From b61b0180623a0f7531624c349e3e06b75a9f46e3 Mon Sep 17 00:00:00 2001 From: ben Date: Sun, 29 Jul 2007 19:20:55 +0000 Subject: v4l2 audio/video outputs for linux 2.6.22+ kernels (outputs formerly known as ivtv) git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23925 b3059339-0415-0410-9bf9-f77b7e298cf2 --- libvo/video_out.c | 6 ++ libvo/vo_v4l2.c | 262 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 268 insertions(+) create mode 100644 libvo/vo_v4l2.c (limited to 'libvo') diff --git a/libvo/video_out.c b/libvo/video_out.c index 4b85b99a46..14899b82a5 100644 --- a/libvo/video_out.c +++ b/libvo/video_out.c @@ -103,6 +103,9 @@ extern vo_functions_t video_out_dxr3; #ifdef HAVE_IVTV extern vo_functions_t video_out_ivtv; #endif +#ifdef HAVE_V4L2_DECODER +extern vo_functions_t video_out_v4l2; +#endif #ifdef HAVE_JPEG extern vo_functions_t video_out_jpeg; #endif @@ -214,6 +217,9 @@ vo_functions_t* video_out_drivers[] = #ifdef HAVE_IVTV &video_out_ivtv, #endif +#ifdef HAVE_V4L2_DECODER + &video_out_v4l2, +#endif #ifdef HAVE_ZR &video_out_zr, &video_out_zr2, diff --git a/libvo/vo_v4l2.c b/libvo/vo_v4l2.c new file mode 100644 index 0000000000..65dd22ac35 --- /dev/null +++ b/libvo/vo_v4l2.c @@ -0,0 +1,262 @@ +/* + * Copyright (C) 2007 Benjamin Zores + * Video output for V4L2 hardware MPEG decoders. + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mp_msg.h" +#include "subopt-helper.h" +#include "video_out.h" +#include "video_out_internal.h" +#include "libmpdemux/mpeg_packetizer.h" + +#define DEFAULT_MPEG_DECODER "/dev/video16" +#define V4L2_VO_HDR "VO: [v4l2]" + +int v4l2_fd = -1; +static vo_mpegpes_t *pes; + +/* suboptions */ +static int output = -1; +static char *device = NULL; + +static opt_t subopts[] = { + {"output", OPT_ARG_INT, &output, (opt_test_f)int_non_neg}, + {"device", OPT_ARG_MSTRZ, &device, NULL}, + {NULL} +}; + +static vo_info_t info = +{ + "V4L2 MPEG Video Decoder Output", + "v4l2", + "Benjamin Zores", + "" +}; +LIBVO_EXTERN (v4l2) + +int +v4l2_write (unsigned char *data, int len) +{ + if (v4l2_fd < 0) + return 0; + + return write (v4l2_fd, data, len); +} + +/* video out functions */ + +static int +config (uint32_t width, uint32_t height, + uint32_t d_width, uint32_t d_height, + uint32_t fullscreen, char *title, uint32_t format) +{ + return 0; +} + +static int +preinit (const char *arg) +{ + struct v4l2_output vout; + struct v4l2_ext_controls ctrls; + int err; + + if (subopt_parse (arg, subopts) != 0) + { + mp_msg (MSGT_VO, MSGL_FATAL, + "\n-vo v4l2 command line help:\n" + "Example: mplayer -vo v4l2:device=/dev/video16:output=2\n" + "\nOptions:\n" + " device=/dev/videoX\n" + " Name of the MPEG decoder device file.\n" + " output=<0-...>\n" + " V4L2 id of the TV output.\n" + "\n" ); + return -1; + } + + if (!device) + device = strdup (DEFAULT_MPEG_DECODER); + + v4l2_fd = open (device, O_RDWR); + if (v4l2_fd < 0) + { + free (device); + mp_msg (MSGT_VO, MSGL_FATAL, "%s %s\n", V4L2_VO_HDR, strerror (errno)); + return -1; + } + + /* check for device hardware MPEG decoding capability */ + ctrls.ctrl_class = V4L2_CTRL_CLASS_MPEG; + ctrls.count = 0; + ctrls.controls = NULL; + + if (ioctl (v4l2_fd, VIDIOC_G_EXT_CTRLS, &ctrls) < 0) + { + free (device); + mp_msg (MSGT_OPEN, MSGL_FATAL, "%s %s\n", V4L2_VO_HDR, strerror (errno)); + return -1; + } + + /* list available outputs */ + vout.index = 0; + err = 1; + mp_msg (MSGT_VO, MSGL_INFO, "%s Available video outputs: ", V4L2_VO_HDR); + while (ioctl (v4l2_fd, VIDIOC_ENUMOUTPUT, &vout) >= 0) + { + err = 0; + mp_msg (MSGT_VO, MSGL_INFO, "'#%d, %s' ", vout.index, vout.name); + vout.index++; + } + if (err) + { + mp_msg (MSGT_VO, MSGL_INFO, "none\n"); + free (device); + return -1; + } + else + mp_msg (MSGT_VO, MSGL_INFO, "\n"); + + /* set user specified output */ + if (output != -1) + { + if (ioctl (v4l2_fd, VIDIOC_S_OUTPUT, &output) < 0) + { + mp_msg (MSGT_VO, MSGL_ERR, + "%s can't set output (%s)\n", V4L2_VO_HDR, strerror (errno)); + free (device); + return -1; + } + } + + /* display device name */ + mp_msg (MSGT_VO, MSGL_INFO, "%s using %s\n", V4L2_VO_HDR, device); + free (device); + + /* display current video output */ + if (ioctl (v4l2_fd, VIDIOC_G_OUTPUT, &output) == 0) + { + vout.index = output; + if (ioctl (v4l2_fd, VIDIOC_ENUMOUTPUT, &vout) < 0) + { + mp_msg (MSGT_VO, MSGL_ERR, + "%s can't get output (%s).\n", V4L2_VO_HDR, strerror (errno)); + return -1; + } + else + mp_msg (MSGT_VO, MSGL_INFO, + "%s video output: %s\n", V4L2_VO_HDR, vout.name); + } + else + { + mp_msg (MSGT_VO, MSGL_ERR, + "%s can't get output (%s).\n", V4L2_VO_HDR, strerror (errno)); + return -1; + } + + return 0; +} + +static void +draw_osd (void) +{ + /* do nothing */ +} + +static int +draw_frame (uint8_t * src[]) +{ + pes = (vo_mpegpes_t *) src[0]; + return 0; +} + +static void +flip_page (void) +{ + if (v4l2_fd < 0) + return; + + if (!pes) + return; + + send_mpeg_pes_packet (pes->data, pes->size, pes->id, + pes->timestamp ? pes->timestamp : vo_pts, 2, + v4l2_write); + + /* ensure flip_page() won't be called twice */ + pes = NULL; +} + +static int +draw_slice (uint8_t *image[], int stride[], int w, int h, int x, int y) +{ + return 0; +} + +static void +uninit (void) +{ + if (v4l2_fd < 0) + return; + + /* close device */ + close (v4l2_fd); + v4l2_fd = -1; +} + +static void +check_events (void) +{ + /* do nothing */ +} + +static int +query_format (uint32_t format) +{ + if (format != IMGFMT_MPEGPES) + return 0; + + return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_TIMER; +} + +static int +control (uint32_t request, void *data, ...) +{ + switch (request) + { + case VOCTRL_QUERY_FORMAT: + return query_format (*((uint32_t*) data)); + } + + return VO_NOTIMPL; +} -- cgit v1.2.3