mirror of https://github.com/mpv-player/mpv
247 lines
6.8 KiB
C
247 lines
6.8 KiB
C
/*
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TV subsystem for libMPDemux by Alex
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API idea based on libvo2's
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UNDER HEAVY DEVELOPEMENT, DO NOT USE! :)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "config.h"
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#ifdef USE_TV
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "tv.h"
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/* some default values */
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unsigned long tv_param_freq = 0;
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char *tv_param_channel = "0";
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char *tv_param_norm = "pal";
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int tv_param_on = 0;
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char *tv_param_device = NULL;
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char *tv_param_driver = "dummy";
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int tv_param_width = -1;
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int tv_param_height = -1;
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int tv_param_input = 0; /* used in v4l and bttv */
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/* ================== DEMUX_TV ===================== */
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/*
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Return value:
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0 = EOF(?) or no stream
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1 = successfully read a packet
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*/
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/* fill demux->video and demux->audio */
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int demux_tv_fill_buffer(demuxer_t *demux, tvi_handle_t *tvh)
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{
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int seq = tvh->seq++;
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demux_packet_t* dp;
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int len;
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printf("demux_tv_fill_buffer(sequence:%d) called!\n", seq);
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// demux->filepos = -1;
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// seq++;
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// tvh->seq++;
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/* ================== ADD VIDEO PACKET =================== */
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len = tvh->functions->get_video_framesize(tvh->priv);
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dp=new_demux_packet(len);
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tvh->functions->grab_video_frame(tvh->priv, dp->buffer, len);
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dp->pts=seq/25.0; //(float)pts/90000.0f;
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//dp->pos=pos;
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//dp->flags=flags;
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// append packet to DS stream:
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ds_add_packet(demux->video,dp);
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/* ================== ADD AUDIO PACKET =================== */
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if (tvh->functions->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) != TVI_CONTROL_TRUE)
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return 1; /* no audio, only video */
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len = tvh->functions->get_audio_framesize(tvh->priv);
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dp=new_demux_packet(len);
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tvh->functions->grab_audio_frame(tvh->priv, dp->buffer, len);
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//dp->pts=pts; //(float)pts/90000.0f;
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//dp->pos=pos;
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//dp->flags=flags;
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// append packet to DS stream:
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ds_add_packet(demux->audio,dp);
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return 1;
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}
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int demux_open_tv(demuxer_t *demuxer, tvi_handle_t *tvh)
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{
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sh_video_t *sh_video = NULL;
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sh_audio_t *sh_audio = NULL;
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tvi_functions_t *funcs = tvh->functions;
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if (funcs->control(tvh->priv, TVI_CONTROL_IS_VIDEO, 0) != TVI_CONTROL_TRUE)
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{
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printf("Error: no video input present!\n");
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return;
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}
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sh_video = new_sh_video(demuxer, 0);
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/* hack to use YUV 4:2:0 format ;) */
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sh_video->format = IMGFMT_UYVY;
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funcs->control(tvh->priv, TVI_CONTROL_VID_SET_FORMAT, &sh_video->format);
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/* get IMGFMT_ */
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funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format);
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// if (IMGFMT_IS_RGB(sh_video->format) || IMGFMT_IS_BGR(sh_video->format))
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sh_video->format = 0x0;
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/* set FPS and FRAMETIME */
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if(!sh_video->fps)
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{
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if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FPS, &sh_video->fps) != TVI_CONTROL_TRUE)
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sh_video->fps = 24.0f;
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}
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sh_video->frametime = 1.0f/sh_video->fps;
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/* set width */
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if (tv_param_width != -1)
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{
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if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_WIDTH, &tv_param_width) == TVI_CONTROL_TRUE)
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{
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funcs->control(tvh->priv, TVI_CONTROL_VID_SET_WIDTH, &tv_param_width);
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sh_video->disp_w = tv_param_width;
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}
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else
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{
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printf("Unable set requested width: %d\n", tv_param_width);
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funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
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tv_param_width = sh_video->disp_w;
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}
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}
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else
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funcs->control(tvh->priv, TVI_CONTROL_VID_GET_WIDTH, &sh_video->disp_w);
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/* set height */
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if (tv_param_height != -1)
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{
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if (funcs->control(tvh->priv, TVI_CONTROL_VID_CHK_HEIGHT, &tv_param_height) == TVI_CONTROL_TRUE)
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{
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funcs->control(tvh->priv, TVI_CONTROL_VID_SET_HEIGHT, &tv_param_height);
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sh_video->disp_h = tv_param_height;
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}
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else
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{
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printf("Unable set requested height: %d\n", tv_param_height);
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funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
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tv_param_height = sh_video->disp_h;
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}
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}
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else
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funcs->control(tvh->priv, TVI_CONTROL_VID_GET_HEIGHT, &sh_video->disp_h);
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printf("Output size: %dx%d\n", sh_video->disp_w, sh_video->disp_h);
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demuxer->video->sh = sh_video;
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sh_video->ds = demuxer->video;
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demuxer->video->id = 0;
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/* here comes audio init */
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if (funcs->control(tvh->priv, TVI_CONTROL_IS_AUDIO, 0) == TVI_CONTROL_TRUE)
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{
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int audio_format;
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sh_audio = new_sh_audio(demuxer, 0);
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sh_audio->wf = malloc(sizeof(WAVEFORMATEX));
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memset(sh_audio->wf, 0, sizeof(WAVEFORMATEX));
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/* yeah, audio is present */
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if (funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_FORMAT, &audio_format) != TVI_CONTROL_TRUE)
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goto no_audio;
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switch(audio_format)
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{
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case AFMT_U8:
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case AFMT_S8:
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case AFMT_U16_LE:
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case AFMT_U16_BE:
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case AFMT_S16_LE:
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case AFMT_S16_BE:
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case AFMT_S32_LE:
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case AFMT_S32_BE:
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sh_audio->format = 0x1; /* PCM */
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break;
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case AFMT_IMA_ADPCM:
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case AFMT_MU_LAW:
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case AFMT_A_LAW:
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case AFMT_MPEG:
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case AFMT_AC3:
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default:
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printf("%s unsupported!\n", audio_out_format_name(audio_format));
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goto no_audio;
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}
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funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_CHANNELS, &sh_audio->wf->nChannels);
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funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLERATE, &sh_audio->wf->nSamplesPerSec);
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funcs->control(tvh->priv, TVI_CONTROL_AUD_GET_SAMPLESIZE, &sh_audio->wf->nAvgBytesPerSec);
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demuxer->audio->sh = sh_audio;
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sh_audio->ds = demuxer->audio;
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demuxer->audio->id = 0;
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}
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no_audio:
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/* set some params got from cmdline */
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funcs->control(tvh->priv, TVI_CONTROL_SPC_SET_INPUT, &tv_param_input);
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/* set freq in MHz - change this to float ! */
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funcs->control(tvh->priv, TVI_CONTROL_TUN_SET_FREQ, &tv_param_freq);
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funcs->control(tvh->priv, TVI_CONTROL_TUN_GET_FREQ, &tv_param_freq);
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printf("freq: %lu\n", tv_param_freq);
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/* also start device! */
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funcs->start(tvh->priv);
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}
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/* ================== STREAM_TV ===================== */
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tvi_handle_t *tv_begin(void)
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{
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if (!strcmp(tv_param_driver, "dummy"))
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return (tvi_handle_t *)tvi_init_dummy(tv_param_device);
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if (!strcmp(tv_param_driver, "v4l"))
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return (tvi_handle_t *)tvi_init_v4l(tv_param_device);
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mp_msg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param_driver);
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return(NULL);
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}
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int tv_init(tvi_handle_t *tvh)
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{
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tvi_param_t *params;
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printf("Selected driver: %s\n", tvh->info->short_name);
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printf(" name: %s\n", tvh->info->name);
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printf(" author: %s\n", tvh->info->author);
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if (tvh->info->comment)
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printf(" comment: %s\n", tvh->info->comment);
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params = malloc(sizeof(tvi_param_t)*2);
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params[0].opt = malloc(strlen("input"));
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sprintf((char *)params[0].opt, "input");
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params[0].value = malloc(sizeof(int));
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(int)*(void **)params[0].value = tv_param_input;
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params[1].opt = params[1].value = NULL;
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return tvh->functions->init(tvh->priv, params);
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}
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#endif /* USE_TV */
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