mirror of
https://github.com/mpv-player/mpv
synced 2024-12-19 05:15:12 +00:00
f0223e1b83
Naturally, there's more than one fourcc that indicates an mjpeg stream. I have a particular ancient webcam here (Logitech QuickCam Messanger) that only supports the single 'JPEG' format, but there are other devices out there which support both 'JPEG' and 'MJPG' with no visible differences, and others where the streams are slightly different. Regardless of those details, it remains correct to treat 'JPEG' the same as 'MJPG' from a stream consumption perspective.
286 lines
8.8 KiB
C
286 lines
8.8 KiB
C
/*
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* TV interface
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*
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* Copyright (C) 2001 Alex Beregszászi
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* Copyright (C) 2007 Attila Ötvös
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* Copyright (C) 2007 Vladimir Voroshilov <voroshil@gmail.com>
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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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#ifndef MPLAYER_TV_H
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#define MPLAYER_TV_H
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#include "osdep/endian.h"
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#include "config.h"
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#if !HAVE_GPL
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#error GPL only
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#endif
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struct mp_log;
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typedef struct tv_params {
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float freq;
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char *channel;
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char *chanlist;
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char *norm;
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int automute;
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int normid;
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char *device;
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char *driver;
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int width;
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int height;
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int input;
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int outfmt;
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float fps;
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char **channels;
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int audio;
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int immediate;
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int audiorate;
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int audio_id;
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int amode;
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int volume;
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int bass;
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int treble;
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int balance;
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int forcechan;
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int force_audio;
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int buffer_size;
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int mjpeg;
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int decimation;
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int quality;
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int alsa;
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char* adevice;
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int brightness;
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int contrast;
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int hue;
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int saturation;
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int gain;
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int scan;
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int scan_threshold;
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float scan_period;
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} tv_param_t;
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struct tv_stream_params {
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char *channel;
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int input;
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};
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typedef struct tvi_info_s
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{
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struct tvi_handle_s * (*tvi_init)(struct mp_log *log, tv_param_t* tv_param);
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const char *name;
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const char *short_name;
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} tvi_info_t;
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struct priv;
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typedef struct tvi_functions_s
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{
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int (*init)(struct priv *priv);
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int (*uninit)(struct priv *priv);
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int (*control)(struct priv *priv, int cmd, void *arg);
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int (*start)(struct priv *priv);
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double (*grab_video_frame)(struct priv *priv, char *buffer, int len);
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int (*get_video_framesize)(struct priv *priv);
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double (*grab_audio_frame)(struct priv *priv, char *buffer, int len);
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int (*get_audio_framesize)(struct priv *priv);
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} tvi_functions_t;
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typedef struct tvi_handle_s {
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struct mp_log *log;
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const tvi_functions_t *functions;
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void *priv;
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int seq;
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struct demuxer *demuxer;
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/* specific */
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int norm;
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int chanlist;
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const struct CHANLIST *chanlist_s;
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int channel;
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tv_param_t * tv_param;
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void * scan;
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struct tv_channels_s *tv_channel_list;
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struct tv_channels_s *tv_channel_current, *tv_channel_last;
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char *tv_channel_last_real;
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} tvi_handle_t;
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typedef struct tv_channels_s {
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int index;
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char number[5];
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char name[20];
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int norm;
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int freq;
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struct tv_channels_s *next;
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struct tv_channels_s *prev;
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} tv_channels_t;
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typedef struct {
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unsigned int scan_timer;
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int channel_num;
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int new_channels;
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} tv_scan_t;
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#define TVI_CONTROL_FALSE 0
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#define TVI_CONTROL_TRUE 1
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#define TVI_CONTROL_NA -1
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#define TVI_CONTROL_UNKNOWN -2
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/* ======================== CONTROLS =========================== */
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/* GENERIC controls */
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#define TVI_CONTROL_IS_AUDIO 0x1
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#define TVI_CONTROL_IS_VIDEO 0x2
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#define TVI_CONTROL_IS_TUNER 0x3
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#define TVI_CONTROL_IMMEDIATE 0x4
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/* VIDEO controls */
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#define TVI_CONTROL_VID_GET_FPS 0x101
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#define TVI_CONTROL_VID_GET_PLANES 0x102
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#define TVI_CONTROL_VID_GET_BITS 0x103
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#define TVI_CONTROL_VID_CHK_BITS 0x104
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#define TVI_CONTROL_VID_SET_BITS 0x105
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#define TVI_CONTROL_VID_GET_FORMAT 0x106
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#define TVI_CONTROL_VID_CHK_FORMAT 0x107
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#define TVI_CONTROL_VID_SET_FORMAT 0x108
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#define TVI_CONTROL_VID_GET_WIDTH 0x109
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#define TVI_CONTROL_VID_CHK_WIDTH 0x110
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#define TVI_CONTROL_VID_SET_WIDTH 0x111
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#define TVI_CONTROL_VID_GET_HEIGHT 0x112
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#define TVI_CONTROL_VID_CHK_HEIGHT 0x113
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#define TVI_CONTROL_VID_SET_HEIGHT 0x114
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#define TVI_CONTROL_VID_GET_BRIGHTNESS 0x115
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#define TVI_CONTROL_VID_SET_BRIGHTNESS 0x116
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#define TVI_CONTROL_VID_GET_HUE 0x117
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#define TVI_CONTROL_VID_SET_HUE 0x118
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#define TVI_CONTROL_VID_GET_SATURATION 0x119
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#define TVI_CONTROL_VID_SET_SATURATION 0x11a
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#define TVI_CONTROL_VID_GET_CONTRAST 0x11b
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#define TVI_CONTROL_VID_SET_CONTRAST 0x11c
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#define TVI_CONTROL_VID_GET_PICTURE 0x11d
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#define TVI_CONTROL_VID_SET_PICTURE 0x11e
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#define TVI_CONTROL_VID_SET_GAIN 0x11f
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#define TVI_CONTROL_VID_GET_GAIN 0x120
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#define TVI_CONTROL_VID_SET_WIDTH_HEIGHT 0x121
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/* TUNER controls */
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#define TVI_CONTROL_TUN_GET_FREQ 0x201
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#define TVI_CONTROL_TUN_SET_FREQ 0x202
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#define TVI_CONTROL_TUN_GET_TUNER 0x203 /* update priv->tuner struct for used input */
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#define TVI_CONTROL_TUN_SET_TUNER 0x204 /* update priv->tuner struct for used input */
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#define TVI_CONTROL_TUN_GET_NORM 0x205
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#define TVI_CONTROL_TUN_SET_NORM 0x206
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#define TVI_CONTROL_TUN_GET_SIGNAL 0x207
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/* AUDIO controls */
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#define TVI_CONTROL_AUD_GET_FORMAT 0x301
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#define TVI_CONTROL_AUD_GET_SAMPLERATE 0x302
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#define TVI_CONTROL_AUD_GET_CHANNELS 0x304
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#define TVI_CONTROL_AUD_SET_SAMPLERATE 0x305
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/* SPECIFIC controls */
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#define TVI_CONTROL_SPC_GET_INPUT 0x401 /* set input channel (tv,s-video,composite..) */
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#define TVI_CONTROL_SPC_SET_INPUT 0x402 /* set input channel (tv,s-video,composite..) */
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#define TVI_CONTROL_SPC_GET_NORMID 0x403 /* get normid from norm name */
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int tv_set_color_options(tvi_handle_t *tvh, int opt, int val);
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int tv_get_color_options(tvi_handle_t *tvh, int opt, int* val);
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int tv_step_channel_real(tvi_handle_t *tvh, int direction);
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int tv_step_channel(tvi_handle_t *tvh, int direction);
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#define TV_CHANNEL_LOWER 1
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#define TV_CHANNEL_HIGHER 2
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int tv_last_channel(tvi_handle_t *tvh);
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int tv_set_channel_real(tvi_handle_t *tvh, char *channel);
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int tv_set_channel(tvi_handle_t *tvh, char *channel);
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int tv_step_norm(tvi_handle_t *tvh);
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int tv_step_chanlist(tvi_handle_t *tvh);
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int tv_set_freq(tvi_handle_t *tvh, unsigned long freq);
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int tv_get_freq(tvi_handle_t *tvh, unsigned long *freq);
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int tv_get_signal(tvi_handle_t *tvh);
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int tv_step_freq(tvi_handle_t *tvh, float step_interval);
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int tv_set_norm(tvi_handle_t *tvh, char* norm);
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void tv_start_scan(tvi_handle_t *tvh, int start);
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tvi_handle_t *tv_new_handle(int size, struct mp_log *log, const tvi_functions_t *functions);
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void tv_free_handle(tvi_handle_t *h);
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#define TV_NORM_PAL 1
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#define TV_NORM_NTSC 2
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#define TV_NORM_SECAM 3
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#define TV_NORM_PALNC 4
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#define TV_NORM_PALM 5
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#define TV_NORM_PALN 6
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#define TV_NORM_NTSCJP 7
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int tv_uninit(tvi_handle_t *tvh);
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void tv_scan(tvi_handle_t *tvh);
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int open_tv(tvi_handle_t *tvh);
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tvi_handle_t *tv_begin(tv_param_t* tv_param, struct mp_log *log);
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int tv_stream_control(tvi_handle_t *tvh, int cmd, void *arg);
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extern const struct m_sub_options tv_params_conf;
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#define MP_FOURCC(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((unsigned)(d)<<24))
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#if BYTE_ORDER == BIG_ENDIAN
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#define MP_FOURCC_E(a,b,c,d) MP_FOURCC(a,b,c,d)
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#else
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#define MP_FOURCC_E(a,b,c,d) MP_FOURCC(d,c,b,a)
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#endif
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#define MP_FOURCC_RGB8 MP_FOURCC_E(8, 'B', 'G', 'R')
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#define MP_FOURCC_RGB12 MP_FOURCC_E(12, 'B', 'G', 'R')
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#define MP_FOURCC_RGB15 MP_FOURCC_E(15, 'B', 'G', 'R')
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#define MP_FOURCC_RGB16 MP_FOURCC_E(16, 'B', 'G', 'R')
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#define MP_FOURCC_RGB24 MP_FOURCC_E(24, 'B', 'G', 'R')
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#define MP_FOURCC_RGB32 MP_FOURCC_E('A', 'B', 'G', 'R')
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#define MP_FOURCC_BGR8 MP_FOURCC_E(8, 'R', 'G', 'B')
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#define MP_FOURCC_BGR12 MP_FOURCC_E(12, 'R', 'G', 'B')
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#define MP_FOURCC_BGR15 MP_FOURCC_E(15, 'R', 'G', 'B')
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#define MP_FOURCC_BGR16 MP_FOURCC_E(16, 'R', 'G', 'B')
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#define MP_FOURCC_BGR24 MP_FOURCC_E(24, 'R', 'G', 'B')
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#define MP_FOURCC_BGR32 MP_FOURCC_E('A', 'R', 'G', 'B')
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#define MP_FOURCC_YVU9 MP_FOURCC('Y', 'U', 'V', '9')
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#define MP_FOURCC_YUV9 MP_FOURCC('Y', 'V', 'U', '9')
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#define MP_FOURCC_YV12 MP_FOURCC('Y', 'V', '1', '2')
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#define MP_FOURCC_I420 MP_FOURCC('I', '4', '2', '0')
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#define MP_FOURCC_IYUV MP_FOURCC('I', 'Y', 'U', 'V')
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#define MP_FOURCC_Y800 MP_FOURCC('Y', '8', '0', '0')
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#define MP_FOURCC_NV12 MP_FOURCC('N', 'V', '1', '2')
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#define MP_FOURCC_NV21 MP_FOURCC('N', 'V', '2', '1')
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#define MP_FOURCC_UYVY MP_FOURCC('U', 'Y', 'V', 'Y')
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#define MP_FOURCC_YUY2 MP_FOURCC('Y', 'U', 'Y', '2')
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#define MP_FOURCC_MJPEG MP_FOURCC('M', 'J', 'P', 'G')
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#define MP_FOURCC_JPEG MP_FOURCC('J', 'P', 'E', 'G')
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#endif /* MPLAYER_TV_H */
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