--- /dev/null
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+
+#ifdef HAVE_VIDEO4LINUX
+
+// V4L2 is incompatible with large file support
+// ALPHA C++ can't compile 64 bit headers
+#undef _FILE_OFFSET_BITS
+#undef _LARGEFILE_SOURCE
+#undef _LARGEFILE64_SOURCE
+
+
+#include "assets.h"
+#include "bcsignals.h"
+#include "channel.h"
+#include "chantables.h"
+#include "clip.h"
+#include "file.h"
+#include "picture.h"
+#include "preferences.h"
+#include "recordconfig.h"
+#include "vdevicev4l.h"
+#include "vframe.h"
+#include "videodevice.h"
+
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <string.h>
+
+VDeviceV4L::VDeviceV4L(VideoDevice *device)
+ : VDeviceBase(device)
+{
+ initialize();
+}
+
+VDeviceV4L::~VDeviceV4L()
+{
+}
+
+int VDeviceV4L::initialize()
+{
+ capture_buffer = 0;
+ capture_frame_number = 0;
+ read_frame_number = 0;
+ shared_memory = 0;
+ initialization_complete = 0;
+ return 0;
+}
+
+int VDeviceV4L::open_input()
+{
+ device->channel->use_frequency = 1;
+ device->channel->use_fine = 1;
+ device->channel->use_norm = 1;
+ device->channel->use_input = 1;
+
+
+ device->picture->use_brightness = 1;
+ device->picture->use_contrast = 1;
+ device->picture->use_color = 1;
+ device->picture->use_hue = 1;
+ device->picture->use_whiteness = 1;
+
+ if((input_fd = open(device->in_config->v4l_in_device, O_RDWR)) < 0)
+ {
+ perror("VDeviceV4L::open_input");
+ return 1;
+ }
+ else
+ {
+ v4l1_get_inputs();
+ close(input_fd);
+ }
+ return 0;
+}
+
+int VDeviceV4L::close_all()
+{
+ close_v4l();
+ return 0;
+}
+
+int VDeviceV4L::close_v4l()
+{
+ unmap_v4l_shmem();
+ if(input_fd != -1) close(input_fd);
+ return 0;
+}
+
+int VDeviceV4L::unmap_v4l_shmem()
+{
+ if(capture_buffer)
+ {
+ if(shared_memory)
+ munmap(capture_buffer, capture_params.size);
+ else
+ delete capture_buffer;
+ capture_buffer = 0;
+ }
+ return 0;
+}
+
+int VDeviceV4L::v4l_init()
+{
+ input_fd = open(device->in_config->v4l_in_device, O_RDWR);
+
+ if(input_fd < 0)
+ perror("VDeviceV4L::v4l_init");
+ else
+ {
+ set_cloexec_flag(input_fd, 1);
+ set_mute(0);
+ if(ioctl(input_fd, VIDIOCGWIN, &window_params) < 0)
+ perror("VDeviceV4L::v4l_init VIDIOCGWIN");
+ window_params.x = 0;
+ window_params.y = 0;
+ window_params.width = device->in_config->w;
+ window_params.height = device->in_config->h;
+ window_params.chromakey = 0;
+ window_params.flags = 0;
+ window_params.clipcount = 0;
+ if(ioctl(input_fd, VIDIOCSWIN, &window_params) < 0)
+ perror("VDeviceV4L::v4l_init VIDIOCSWIN");
+ if(ioctl(input_fd, VIDIOCGWIN, &window_params) < 0)
+ perror("VDeviceV4L::v4l_init VIDIOCGWIN");
+
+ device->in_config->w = window_params.width;
+ device->in_config->h = window_params.height;
+
+ PictureConfig picture(0);
+ set_picture(&picture);
+
+ if(ioctl(input_fd, VIDIOCGMBUF, &capture_params) < 0)
+ perror("VDeviceV4L::v4l_init VIDIOCGMBUF");
+
+ capture_buffer = (char*)mmap(0,
+ capture_params.size,
+ PROT_READ|PROT_WRITE,
+ MAP_SHARED,
+ input_fd,
+ 0);
+
+ capture_frame_number = 0;
+
+ if(capture_buffer == MAP_FAILED)
+ {
+// Use read instead.
+ perror("VDeviceV4L::v4l_init mmap");
+ shared_memory = 0;
+ capture_buffer = new char[capture_params.size];
+ }
+ else
+ {
+// Get all frames capturing
+ shared_memory = 1;
+ }
+ }
+ got_first_frame = 0;
+ return 0;
+}
+
+void VDeviceV4L::v4l1_start_capture()
+{
+ for(int i = 0; i < MIN(capture_params.frames, device->in_config->capture_length); i++)
+ capture_frame(i);
+}
+
+
+
+
+
+
+
+
+int VDeviceV4L::v4l1_get_inputs()
+{
+ struct video_channel channel_struct;
+ int i = 0, done = 0;
+
+ while(!done && i < 20)
+ {
+ channel_struct.channel = i;
+ if(ioctl(input_fd, VIDIOCGCHAN, &channel_struct) < 0)
+ {
+// Finished
+ done = 1;
+ }
+ else
+ {
+ Channel *channel = new Channel;
+ strcpy(channel->device_name, channel_struct.name);
+ device->input_sources.append(channel);
+ }
+ i++;
+ }
+ return 0;
+}
+
+void VDeviceV4L::set_mute(int muted)
+{
+// Open audio, which obviously is controlled by the video driver.
+// and apparently resets the input source.
+ v4l1_set_mute(muted);
+}
+
+int VDeviceV4L::v4l1_set_mute(int muted)
+{
+ struct video_audio audio;
+
+ if(ioctl(input_fd, VIDIOCGAUDIO, &audio))
+ if(ioctl(input_fd, VIDIOCGAUDIO, &audio) < 0)
+ perror("VDeviceV4L::ioctl VIDIOCGAUDIO");
+
+ audio.volume = 65535;
+ audio.bass = 65535;
+ audio.treble = 65535;
+ if(muted)
+ audio.flags |= VIDEO_AUDIO_MUTE | VIDEO_AUDIO_VOLUME;
+ else
+ audio.flags &= ~VIDEO_AUDIO_MUTE;
+
+ if(ioctl(input_fd, VIDIOCSAUDIO, &audio) < 0)
+ perror("VDeviceV4L::ioctl VIDIOCSAUDIO");
+ return 0;
+}
+
+
+int VDeviceV4L::set_cloexec_flag(int desc, int value)
+{
+ int oldflags = fcntl(desc, F_GETFD, 0);
+ if(oldflags < 0) return oldflags;
+ if(value != 0)
+ oldflags |= FD_CLOEXEC;
+ else
+ oldflags &= ~FD_CLOEXEC;
+ return fcntl(desc, F_SETFD, oldflags);
+}
+
+
+
+
+
+int VDeviceV4L::get_best_colormodel(Asset *asset)
+{
+ int result = BC_RGB888;
+
+// Get best colormodel for hardware acceleration
+
+ result = File::get_best_colormodel(asset, device->in_config->driver);
+
+
+// Need to get color model before opening device but don't call this
+// unless you want to open the device either.
+ if(!initialization_complete)
+ {
+ device_colormodel = translate_colormodel(result);
+ this->colormodel = result;
+ v4l_init();
+ initialization_complete = 1;
+ }
+// printf("VDeviceV4L::get_best_colormodel %c%c%c%c\n",
+// ((char*)&device_colormodel)[0],
+// ((char*)&device_colormodel)[1],
+// ((char*)&device_colormodel)[2],
+// ((char*)&device_colormodel)[3]);
+ return result;
+}
+
+unsigned long VDeviceV4L::translate_colormodel(int colormodel)
+{
+ unsigned long result = 0;
+ switch(colormodel)
+ {
+ case BC_YUV422: result = VIDEO_PALETTE_YUV422; break;
+ case BC_YUV420P: result = VIDEO_PALETTE_YUV420P; break;
+ case BC_YUV422P: result = VIDEO_PALETTE_YUV422P; break;
+ case BC_YUV411P: result = VIDEO_PALETTE_YUV411P; break;
+ case BC_RGB888: result = VIDEO_PALETTE_RGB24; break;
+ default: result = VIDEO_PALETTE_RGB24; break;
+ }
+//printf("VDeviceV4L::translate_colormodel %d\n", result);
+ return result;
+}
+
+int VDeviceV4L::set_channel(Channel *channel)
+{
+ return v4l1_set_channel(channel);
+}
+
+int VDeviceV4L::v4l1_set_channel(Channel *channel)
+{
+ struct video_channel channel_struct;
+ struct video_tuner tuner_struct;
+ unsigned long new_freq;
+
+// Mute changed the input to TV
+// set_mute(1);
+
+//printf("VDeviceV4L::v4l1_set_channel 1 %d\n", channel->input);
+// Read norm/input defaults
+ channel_struct.channel = channel->input;
+ if(ioctl(input_fd, VIDIOCGCHAN, &channel_struct) < 0)
+ perror("VDeviceV4L::v4l1_set_channel VIDIOCGCHAN");
+
+// Set norm/input
+ channel_struct.channel = channel->input;
+ channel_struct.norm = v4l1_get_norm(channel->norm);
+ if(ioctl(input_fd, VIDIOCSCHAN, &channel_struct) < 0)
+ perror("VDeviceV4L::v4l1_set_channel VIDIOCSCHAN");
+
+ if(channel_struct.flags & VIDEO_VC_TUNER)
+ {
+// Read tuner defaults
+ tuner_struct.tuner = channel->input;
+ if(ioctl(input_fd, VIDIOCGTUNER, &tuner_struct) < 0)
+ perror("VDeviceV4L::v4l1_set_channel VIDIOCGTUNER");
+
+// Set tuner
+ tuner_struct.mode = v4l1_get_norm(channel->norm);
+ if(ioctl(input_fd, VIDIOCSTUNER, &tuner_struct) < 0)
+ perror("VDeviceV4L::v4l1_set_channel VIDIOCSTUNER");
+
+ new_freq = chanlists[channel->freqtable].list[channel->entry].freq;
+ new_freq = (int)(new_freq * 0.016);
+ new_freq += channel->fine_tune;
+
+ if(ioctl(input_fd, VIDIOCSFREQ, &new_freq) < 0)
+ perror("VDeviceV4L::v4l1_set_channel VIDIOCSFREQ");
+ }
+// set_mute(0);
+ return 0;
+}
+
+int VDeviceV4L::v4l1_get_norm(int norm)
+{
+ switch(norm)
+ {
+ case NTSC: return VIDEO_MODE_NTSC; break;
+ case PAL: return VIDEO_MODE_PAL; break;
+ case SECAM: return VIDEO_MODE_SECAM; break;
+ }
+ return 0;
+}
+
+int VDeviceV4L::set_picture(PictureConfig *picture)
+{
+ v4l1_set_picture(picture);
+ return 0;
+}
+
+
+int VDeviceV4L::v4l1_set_picture(PictureConfig *picture)
+{
+ int brightness = (int)((float)picture->brightness / 100 * 32767 + 32768);
+ int hue = (int)((float)picture->hue / 100 * 32767 + 32768);
+ int color = (int)((float)picture->color / 100 * 32767 + 32768);
+ int contrast = (int)((float)picture->contrast / 100 * 32767 + 32768);
+ int whiteness = (int)((float)picture->whiteness / 100 * 32767 + 32768);
+
+ if(ioctl(input_fd, VIDIOCGPICT, &picture_params) < 0)
+ perror("VDeviceV4L::v4l1_set_picture VIDIOCGPICT");
+ picture_params.brightness = brightness;
+ picture_params.hue = hue;
+ picture_params.colour = color;
+ picture_params.contrast = contrast;
+ picture_params.whiteness = whiteness;
+// Bogus. Values are only set in the capture routine.
+ picture_params.depth = 3;
+ picture_params.palette = device_colormodel;
+ if(ioctl(input_fd, VIDIOCSPICT, &picture_params) < 0)
+ perror("VDeviceV4L::v4l1_set_picture VIDIOCSPICT");
+ if(ioctl(input_fd, VIDIOCGPICT, &picture_params) < 0)
+ perror("VDeviceV4L::v4l1_set_picture VIDIOCGPICT");
+ return 0;
+}
+
+
+int VDeviceV4L::capture_frame(int capture_frame_number)
+{
+ struct video_mmap params;
+ params.frame = capture_frame_number;
+ params.width = device->in_config->w;
+ params.height = device->in_config->h;
+// Required to actually set the palette.
+ params.format = device_colormodel;
+// Tells the driver the buffer is available for writing
+ if(ioctl(input_fd, VIDIOCMCAPTURE, ¶ms) < 0)
+ perror("VDeviceV4L::capture_frame VIDIOCMCAPTURE");
+ return 0;
+}
+
+int VDeviceV4L::wait_v4l_frame()
+{
+//printf("VDeviceV4L::wait_v4l_frame 1 %d\n", capture_frame_number);
+ if(ioctl(input_fd, VIDIOCSYNC, &capture_frame_number))
+ perror("VDeviceV4L::wait_v4l_frame VIDIOCSYNC");
+//printf("VDeviceV4L::wait_v4l_frame 2 %d\n", capture_frame_number);
+ return 0;
+}
+
+int VDeviceV4L::read_v4l_frame(VFrame *frame)
+{
+ frame_to_vframe(frame, (unsigned char*)capture_buffer + capture_params.offsets[capture_frame_number]);
+ return 0;
+}
+
+#ifndef MIN
+#define MIN(x, y) ((x) < (y) ? (x) : (y))
+#endif
+
+int VDeviceV4L::frame_to_vframe(VFrame *frame, unsigned char *input)
+{
+ int inwidth, inheight;
+ int width, height;
+
+ inwidth = window_params.width;
+ inheight = window_params.height;
+
+ width = MIN(inwidth, frame->get_w());
+ height = MIN(inheight, frame->get_h());
+//printf("VDeviceV4L::frame_to_vframe %d %d\n", colormodel, frame->get_color_model());
+
+ if(frame->get_color_model() == colormodel)
+ {
+ switch(frame->get_color_model())
+ {
+ case BC_RGB888:
+ {
+ unsigned char *row_in;
+ unsigned char *row_out_start, *row_out_end;
+ int bytes_per_inrow = inwidth * 3;
+ int bytes_per_outrow = frame->get_bytes_per_line();
+ unsigned char **rows_out = frame->get_rows();
+
+ for(int i = 0; i < frame->get_h(); i++)
+ {
+ row_in = input + bytes_per_inrow * i;
+ row_out_start = rows_out[i];
+ row_out_end = row_out_start +
+ MIN(bytes_per_outrow, bytes_per_inrow);
+
+ while(row_out_start < row_out_end)
+ {
+ *row_out_start++ = row_in[2];
+ *row_out_start++ = row_in[1];
+ *row_out_start++ = row_in[0];
+ row_in += 3;
+ }
+ }
+ break;
+ }
+
+ case BC_YUV420P:
+ case BC_YUV411P:
+ memcpy(frame->get_y(), input, width * height);
+ memcpy(frame->get_u(), input + width * height, width * height / 4);
+ memcpy(frame->get_v(), input + width * height + width * height / 4, width * height / 4);
+ break;
+
+ case BC_YUV422P:
+ memcpy(frame->get_y(), input, width * height);
+ memcpy(frame->get_u(), input + width * height, width * height / 2);
+ memcpy(frame->get_v(), input + width * height + width * height / 2, width * height / 2);
+ break;
+
+ case BC_YUV422:
+ memcpy(frame->get_data(),
+ input,
+ VFrame::calculate_data_size(width,
+ height,
+ -1,
+ frame->get_color_model()));
+ break;
+ }
+ }
+ else
+ {
+ VFrame *in_frame = new VFrame(input,
+ -1,
+ inwidth,
+ inheight,
+ colormodel,
+ -1);
+ BC_CModels::transfer(frame->get_rows(),
+ in_frame->get_rows(),
+ frame->get_y(),
+ frame->get_u(),
+ frame->get_v(),
+ in_frame->get_y(),
+ in_frame->get_u(),
+ in_frame->get_v(),
+ 0,
+ 0,
+ inwidth,
+ inheight,
+ 0,
+ 0,
+ frame->get_w(),
+ frame->get_h(),
+ colormodel,
+ frame->get_color_model(),
+ 0,
+ inwidth,
+ inheight);
+ }
+ return 0;
+}
+
+
+
+int VDeviceV4L::next_frame(int previous_frame)
+{
+ int result = previous_frame + 1;
+
+ if(result >= MIN(capture_params.frames, device->in_config->capture_length)) result = 0;
+ return result;
+}
+
+int VDeviceV4L::read_buffer(VFrame *frame)
+{
+SET_TRACE
+ if(shared_memory)
+ {
+// Read the current frame
+ if(!got_first_frame) v4l1_start_capture();
+ wait_v4l_frame();
+ read_v4l_frame(frame);
+// Free this frame up for capturing
+ capture_frame(capture_frame_number);
+// Advance the frame to capture.
+ capture_frame_number = next_frame(capture_frame_number);
+ }
+ else
+ {
+ read(input_fd, capture_buffer, capture_params.size);
+ }
+
+ got_first_frame = 1;
+SET_TRACE
+ return 0;
+}
+
+
+
+
+#endif // HAVE_VIDEO4LINUX
+
+
+
+
+
+
projects / goodguy / history.git / blobdiff