summaryrefslogtreecommitdiffstats
path: root/libmpdemux/tv.c
diff options
context:
space:
mode:
Diffstat (limited to 'libmpdemux/tv.c')
-rw-r--r--libmpdemux/tv.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/libmpdemux/tv.c b/libmpdemux/tv.c
new file mode 100644
index 0000000000..ed1377433c
--- /dev/null
+++ b/libmpdemux/tv.c
@@ -0,0 +1,215 @@
+/*
+ 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 "tv.h"
+#include "mp_msg.h"
+#include "help_mp.h"
+
+#include "stream.h"
+#include "demuxer.h"
+#include "stheader.h"
+
+/* global! */
+tvi_handle_t *tv_handler;
+
+/* some default values */
+float tv_param_freq = 0.0;
+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;
+
+
+/* ================== 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)
+{
+ int 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;
+
+ demux->filepos = -1;
+
+ /* ================== ADD VIDEO PACKET =================== */
+ len_video = tv_handler->functions->get_video_framesize(tv_handler->priv);
+ ds_video = demux->video;
+
+ if (!ds_video)
+ {
+ dp_video = new_demux_packet(len_video);
+ tv_handler->functions->grab_video_frame(tv_handler->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)
+ {
+ ds_add_packet(ds_video, ds_video->asf_packet);
+ ds_video->asf_packet = NULL;
+ }
+ else
+ {
+ dp_video = ds_video->asf_packet;
+ dp_video->buffer = realloc(dp_video->buffer, dp_video->len+len_video);
+ tv_handler->functions->grab_video_frame(tv_handler->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 =================== */
+ len_audio = tv_handler->functions->get_audio_framesize(tv_handler->priv);
+ ds_audio = demux->audio;
+
+ if (!ds_audio)
+ {
+ dp_audio = new_demux_packet(len_audio);
+ tv_handler->functions->grab_audio_frame(tv_handler->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);
+ tv_handler->functions->grab_audio_frame(tv_handler->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)
+{
+ sh_video_t *sh_video;
+ tvi_handle_t *tvh = tv_handler;
+ tvi_functions_t *funcs = tvh->functions;
+
+ sh_video = new_sh_video(demuxer,0);
+
+// sh->format=0x7476696e; /* "tvin" */
+ if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_FORMAT, &sh_video->format) != TVI_CONTROL_TRUE)
+ sh_video->format = 0x00000000;
+
+ 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);
+
+ /* emulate BITMAPINFOHEADER */
+ sh_video->bih = malloc(sizeof(BITMAPINFOHEADER));
+ memset(sh_video->bih, 0, sizeof(BITMAPINFOHEADER));
+ sh_video->bih->biSize = 40;
+ sh_video->bih->biWidth = sh_video->disp_w;
+ sh_video->bih->biHeight = sh_video->disp_h;
+ if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_PLANES, &sh_video->bih->biPlanes) != TVI_CONTROL_TRUE)
+ sh_video->bih->biPlanes = 1;
+ if (funcs->control(tvh->priv, TVI_CONTROL_VID_GET_BITS, &sh_video->bih->biBitCount) != TVI_CONTROL_TRUE)
+ sh_video->bih->biBitCount = 12;
+ sh_video->bih->biCompression = sh_video->format;
+ sh_video->bih->biSizeImage = sh_video->bih->biWidth * sh_video->bih->biHeight * 3;
+
+ demuxer->video->sh = sh_video;
+ sh_video->ds = demuxer->video;
+ demuxer->video->id = 0;
+
+ /* here comes audio init */
+}
+
+/* ================== STREAM_TV ===================== */
+tvi_handle_t *tv_begin()
+{
+ if (!strcmp(tv_param_driver, "dummy"))
+ return tvi_init_dummy(tv_param_device);
+ if (!strcmp(tv_param_driver, "v4l"))
+ return tvi_init_v4l(tv_param_device);
+
+ mp_msg(MSGT_TV, MSGL_ERR, "No such driver: %s\n", tv_param_driver);
+ return(NULL);
+}
+
+void tv_init(tvi_handle_t *tvi)
+{
+ printf("Using driver: %s\n", tvi->info->short_name);
+ printf(" name: %s\n", tvi->info->name);
+ printf(" author: %s\n", tvi->info->author);
+ if (tvi->info->comment)
+ printf(" comment: %s\n", tvi->info->comment);
+
+ return tvi->functions->init(tvi->priv);
+}
+#endif /* USE_TV */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 11:22:13 +0000