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/*
TV subsystem for libMPDemux by Alex
API idea based on libvo2's
UNDER HEAVY DEVELOPEMENT, DO NOT USE! :)
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#ifdef USE_TV
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "tv.h"
/* some default values */
unsigned long tv_param_freq = 0;
char *tv_param_channel = "0";
char *tv_param_norm = "pal";
int tv_param_on = 0;
char *tv_param_device = NULL;
char *tv_param_driver = "dummy";
int tv_param_width = -1;
int tv_param_height = -1;
int tv_param_input = 0; /* used in v4l and bttv */
/* ================== DEMUX_TV ===================== */
/*
Return value:
0 = EOF(?) or no stream
1 = successfully read a packet
*/
/* fill demux->video and demux->audio */
int demux_tv_fill_buffer(demuxer_t *demux, tvi_handle_t *tvh)
{
int seq = tvh->seq;
demux_stream_t *ds_video = NULL;
demux_packet_t *dp_video = NULL;
demux_stream_t *ds_audio = NULL;
demux_packet_t *dp_audio = NULL;
int len_video, len_audio;
printf("demux_tv_fill_buffer(sequence:%d) called!\n", seq);
demux->filepos = -1;
seq++;
tvh->seq++;
/* ================== ADD VIDEO PACKET =================== */
len_video = tvh->functions->get_video_framesize(tvh->priv);
ds_video = demux->video;
if (!ds_video->asf_packet)
{
/* create new packet */
dp_video = new_demux_packet(len_video);
// printf("new dp_video->buffer: %p (%d bytes)\n", dp_video, len_video);
tvh->functions->grab_video_frame(tvh->priv, dp_video->buffer, len_video);
dp_video->pos = demux->filepos;
ds_video->asf_packet = dp_video;
ds_video->asf_seq = seq;
}
else if (ds_video->asf_packet)
{
if (ds_video->asf_seq != seq)
{
/* close segment, finalize packet */
ds_add_packet(ds_video, ds_video->asf_packet);
ds_video->asf_packet = NULL;
}
else
{
/* append data to segment */
dp_video = ds_video->asf_packet;
dp_video->buffer = realloc(dp_video->buffer, dp_video->len+len_video);
// printf("dp_video->buffer: %p (%d bytes)\n", dp_video, dp_video->len+len_video);
tvh->functions->grab_video_frame(tvh->priv, dp_video->buffer+dp_video->len, len_video);
mp_dbg(MSGT_DEMUX,MSGL_DBG4, "video data appended %d+%d\n", dp_video->len, len_video);
dp_video->len += len_video;
}
}
/* ================== ADD AUDIO PACKET =================== */
if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) != TVI_CONTROL_TRUE)
return 1; /* no audio, only video */
len_audio = tvh->functions->get_audio_framesize(tvh->priv);
ds_audio = demux->audio;
if (!ds_audio->asf_packet)
{
dp_audio = new_demux_packet(len_audio);
tvh->functions->grab_audio_frame(tvh->priv, dp_audio->buffer, len_audio);
dp_audio->pos = demux->filepos;
ds_audio->asf_packet = dp_audio;
ds_audio->asf_seq = seq;
}
else if (ds_audio->asf_packet)
{
if (ds_audio->asf_seq != seq)
{
ds_add_packet(ds_audio, ds_audio->asf_packet);
ds_audio->asf_packet = NULL;
}
else
{
dp_audio = ds_audio->asf_packet;
dp_audio->buffer = realloc(dp_audio->buffer, dp_audio->len+len_audio);
tvh->functions->grab_audio_frame(tvh->priv, dp_audio->buffer+dp_audio->len, len_audio);
mp_dbg(MSGT_DEMUX,MSGL_DBG4, "audio data appended %d+%d\n", dp_audio->len, len_audio);
dp_audio->len += len_audio;
}
}
return 1;
}
int demux_open_tv(demuxer_t *demuxer, tvi_handle_t *tvh)
{
sh_video_t *sh_video = NULL;
sh_audio_t *sh_audio = NULL;
tvi_functions_t *funcs = tvh->functions;
if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
{
printf("Error: no video input present!\n");
return;
}
sh_video = new_sh_video(demuxer, 0);
/* hack to use YUV 4:2:0 format ;) */
sh_video->format = IMGFMT_YV12;
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &sh_video->format);
/* get IMGFMT_ */
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format);
if (IMGFMT_IS_RGB(sh_video->format) || IMGFMT_IS_BGR(sh_video->format))
sh_video->format = 0x0;
/* set FPS and FRAMETIME */
if(!sh_video->fps)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &sh_video->fps) != TVI_CONTROL_TRUE)
sh_video->fps = 24.0f;
}
sh_video->frametime = 1.0f/sh_video->fps;
/* set width */
if (tv_param_width != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tv_param_width) == TVI_CONTROL_TRUE)
{
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tv_param_width);
sh_video->disp_w = tv_param_width;
}
else
{
printf("Unable set requested width: %d\n", tv_param_width);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
tv_param_width = sh_video->disp_w;
}
}
else
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
/* set height */
if (tv_param_height != -1)
{
if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tv_param_height) == TVI_CONTROL_TRUE)
{
funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tv_param_height);
sh_video->disp_h = tv_param_height;
}
else
{
printf("Unable set requested height: %d\n", tv_param_height);
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
tv_param_height = sh_video->disp_h;
}
}
else
funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
printf("Output size: %dx%d\n", sh_video->disp_w, sh_video->disp_h);
demuxer->video->sh = sh_video;
sh_video->ds = demuxer->video;
demuxer->video->id = 0;
/* here comes audio init */
if (funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
{
int audio_format;
sh_audio = new_sh_audio(demuxer, 0);
sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
memset(sh_audio->wf, 0, sizeof(WAVEFORMATEX));
/* yeah, audio is present */
if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
goto no_audio;
switch(audio_format)
{
case AFMT_U8:
case AFMT_S8:
case AFMT_U16_LE:
case AFMT_U16_BE:
case AFMT_S16_LE:
case AFMT_S16_BE:
case AFMT_S32_LE:
case AFMT_S32_BE:
sh_audio->format = 0x1; /* PCM */
break;
case AFMT_IMA_ADPCM:
case AFMT_MU_LAW:
case AFMT_A_LAW:
case AFMT_MPEG:
case AFMT_AC3:
default:
printf("%s unsupported!\n", audio_out_format_name(audio_format));
goto no_audio;
}
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS, &sh_audio->wf->nChannels);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE, &sh_audio->wf->nSamplesPerSec);
funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLESIZE, &sh_audio->wf->nAvgBytesPerSec);
demuxer->audio->sh = sh_audio;
sh_audio->ds = demuxer->audio;
demuxer->audio->id = 0;
}
no_audio:
/* set some params got from cmdline */
funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tv_param_input);
/* set freq in MHz - change this to float ! */
funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &tv_param_freq);
funcs->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &tv_param_freq);
printf("freq: %lu\n", tv_param_freq);
/* also start device! */
funcs->start(tvh->priv);
}
/* ================== STREAM_TV ===================== */
tvi_handle_t *tv_begin(void)
{
if (!strcmp(tv_param_driver, "dummy"))
return (tvi_handle_t *)tvi_init_dummy(tv_param_device);
if (!strcmp(tv_param_driver, "v4l"))
return (tvi_handle_t *)tvi_init_v4l(tv_param_device);
mp_msg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param_driver);
return(NULL);
}
int tv_init(tvi_handle_t *tvh)
{
tvi_param_t *params;
printf("Selected driver: %s\n", tvh->info->short_name);
printf(" name: %s\n", tvh->info->name);
printf(" author: %s\n", tvh->info->author);
if (tvh->info->comment)
printf(" comment: %s\n", tvh->info->comment);
params = malloc(sizeof(tvi_param_t)*2);
params[0].opt = malloc(strlen("input"));
sprintf((char *)params[0].opt, "input");
params[0].value = malloc(sizeof(int));
(int)*(void **)params[0].value = tv_param_input;
params[1].opt = params[1].value = NULL;
return tvh->functions->init(tvh->priv, params);
}
#endif /* USE_TV */
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