mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 17:12:36 +00:00
b6d0b57e85
This file is an leftover from when img_format.h was changed from using the ancient FourCCs (based on Microsoft multimedia conventions) for pixel formats to a simple enum. The remaining cases still inherently used FourCCs for whatever reasons. Instead of worrying about residual copyrights in this file, just move it into code we don't want to relicense (the ancient Linux TV code). We have to fix some other code depending on it. For the most part, we just replace the MP_FOURCC macro with libavutil's MKTAG (although the macro definition is exactly the same). In demux_raw, we drop some pre-defined FourCCs, but it's not like it matters. (Instead of --demuxer-rawvideo-format use --demuxer-rawvideo-mp-format.)
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv 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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* mpv 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 along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_TVI_DEF_H
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#define MPLAYER_TVI_DEF_H
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#include <stdlib.h> /* malloc */
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#include <string.h> /* memset */
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#include "tv.h"
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static int init(priv_t *priv);
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static int uninit(priv_t *priv);
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static int do_control(priv_t *priv, int cmd, void *arg);
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static int start(priv_t *priv);
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static double grab_video_frame(priv_t *priv, char *buffer, int len);
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static int get_video_framesize(priv_t *priv);
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static double grab_audio_frame(priv_t *priv, char *buffer, int len);
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static int get_audio_framesize(priv_t *priv);
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static const tvi_functions_t functions =
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{
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init,
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uninit,
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do_control,
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start,
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grab_video_frame,
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get_video_framesize,
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grab_audio_frame,
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get_audio_framesize
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};
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/**
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Fills video frame in given buffer with blue color for yv12,i420,uyvy,yuy2.
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Other formats will be filled with 0xC0
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*/
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static inline void fill_blank_frame(char* buffer,int len,int fmt){
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int i;
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// RGB(0,0,255) <-> YVU(41,110,240)
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switch(fmt){
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case MP_FOURCC_YV12:
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memset(buffer, 41,4*len/6); //Y
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memset(buffer+4*len/6, 110,len/6);//V
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memset(buffer+5*len/6, 240,len/6);//U
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break;
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case MP_FOURCC_I420:
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memset(buffer, 41,4*len/6); //Y
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memset(buffer+4*len/6, 240,len/6);//U
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memset(buffer+5*len/6, 110,len/6);//V
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break;
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case MP_FOURCC_UYVY:
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for(i=0;i<len;i+=4){
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buffer[i]=0xFF;
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buffer[i+1]=0;
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buffer[i+2]=0;
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buffer[i+3]=0;
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}
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break;
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case MP_FOURCC_YUY2:
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for(i=0;i<len;i+=4){
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buffer[i]=0;
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buffer[i+1]=0xFF;
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buffer[i+2]=0;
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buffer[i+3]=0;
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}
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break;
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case MP_FOURCC_MJPEG:
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/*
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This is compressed format. I don't know yet how to fill such frame with blue color.
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Keeping frame unchanged.
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*/
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break;
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default:
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memset(buffer,0xC0,len);
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}
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}
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#endif /* MPLAYER_TVI_DEF_H */
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