mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-04 09:11:33 +02:00
57947f9678
piti�, pour ne laisser que � vlc �, � gvlc � (gnome) et � fbvlc �
(framebuffer) ; les autres restent bien entendu accessibles avec
par exemple � vlc --vout ggi �.
. IMPORTANT - nouvelle option --synchro pour forcer un type de
synchro. Pour le moment les options possibles sont :
--synchro I /* n'affiche que les I */
--synchro IP /* affiche les I et toutes les P */
--synchro IP+ /* affiche les I, les P, et la moiti� des B */
--synchro IPB /* affiche toutes les images */
Toute autre valeur de --synchro sera ignor�e et c'est l'algo
par d�faut bas� sur la consommation de processeur qui sera
utilis�. Notez que si vous en demandez trop au vlc, il va
bien entendu planter, ou tout du moins remplir sa fifo comme
un gros cochon. On n'y peut pas grand chose, c'est la vie.
143 lines
4.7 KiB
C
143 lines
4.7 KiB
C
/*****************************************************************************
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* vpar_synchro.h : video parser blocks management
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*****************************************************************************
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* Copyright (C) 1999, 2000 VideoLAN
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*
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* Authors:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Requires:
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* "config.h"
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* "common.h"
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* "mtime.h"
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* "threads.h"
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* "input.h"
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* "video.h"
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* "video_output.h"
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* "decoder_fifo.h"
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* "video_fifo.h"
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*****************************************************************************/
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#define SAM_SYNCHRO
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//#define POLUX_SYNCHRO
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//#define MEUUH_SYNCHRO
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/*****************************************************************************
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* video_synchro_t and video_synchro_tab_s : timers for the video synchro
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*****************************************************************************/
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#ifdef SAM_SYNCHRO
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typedef struct video_synchro_s
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{
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/* synchro algorithm */
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int i_type;
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/* fifo containing decoding dates */
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mtime_t i_date_fifo[16];
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unsigned int i_start;
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unsigned int i_stop;
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/* mean decoding time */
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mtime_t i_delay;
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mtime_t i_theorical_delay;
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/* dates */
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mtime_t i_last_pts; /* pts of the last displayed image */
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mtime_t i_last_seen_I_pts; /* date of the last I we decoded */
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mtime_t i_last_kept_I_pts; /* pts of last non-dropped I image */
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/* P images since the last I */
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unsigned int i_P_seen;
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unsigned int i_P_kept;
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/* B images since the last I */
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unsigned int i_B_seen;
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unsigned int i_B_kept;
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/* can we display pictures ? */
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boolean_t b_all_I;
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boolean_t b_all_P;
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int displayable_p;
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boolean_t b_all_B;
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int displayable_b;
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boolean_t b_dropped_last_B;
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} video_synchro_t;
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#define FIFO_INCREMENT( i_counter ) \
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p_vpar->synchro.i_counter = (p_vpar->synchro.i_counter + 1) & 0xf;
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#define VPAR_SYNCHRO_DEFAULT 0
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#define VPAR_SYNCHRO_I 1
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#define VPAR_SYNCHRO_IP 2
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#define VPAR_SYNCHRO_IPplus 3
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#define VPAR_SYNCHRO_IPB 4
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#endif
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#ifdef MEUUH_SYNCHRO
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typedef struct video_synchro_s
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{
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int kludge_level, kludge_p, kludge_b, kludge_nbp, kludge_nbb;
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int kludge_nbframes;
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mtime_t kludge_date, kludge_prevdate;
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int i_coding_type;
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} video_synchro_t;
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#define SYNC_TOLERATE ((int)(0.010*CLOCK_FREQ)) /* 10 ms */
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#define SYNC_DELAY ((int)(0.500*CLOCK_FREQ)) /* 500 ms */
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#endif
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#ifdef POLUX_SYNCHRO
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#define SYNC_AVERAGE_COUNT 10
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typedef struct video_synchro_s
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{
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/* Date Section */
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/* Dates needed to compute the date of the current frame
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* We also use the stream frame rate (sequence.i_frame_rate) */
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mtime_t i_current_frame_date;
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mtime_t i_backward_frame_date;
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/* Frame Trashing Section */
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int i_b_nb, i_p_nb; /* number of decoded P and B between two I */
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float r_b_average, r_p_average;
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int i_b_count, i_p_count, i_i_count;
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int i_b_trasher; /* used for brensenham algorithm */
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} video_synchro_t;
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#endif
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/*****************************************************************************
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* Prototypes
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*****************************************************************************/
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boolean_t vpar_SynchroChoose ( struct vpar_thread_s * p_vpar,
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int i_coding_type, int i_structure );
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void vpar_SynchroTrash ( struct vpar_thread_s * p_vpar,
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int i_coding_type, int i_structure );
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void vpar_SynchroDecode ( struct vpar_thread_s * p_vpar,
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int i_coding_type, int i_structure );
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void vpar_SynchroEnd ( struct vpar_thread_s * p_vpar );
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mtime_t vpar_SynchroDate ( struct vpar_thread_s * p_vpar );
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#ifndef SAM_SYNCHRO
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void vpar_SynchroKludge ( struct vpar_thread_s *, mtime_t );
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#endif
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