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https://github.com/mpv-player/mpv.git
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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.)
127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/*
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* Only a sample!
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*
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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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#include "config.h"
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#include <stdio.h>
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#include "common/common.h"
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#include "tv.h"
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static tvi_handle_t *tvi_init_dummy(struct mp_log *log, tv_param_t* tv_param);
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/* information about this file */
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const tvi_info_t tvi_info_dummy = {
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tvi_init_dummy,
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"NULL-TV",
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"dummy",
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};
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/* private data's */
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typedef struct priv {
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int width;
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int height;
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} priv_t;
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#include "tvi_def.h"
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/* handler creator - entry point ! */
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static tvi_handle_t *tvi_init_dummy(struct mp_log *log, tv_param_t* tv_param)
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{
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return tv_new_handle(sizeof(priv_t), log, &functions);
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}
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/* initialisation */
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static int init(priv_t *priv)
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{
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priv->width = 320;
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priv->height = 200;
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return 1;
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}
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/* that's the real start, we'got the format parameters (checked with control) */
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static int start(priv_t *priv)
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{
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return 1;
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}
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static int uninit(priv_t *priv)
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{
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return 1;
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}
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static int do_control(priv_t *priv, int cmd, void *arg)
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{
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switch(cmd)
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{
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case TVI_CONTROL_IS_VIDEO:
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_GET_FORMAT:
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*(int *)arg = MP_FOURCC_YV12;
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_SET_FORMAT:
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{
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// int req_fmt = *(int *)arg;
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int req_fmt = *(int *)arg;
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if (req_fmt != MP_FOURCC_YV12)
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return TVI_CONTROL_FALSE;
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return TVI_CONTROL_TRUE;
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}
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case TVI_CONTROL_VID_SET_WIDTH:
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priv->width = *(int *)arg;
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_GET_WIDTH:
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*(int *)arg = priv->width;
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_SET_HEIGHT:
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priv->height = *(int *)arg;
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_GET_HEIGHT:
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*(int *)arg = priv->height;
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_VID_CHK_WIDTH:
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case TVI_CONTROL_VID_CHK_HEIGHT:
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return TVI_CONTROL_TRUE;
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case TVI_CONTROL_TUN_SET_NORM:
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return TVI_CONTROL_TRUE;
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}
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return TVI_CONTROL_UNKNOWN;
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}
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static double grab_video_frame(priv_t *priv, char *buffer, int len)
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{
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memset(buffer, 0x42, len);
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return MP_NOPTS_VALUE;
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}
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static int get_video_framesize(priv_t *priv)
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{
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/* YV12 */
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return priv->width * priv->height * 12 / 8;
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}
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static double grab_audio_frame(priv_t *priv, char *buffer, int len)
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{
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memset(buffer, 0x42, len);
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return MP_NOPTS_VALUE;
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}
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static int get_audio_framesize(priv_t *priv)
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{
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return 1;
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}
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