mirror of https://code.videolan.org/videolan/x264
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/*****************************************************************************
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* example.c: libx264 API usage example
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*****************************************************************************
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* Copyright (C) 2014-2024 x264 project
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*
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* Authors: Anton Mitrofanov <BugMaster@narod.ru>
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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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#ifdef _WIN32
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#include <io.h> /* _setmode() */
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#include <fcntl.h> /* _O_BINARY */
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#endif
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#include <stdint.h>
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#include <stdio.h>
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#include <x264.h>
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#define FAIL_IF_ERROR( cond, ... )\
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do\
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{\
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if( cond )\
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{\
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fprintf( stderr, __VA_ARGS__ );\
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goto fail;\
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}\
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} while( 0 )
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int main( int argc, char **argv )
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{
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int width, height;
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x264_param_t param;
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x264_picture_t pic;
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x264_picture_t pic_out;
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x264_t *h;
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int i_frame = 0;
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int i_frame_size;
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x264_nal_t *nal;
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int i_nal;
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#ifdef _WIN32
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_setmode( _fileno( stdin ), _O_BINARY );
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_setmode( _fileno( stdout ), _O_BINARY );
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_setmode( _fileno( stderr ), _O_BINARY );
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#endif
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FAIL_IF_ERROR( !(argc > 1), "Example usage: example 352x288 <input.yuv >output.h264\n" );
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FAIL_IF_ERROR( 2 != sscanf( argv[1], "%dx%d", &width, &height ), "resolution not specified or incorrect\n" );
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/* Get default params for preset/tuning */
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if( x264_param_default_preset( ¶m, "medium", NULL ) < 0 )
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goto fail;
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/* Configure non-default params */
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param.i_bitdepth = 8;
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param.i_csp = X264_CSP_I420;
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param.i_width = width;
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param.i_height = height;
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param.b_vfr_input = 0;
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param.b_repeat_headers = 1;
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param.b_annexb = 1;
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/* Apply profile restrictions. */
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if( x264_param_apply_profile( ¶m, "high" ) < 0 )
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goto fail;
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if( x264_picture_alloc( &pic, param.i_csp, param.i_width, param.i_height ) < 0 )
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goto fail;
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#undef fail
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#define fail fail2
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h = x264_encoder_open( ¶m );
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if( !h )
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goto fail;
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#undef fail
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#define fail fail3
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int luma_size = width * height;
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int chroma_size = luma_size / 4;
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/* Encode frames */
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for( ;; i_frame++ )
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{
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/* Read input frame */
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if( fread( pic.img.plane[0], 1, luma_size, stdin ) != (unsigned)luma_size )
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break;
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if( fread( pic.img.plane[1], 1, chroma_size, stdin ) != (unsigned)chroma_size )
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break;
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if( fread( pic.img.plane[2], 1, chroma_size, stdin ) != (unsigned)chroma_size )
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break;
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pic.i_pts = i_frame;
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i_frame_size = x264_encoder_encode( h, &nal, &i_nal, &pic, &pic_out );
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if( i_frame_size < 0 )
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goto fail;
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else if( i_frame_size )
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{
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if( !fwrite( nal->p_payload, i_frame_size, 1, stdout ) )
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goto fail;
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}
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}
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/* Flush delayed frames */
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while( x264_encoder_delayed_frames( h ) )
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{
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i_frame_size = x264_encoder_encode( h, &nal, &i_nal, NULL, &pic_out );
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if( i_frame_size < 0 )
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goto fail;
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else if( i_frame_size )
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{
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if( !fwrite( nal->p_payload, i_frame_size, 1, stdout ) )
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goto fail;
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}
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}
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x264_encoder_close( h );
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x264_picture_clean( &pic );
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return 0;
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#undef fail
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fail3:
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x264_encoder_close( h );
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fail2:
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x264_picture_clean( &pic );
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fail:
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return -1;
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}
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