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Diffstat (limited to 'contrib/ffmpeg/libavformat/grab_bktr.c')
-rw-r--r--contrib/ffmpeg/libavformat/grab_bktr.c320
1 files changed, 0 insertions, 320 deletions
diff --git a/contrib/ffmpeg/libavformat/grab_bktr.c b/contrib/ffmpeg/libavformat/grab_bktr.c
deleted file mode 100644
index 100653db7..000000000
--- a/contrib/ffmpeg/libavformat/grab_bktr.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * *BSD video grab interface
- * Copyright (c) 2002 Steve O'Hara-Smith
- * based on
- * Linux video grab interface
- * Copyright (c) 2000,2001 Gerard Lantau.
- * and
- * simple_grab.c Copyright (c) 1999 Roger Hardiman
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include "avformat.h"
-#if defined (HAVE_DEV_BKTR_IOCTL_METEOR_H) && defined (HAVE_DEV_BKTR_IOCTL_BT848_H)
-# include <dev/bktr/ioctl_meteor.h>
-# include <dev/bktr/ioctl_bt848.h>
-#elif defined (HAVE_MACHINE_IOCTL_METEOR_H) && defined (HAVE_MACHINE_IOCTL_BT848_H)
-# include <machine/ioctl_meteor.h>
-# include <machine/ioctl_bt848.h>
-#elif defined (HAVE_DEV_VIDEO_METEOR_IOCTL_METEOR_H) && defined (HAVE_DEV_VIDEO_METEOR_IOCTL_BT848_H)
-# include <dev/video/meteor/ioctl_meteor.h>
-# include <dev/video/bktr/ioctl_bt848.h>
-#elif HAVE_DEV_IC_BT8XX_H
-# include <dev/ic/bt8xx.h>
-#endif
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <sys/time.h>
-#include <signal.h>
-
-typedef struct {
- int video_fd;
- int tuner_fd;
- int width, height;
- int frame_rate;
- int frame_rate_base;
- u_int64_t per_frame;
-} VideoData;
-
-
-#define PAL 1
-#define PALBDGHI 1
-#define NTSC 2
-#define NTSCM 2
-#define SECAM 3
-#define PALN 4
-#define PALM 5
-#define NTSCJ 6
-
-/* PAL is 768 x 576. NTSC is 640 x 480 */
-#define PAL_HEIGHT 576
-#define SECAM_HEIGHT 576
-#define NTSC_HEIGHT 480
-
-#ifndef VIDEO_FORMAT
-#define VIDEO_FORMAT NTSC
-#endif
-
-static int bktr_dev[] = { METEOR_DEV0, METEOR_DEV1, METEOR_DEV2,
- METEOR_DEV3, METEOR_DEV_SVIDEO };
-
-uint8_t *video_buf;
-size_t video_buf_size;
-u_int64_t last_frame_time;
-volatile sig_atomic_t nsignals;
-
-
-static void catchsignal(int signal)
-{
- nsignals++;
- return;
-}
-
-static int bktr_init(const char *video_device, int width, int height,
- int format, int *video_fd, int *tuner_fd, int idev, double frequency)
-{
- struct meteor_geomet geo;
- int h_max;
- long ioctl_frequency;
- char *arg;
- int c;
- struct sigaction act, old;
-
- if (idev < 0 || idev > 4)
- {
- arg = getenv ("BKTR_DEV");
- if (arg)
- idev = atoi (arg);
- if (idev < 0 || idev > 4)
- idev = 1;
- }
-
- if (format < 1 || format > 6)
- {
- arg = getenv ("BKTR_FORMAT");
- if (arg)
- format = atoi (arg);
- if (format < 1 || format > 6)
- format = VIDEO_FORMAT;
- }
-
- if (frequency <= 0)
- {
- arg = getenv ("BKTR_FREQUENCY");
- if (arg)
- frequency = atof (arg);
- if (frequency <= 0)
- frequency = 0.0;
- }
-
- memset(&act, 0, sizeof(act));
- sigemptyset(&act.sa_mask);
- act.sa_handler = catchsignal;
- sigaction(SIGUSR1, &act, &old);
-
- *tuner_fd = open("/dev/tuner0", O_RDONLY);
- if (*tuner_fd < 0)
- perror("Warning: Tuner not opened, continuing");
-
- *video_fd = open(video_device, O_RDONLY);
- if (*video_fd < 0) {
- perror(video_device);
- return -1;
- }
-
- geo.rows = height;
- geo.columns = width;
- geo.frames = 1;
- geo.oformat = METEOR_GEO_YUV_422 | METEOR_GEO_YUV_12;
-
- switch (format) {
- case PAL: h_max = PAL_HEIGHT; c = BT848_IFORM_F_PALBDGHI; break;
- case PALN: h_max = PAL_HEIGHT; c = BT848_IFORM_F_PALN; break;
- case PALM: h_max = PAL_HEIGHT; c = BT848_IFORM_F_PALM; break;
- case SECAM: h_max = SECAM_HEIGHT; c = BT848_IFORM_F_SECAM; break;
- case NTSC: h_max = NTSC_HEIGHT; c = BT848_IFORM_F_NTSCM; break;
- case NTSCJ: h_max = NTSC_HEIGHT; c = BT848_IFORM_F_NTSCJ; break;
- default: h_max = PAL_HEIGHT; c = BT848_IFORM_F_PALBDGHI; break;
- }
-
- if (height <= h_max / 2)
- geo.oformat |= METEOR_GEO_EVEN_ONLY;
-
- if (ioctl(*video_fd, METEORSETGEO, &geo) < 0) {
- perror("METEORSETGEO");
- return -1;
- }
-
- if (ioctl(*video_fd, BT848SFMT, &c) < 0) {
- perror("BT848SFMT");
- return -1;
- }
-
- c = bktr_dev[idev];
- if (ioctl(*video_fd, METEORSINPUT, &c) < 0) {
- perror("METEORSINPUT");
- return -1;
- }
-
- video_buf_size = width * height * 12 / 8;
-
- video_buf = (uint8_t *)mmap((caddr_t)0, video_buf_size,
- PROT_READ, MAP_SHARED, *video_fd, (off_t)0);
- if (video_buf == MAP_FAILED) {
- perror("mmap");
- return -1;
- }
-
- if (frequency != 0.0) {
- ioctl_frequency = (unsigned long)(frequency*16);
- if (ioctl(*tuner_fd, TVTUNER_SETFREQ, &ioctl_frequency) < 0)
- perror("TVTUNER_SETFREQ");
- }
-
- c = AUDIO_UNMUTE;
- if (ioctl(*tuner_fd, BT848_SAUDIO, &c) < 0)
- perror("TVTUNER_SAUDIO");
-
- c = METEOR_CAP_CONTINOUS;
- ioctl(*video_fd, METEORCAPTUR, &c);
-
- c = SIGUSR1;
- ioctl(*video_fd, METEORSSIGNAL, &c);
-
- return 0;
-}
-
-static void bktr_getframe(u_int64_t per_frame)
-{
- u_int64_t curtime;
-
- curtime = av_gettime();
- if (!last_frame_time
- || ((last_frame_time + per_frame) > curtime)) {
- if (!usleep(last_frame_time + per_frame + per_frame / 8 - curtime)) {
- if (!nsignals)
- av_log(NULL, AV_LOG_INFO,
- "SLEPT NO signals - %d microseconds late\n",
- (int)(av_gettime() - last_frame_time - per_frame));
- }
- }
- nsignals = 0;
- last_frame_time = curtime;
-}
-
-
-/* note: we support only one picture read at a time */
-static int grab_read_packet(AVFormatContext *s1, AVPacket *pkt)
-{
- VideoData *s = s1->priv_data;
-
- if (av_new_packet(pkt, video_buf_size) < 0)
- return AVERROR(EIO);
-
- bktr_getframe(s->per_frame);
-
- pkt->pts = av_gettime();
- memcpy(pkt->data, video_buf, video_buf_size);
-
- return video_buf_size;
-}
-
-static int grab_read_header(AVFormatContext *s1, AVFormatParameters *ap)
-{
- VideoData *s = s1->priv_data;
- AVStream *st;
- int width, height;
- int frame_rate;
- int frame_rate_base;
- int format = -1;
-
- if (ap->width <= 0 || ap->height <= 0 || ap->time_base.den <= 0)
- return -1;
-
- width = ap->width;
- height = ap->height;
- frame_rate = ap->time_base.den;
- frame_rate_base = ap->time_base.num;
-
- st = av_new_stream(s1, 0);
- if (!st)
- return AVERROR(ENOMEM);
- av_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in use */
-
- s->width = width;
- s->height = height;
- s->frame_rate = frame_rate;
- s->frame_rate_base = frame_rate_base;
- s->per_frame = ((u_int64_t)1000000 * s->frame_rate_base) / s->frame_rate;
-
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->pix_fmt = PIX_FMT_YUV420P;
- st->codec->codec_id = CODEC_ID_RAWVIDEO;
- st->codec->width = width;
- st->codec->height = height;
- st->codec->time_base.den = frame_rate;
- st->codec->time_base.num = frame_rate_base;
-
- if (ap->standard) {
- if (!strcasecmp(ap->standard, "pal"))
- format = PAL;
- else if (!strcasecmp(ap->standard, "secam"))
- format = SECAM;
- else if (!strcasecmp(ap->standard, "ntsc"))
- format = NTSC;
- }
-
- if (bktr_init(s1->filename, width, height, format,
- &(s->video_fd), &(s->tuner_fd), -1, 0.0) < 0)
- return AVERROR(EIO);
-
- nsignals = 0;
- last_frame_time = 0;
-
- return 0;
-}
-
-static int grab_read_close(AVFormatContext *s1)
-{
- VideoData *s = s1->priv_data;
- int c;
-
- c = METEOR_CAP_STOP_CONT;
- ioctl(s->video_fd, METEORCAPTUR, &c);
- close(s->video_fd);
-
- c = AUDIO_MUTE;
- ioctl(s->tuner_fd, BT848_SAUDIO, &c);
- close(s->tuner_fd);
-
- munmap((caddr_t)video_buf, video_buf_size);
-
- return 0;
-}
-
-AVInputFormat video_grab_device_demuxer = {
- "bktr",
- "video grab",
- sizeof(VideoData),
- NULL,
- grab_read_header,
- grab_read_packet,
- grab_read_close,
- .flags = AVFMT_NOFILE,
-};
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