x264 source for verification 2026-05-22
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input/input.h
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158
input/input.h
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/*****************************************************************************
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* input.h: file input
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*****************************************************************************
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* Copyright (C) 2003-2025 x264 project
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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* Loren Merritt <lorenm@u.washington.edu>
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* Steven Walters <kemuri9@gmail.com>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at licensing@x264.com.
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*****************************************************************************/
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#ifndef X264_INPUT_H
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#define X264_INPUT_H
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#include "x264cli.h"
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#ifdef _WIN32
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#include <windows.h>
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#endif
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/* options that are used by only some demuxers */
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typedef struct
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{
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char *index_file;
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char *format;
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char *resolution;
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char *colorspace;
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int bit_depth;
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char *timebase;
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int seek;
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int progress;
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int output_csp; /* convert to this csp, if applicable */
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int output_range; /* user desired output range */
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int input_range; /* user override input range */
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} cli_input_opt_t;
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/* properties of the source given by the demuxer */
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typedef struct
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{
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int csp; /* colorspace of the input */
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uint32_t fps_num;
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uint32_t fps_den;
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int fullrange; /* has 2^bit_depth-1 instead of 219*2^(bit_depth-8) ranges (YUV only) */
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int width;
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int height;
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int interlaced;
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int num_frames;
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uint32_t sar_width;
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uint32_t sar_height;
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int tff;
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int thread_safe; /* demuxer is thread_input safe */
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uint32_t timebase_num;
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uint32_t timebase_den;
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int vfr;
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} video_info_t;
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/* image data type used by x264cli */
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typedef struct
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{
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int csp; /* colorspace */
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int width; /* width of the picture */
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int height; /* height of the picture */
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int planes; /* number of planes */
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uint8_t *plane[4]; /* pointers for each plane */
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int stride[4]; /* strides for each plane */
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} cli_image_t;
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typedef struct
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{
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cli_image_t img;
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int64_t pts; /* input pts */
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int64_t duration; /* frame duration - used for vfr */
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void *opaque; /* opaque handle */
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} cli_pic_t;
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typedef struct
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{
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int (*open_file)( char *psz_filename, hnd_t *p_handle, video_info_t *info, cli_input_opt_t *opt );
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int (*picture_alloc)( cli_pic_t *pic, hnd_t handle, int csp, int width, int height );
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int (*read_frame)( cli_pic_t *pic, hnd_t handle, int i_frame );
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int (*release_frame)( cli_pic_t *pic, hnd_t handle );
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void (*picture_clean)( cli_pic_t *pic, hnd_t handle );
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int (*close_file)( hnd_t handle );
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} cli_input_t;
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extern const cli_input_t raw_input;
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extern const cli_input_t y4m_input;
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extern const cli_input_t avs_input;
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extern const cli_input_t thread_8_input;
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extern const cli_input_t thread_10_input;
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extern const cli_input_t lavf_input;
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extern const cli_input_t ffms_input;
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extern const cli_input_t timecode_input;
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extern cli_input_t cli_input;
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/* extended colorspace list that isn't supported by libx264 but by the cli */
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#define X264_CSP_CLI_MAX X264_CSP_MAX /* end of list */
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#define X264_CSP_OTHER 0x4000 /* non x264 colorspace */
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typedef struct
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{
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const char *name;
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int planes;
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float width[4];
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float height[4];
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int mod_width;
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int mod_height;
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} x264_cli_csp_t;
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extern const x264_cli_csp_t x264_cli_csps[];
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int x264_cli_csp_is_invalid( int csp );
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int x264_cli_csp_depth_factor( int csp );
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int x264_cli_pic_alloc( cli_pic_t *pic, int csp, int width, int height );
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int x264_cli_pic_alloc_aligned( cli_pic_t *pic, int csp, int width, int height );
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int x264_cli_pic_init_noalloc( cli_pic_t *pic, int csp, int width, int height );
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void x264_cli_pic_clean( cli_pic_t *pic );
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int64_t x264_cli_pic_plane_size( int csp, int width, int height, int plane );
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int64_t x264_cli_pic_size( int csp, int width, int height );
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const x264_cli_csp_t *x264_cli_get_csp( int csp );
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typedef struct
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{
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int64_t file_size;
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int align_mask;
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#ifdef _WIN32
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int page_mask;
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BOOL (WINAPI *prefetch_virtual_memory)( HANDLE, ULONG_PTR, PVOID, ULONG );
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HANDLE process_handle;
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HANDLE map_handle;
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#elif HAVE_MMAP
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int fd;
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#endif
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} cli_mmap_t;
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int x264_cli_mmap_init( cli_mmap_t *h, FILE *fh );
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void *x264_cli_mmap( cli_mmap_t *h, int64_t offset, int64_t size );
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int x264_cli_munmap( cli_mmap_t *h, void *addr, int64_t size );
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void x264_cli_mmap_close( cli_mmap_t *h );
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#endif
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