i_p_nb);
+ if( p_vpar->synchro.i_b_trasher >= p_vpar->synchro.i_b_nb )
+ {
+ b_result = 0;
+ p_vpar->synchro.i_b_trasher -= p_vpar->synchro.i_b_nb;
+ }
+ }
+ break;
+ }
+
+ return( b_result );
}
+void vpar_SynchroTrash( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+ vpar_SynchroChoose( p_vpar, i_coding_type, i_structure );
+}
+
+void vpar_SynchroUpdateLevel()
+{
+ //vlc_mutex_lock( &level_lock );
+ //vlc_mutex_unlock( &level_lock );
+}
+
+mtime_t vpar_SynchroDate( vpar_thread_t * p_vpar )
+{
+ return( p_vpar->synchro.i_current_frame_date );
+}
+/* functions with no use */
+
+void vpar_SynchroEnd( vpar_thread_t * p_vpar )
+{
+}
+
+void vpar_SynchroDecode( vpar_thread_t * p_vpar, int i_coding_type,
+ int i_structure )
+{
+}
+#endif
projects / vlc / blobdiff