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/*
* Copyright (C) 2001 Alex Beregszaszi
*
* Feb 19, 2002: Significant rewrites by Charles R. Henrich (henrich@msu.edu)
* to add support for audio, and bktr *BSD support.
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include "common/common.h"
#include "common/msg.h"
#include "options/m_option.h"
#include "options/m_config.h"
#include "options/options.h"
#include "demux.h"
#include "codec_tags.h"
#include "audio/format.h"
#include "osdep/endian.h"
#include "stream/stream.h"
#include "stream/tv.h"
static int demux_open_tv(demuxer_t *demuxer, enum demux_check check)
{
tvi_handle_t *tvh;
const tvi_functions_t *funcs;
if (check > DEMUX_CHECK_REQUEST)
return -1;
if (!demuxer->stream->info || strcmp(demuxer->stream->info->name, "tv") != 0)
return -1;
tv_param_t *params = mp_get_config_group(demuxer, demuxer->global,
&tv_params_conf);
bstr urlparams = bstr0(demuxer->stream->path);
bstr channel, input;
bstr_split_tok(urlparams, "/", &channel, &input);
if (channel.len) {
talloc_free(params->channel);
params->channel = bstrto0(NULL, channel);
}
if (input.len) {
bstr r;
params->input = bstrtoll(input, &r, 0);
if (r.len) {
MP_ERR(demuxer->stream, "invalid input: '%.*s'\n", BSTR_P(input));
return -1;
}
}
assert(demuxer->priv==NULL);
if(!(tvh=tv_begin(params, demuxer->log))) return -1;
if (!tvh->functions->init(tvh->priv)) return -1;
tvh->demuxer = demuxer;
if (!open_tv(tvh)){
tv_uninit(tvh);
return -1;
}
funcs = tvh->functions;
demuxer->priv=tvh;
struct sh_stream *sh_v = demux_alloc_sh_stream(STREAM_VIDEO);
/* get IMAGE FORMAT */
int fourcc;
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &fourcc);
if (fourcc == MP_FOURCC_MJPEG || fourcc == MP_FOURCC_JPEG) {
sh_v->codec->codec = "mjpeg";
} else {
sh_v->codec->codec = "rawvideo";
sh_v->codec->codec_tag = fourcc;
}
/* set FPS and FRAMETIME */
if(!sh_v->codec->fps)
{
float tmp;
if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &tmp) != TVI_CONTROL_TRUE)
sh_v->codec->fps = 25.0f; /* on PAL */
else sh_v->codec->fps = tmp;
}
if (tvh->tv_param->fps != -1.0f)
sh_v->codec->fps = tvh->tv_param->fps;
/* If playback only mode, go to immediate mode, fail silently */
if(tvh->tv_param->immediate == 1)
{
funcs->control(tvh->priv, TVI_CONTROL_IMMEDIATE, 0);
tvh->tv_param->audio = 0;
}
/* set width */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_v->codec->disp_w);
/* set height */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_v->codec->disp_h);
demux_add_sh_stream(demuxer, sh_v);
demuxer->seekable = 0;
/* here comes audio init */
if (tvh->tv_param->audio && funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
{
int audio_format;
/* yeah, audio is present */
funcs->control(tvh->priv, TVI_CONTROL_AUD_SET_SAMPLERATE,
&tvh->tv_param->audiorate);
if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
goto no_audio;
switch(audio_format)
{
// This is the only format any of the current inputs generate.
case AF_FORMAT_S16:
break;
default:
MP_ERR(tvh, "Audio type '%s' unsupported!\n",
af_fmt_to_str(audio_format));
goto no_audio;
}
struct sh_stream *sh_a = demux_alloc_sh_stream(STREAM_AUDIO);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE,
&sh_a->codec->samplerate);
int nchannels = sh_a->codec->channels.num;
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS,
&nchannels);
mp_chmap_from_channels(&sh_a->codec->channels, nchannels);
// s16ne
mp_set_pcm_codec(sh_a->codec, true, false, 16, BYTE_ORDER == BIG_ENDIAN);
demux_add_sh_stream(demuxer, sh_a);
MP_VERBOSE(tvh, " TV audio: %d channels, %d bits, %d Hz\n",
nchannels, 16, sh_a->codec->samplerate);
}
no_audio:
if(!(funcs->start(tvh->priv))){
// start failed :(
tv_uninit(tvh);
return -1;
}
/* set color eq */
tv_set_color_options(tvh, TV_COLOR_BRIGHTNESS, tvh->tv_param->brightness);
tv_set_color_options(tvh, TV_COLOR_HUE, tvh->tv_param->hue);
tv_set_color_options(tvh, TV_COLOR_SATURATION, tvh->tv_param->saturation);
tv_set_color_options(tvh, TV_COLOR_CONTRAST, tvh->tv_param->contrast);
if(tvh->tv_param->gain!=-1)
if(funcs->control(tvh->priv,TVI_CONTROL_VID_SET_GAIN,&tvh->tv_param->gain)!=TVI_CONTROL_TRUE)
MP_WARN(tvh, "Unable to set gain control!\n");
return 0;
}
static void demux_close_tv(demuxer_t *demuxer)
{
tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
if (!tvh) return;
tv_uninit(tvh);
free(tvh);
demuxer->priv=NULL;
}
static int demux_tv_fill_buffer(demuxer_t *demux)
{
tvi_handle_t *tvh=(tvi_handle_t*)(demux->priv);
demux_packet_t* dp;
unsigned int len=0;
struct sh_stream *want_audio = NULL, *want_video = NULL;
int num_streams = demux_get_num_stream(demux);
for (int n = 0; n < num_streams; n++) {
struct sh_stream *sh = demux_get_stream(demux, n);
if (!demux_has_packet(sh) && demux_stream_is_selected(sh)) {
if (sh->type == STREAM_AUDIO)
want_audio = sh;
if (sh->type == STREAM_VIDEO)
want_video = sh;
}
}
/* ================== ADD AUDIO PACKET =================== */
if (want_audio && tvh->tv_param->audio &&
tvh->functions->control(tvh->priv,
TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
{
len = tvh->functions->get_audio_framesize(tvh->priv);
dp=new_demux_packet(len);
if (dp) {
dp->keyframe = true;
dp->pts=tvh->functions->grab_audio_frame(tvh->priv, dp->buffer,len);
demux_add_packet(want_audio, dp);
}
}
/* ================== ADD VIDEO PACKET =================== */
if (want_video && tvh->functions->control(tvh->priv,
TVI_CONTROL_IS_VIDEO, 0) == TVI_CONTROL_TRUE)
{
len = tvh->functions->get_video_framesize(tvh->priv);
dp=new_demux_packet(len);
if (dp) {
dp->keyframe = true;
dp->pts=tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
demux_add_packet(want_video, dp);
}
}
if (tvh->tv_param->scan) tv_scan(tvh);
return 1;
}
static int demux_tv_control(demuxer_t *demuxer, int cmd, void *arg)
{
tvi_handle_t *tvh=(tvi_handle_t*)(demuxer->priv);
if (cmd != DEMUXER_CTRL_STREAM_CTRL)
return CONTROL_UNKNOWN;
struct demux_ctrl_stream_ctrl *ctrl = arg;
ctrl->res = tv_stream_control(tvh, ctrl->ctrl, ctrl->arg);
return CONTROL_OK;
}
const demuxer_desc_t demuxer_desc_tv = {
.name = "tv",
.desc = "TV card demuxer",
.fill_buffer = demux_tv_fill_buffer,
.control = demux_tv_control,
.open = demux_open_tv,
.close = demux_close_tv,
};
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