1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2003-2011 x264 project
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Loren Merritt <lorenm@u.washington.edu>
8 * Steven Walters <kemuri9@gmail.com>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
24 * This program is also available under a commercial proprietary license.
25 * For more information, contact us at licensing@x264.com.
26 *****************************************************************************/
29 #define FAIL_IF_ERROR( cond, ... ) FAIL_IF_ERR( cond, "raw", __VA_ARGS__ )
35 uint64_t plane_size[4];
40 static int open_file( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt )
42 raw_hnd_t *h = calloc( 1, sizeof(raw_hnd_t) );
46 if( !opt->resolution )
48 /* try to parse the file name */
49 for( char *p = psz_filename; *p; p++ )
50 if( *p >= '0' && *p <= '9' && sscanf( p, "%dx%d", &info->width, &info->height ) == 2 )
54 sscanf( opt->resolution, "%dx%d", &info->width, &info->height );
55 FAIL_IF_ERROR( !info->width || !info->height, "raw input requires a resolution.\n" )
58 for( info->csp = X264_CSP_CLI_MAX-1; x264_cli_csps[info->csp].name && strcasecmp( x264_cli_csps[info->csp].name, opt->colorspace ); )
60 FAIL_IF_ERROR( info->csp == X264_CSP_NONE, "unsupported colorspace `%s'\n", opt->colorspace );
63 info->csp = X264_CSP_I420;
65 h->bit_depth = opt->bit_depth;
66 FAIL_IF_ERROR( h->bit_depth < 8 || h->bit_depth > 16, "unsupported bit depth `%d'\n", h->bit_depth );
67 if( h->bit_depth > 8 )
68 info->csp |= X264_CSP_HIGH_DEPTH;
70 if( !strcmp( psz_filename, "-" ) )
73 h->fh = fopen( psz_filename, "rb" );
77 info->thread_safe = 1;
81 const x264_cli_csp_t *csp = x264_cli_get_csp( info->csp );
82 for( int i = 0; i < csp->planes; i++ )
84 h->plane_size[i] = x264_cli_pic_plane_size( info->csp, info->width, info->height, i );
85 h->frame_size += h->plane_size[i];
86 /* x264_cli_pic_plane_size returns the size in bytes, we need the value in pixels from here on */
87 h->plane_size[i] /= x264_cli_csp_depth_factor( info->csp );
90 if( x264_is_regular_file( h->fh ) )
92 fseek( h->fh, 0, SEEK_END );
93 uint64_t size = ftell( h->fh );
94 fseek( h->fh, 0, SEEK_SET );
95 info->num_frames = size / h->frame_size;
102 static int read_frame_internal( cli_pic_t *pic, raw_hnd_t *h )
105 int pixel_depth = x264_cli_csp_depth_factor( pic->img.csp );
106 for( int i = 0; i < pic->img.planes && !error; i++ )
108 error |= fread( pic->img.plane[i], pixel_depth, h->plane_size[i], h->fh ) != h->plane_size[i];
109 if( h->bit_depth & 7 )
111 /* upconvert non 16bit high depth planes to 16bit using the same
112 * algorithm as used in the depth filter. */
113 uint16_t *plane = (uint16_t*)pic->img.plane[i];
114 uint64_t pixel_count = h->plane_size[i];
115 int lshift = 16 - h->bit_depth;
116 int rshift = 2*h->bit_depth - 16;
117 for( uint64_t j = 0; j < pixel_count; j++ )
118 plane[j] = (plane[j] << lshift) + (plane[j] >> rshift);
124 static int read_frame( cli_pic_t *pic, hnd_t handle, int i_frame )
126 raw_hnd_t *h = handle;
128 if( i_frame > h->next_frame )
130 if( x264_is_regular_file( h->fh ) )
131 fseek( h->fh, i_frame * h->frame_size, SEEK_SET );
133 while( i_frame > h->next_frame )
135 if( read_frame_internal( pic, h ) )
141 if( read_frame_internal( pic, h ) )
144 h->next_frame = i_frame+1;
148 static int close_file( hnd_t handle )
150 raw_hnd_t *h = handle;
158 const cli_input_t raw_input = { open_file, x264_cli_pic_alloc, read_frame, NULL, x264_cli_pic_clean, close_file };