]> git.sesse.net Git - x264/blob - input/thread.c
Centralize logging within x264cli
[x264] / input / thread.c
1 /*****************************************************************************
2  * thread.c: x264 threaded input module
3  *****************************************************************************
4  * Copyright (C) 2003-2009 x264 project
5  *
6  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7  *          Loren Merritt <lorenm@u.washington.edu>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
22  *****************************************************************************/
23
24 #include "input.h"
25
26 extern cli_input_t input;
27
28 typedef struct
29 {
30     cli_input_t input;
31     hnd_t p_handle;
32     x264_picture_t pic;
33     x264_threadpool_t *pool;
34     int next_frame;
35     int frame_total;
36     struct thread_input_arg_t *next_args;
37 } thread_hnd_t;
38
39 typedef struct thread_input_arg_t
40 {
41     thread_hnd_t *h;
42     x264_picture_t *pic;
43     int i_frame;
44     int status;
45 } thread_input_arg_t;
46
47 static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
48 {
49     thread_hnd_t *h = malloc( sizeof(thread_hnd_t) );
50     FAIL_IF_ERR( !h || input.picture_alloc( &h->pic, info->csp, info->width, info->height ),
51                  "x264", "malloc failed\n" )
52     h->input = input;
53     h->p_handle = *p_handle;
54     h->next_frame = -1;
55     h->next_args = malloc( sizeof(thread_input_arg_t) );
56     if( !h->next_args )
57         return -1;
58     h->next_args->h = h;
59     h->next_args->status = 0;
60     h->frame_total = input.get_frame_total( h->p_handle );
61     thread_input.picture_alloc = h->input.picture_alloc;
62     thread_input.picture_clean = h->input.picture_clean;
63
64     if( x264_threadpool_init( &h->pool, 1, NULL, NULL ) )
65         return -1;
66
67     *p_handle = h;
68     return 0;
69 }
70
71 static int get_frame_total( hnd_t handle )
72 {
73     thread_hnd_t *h = handle;
74     return h->frame_total;
75 }
76
77 static void read_frame_thread_int( thread_input_arg_t *i )
78 {
79     i->status = i->h->input.read_frame( i->pic, i->h->p_handle, i->i_frame );
80 }
81
82 static int read_frame( x264_picture_t *p_pic, hnd_t handle, int i_frame )
83 {
84     thread_hnd_t *h = handle;
85     int ret = 0;
86
87     if( h->next_frame >= 0 )
88     {
89         x264_threadpool_wait( h->pool, h->next_args );
90         ret |= h->next_args->status;
91     }
92
93     if( h->next_frame == i_frame )
94         XCHG( x264_picture_t, *p_pic, h->pic );
95     else
96         ret |= h->input.read_frame( p_pic, h->p_handle, i_frame );
97
98     if( !h->frame_total || i_frame+1 < h->frame_total )
99     {
100         h->next_frame =
101         h->next_args->i_frame = i_frame+1;
102         h->next_args->pic = &h->pic;
103         x264_threadpool_run( h->pool, (void*)read_frame_thread_int, h->next_args );
104     }
105     else
106         h->next_frame = -1;
107
108     return ret;
109 }
110
111 static int release_frame( x264_picture_t *pic, hnd_t handle )
112 {
113     thread_hnd_t *h = handle;
114     if( h->input.release_frame )
115         return h->input.release_frame( pic, h->p_handle );
116     return 0;
117 }
118
119 static int close_file( hnd_t handle )
120 {
121     thread_hnd_t *h = handle;
122     x264_threadpool_delete( h->pool );
123     h->input.close_file( h->p_handle );
124     h->input.picture_clean( &h->pic );
125     free( h->next_args );
126     free( h );
127     return 0;
128 }
129
130 cli_input_t thread_input = { open_file, get_frame_total, NULL, read_frame, release_frame, NULL, close_file };