gstv4l2object.c 146 KB
Newer Older
1 2
/* GStreamer
 *
3
 * Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
Edgard Lima's avatar
Edgard Lima committed
4
 *               2006 Edgard Lima <edgard.lima@gmail.com>
5 6
 *
 * gstv4l2object.c: base class for V4L2 elements
7 8 9 10 11 12 13 14 15 16
 *
 * This library is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Library General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version. This library 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 Library General Public License for more details.
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
Tim-Philipp Müller's avatar
Tim-Philipp Müller committed
17
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301,
Rob Clark's avatar
Rob Clark committed
18
 * USA.
19 20 21 22 23 24 25 26 27 28
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
29 30 31
#include <sys/mman.h>
#include <sys/ioctl.h>

32

33 34 35 36
#ifdef HAVE_GUDEV
#include <gudev/gudev.h>
#endif

37
#include "ext/videodev2.h"
38
#include "gstv4l2object.h"
39 40 41
#include "gstv4l2tuner.h"
#include "gstv4l2colorbalance.h"

Rob Clark's avatar
Rob Clark committed
42 43
#include "gst/gst-i18n-plugin.h"

44
#include <gst/video/video.h>
45
#include <gst/allocators/gstdmabuf.h>
46

Rob Clark's avatar
Rob Clark committed
47 48 49
GST_DEBUG_CATEGORY_EXTERN (v4l2_debug);
#define GST_CAT_DEFAULT v4l2_debug

50
#define DEFAULT_PROP_DEVICE_NAME        NULL
51
#define DEFAULT_PROP_DEVICE_FD          -1
52
#define DEFAULT_PROP_FLAGS              0
Rob Clark's avatar
Rob Clark committed
53
#define DEFAULT_PROP_TV_NORM            0
54
#define DEFAULT_PROP_IO_MODE            GST_V4L2_IO_AUTO
55

56
#define ENCODED_BUFFER_SIZE             (2 * 1024 * 1024)
57

58 59 60 61 62 63
enum
{
  PROP_0,
  V4L2_STD_OBJECT_PROPS,
};

64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
/*
 * common format / caps utilities:
 */
typedef enum
{
  GST_V4L2_RAW = 1 << 0,
  GST_V4L2_CODEC = 1 << 1,
  GST_V4L2_TRANSPORT = 1 << 2,
  GST_V4L2_NO_PARSE = 1 << 3,
  GST_V4L2_ALL = 0xffff
} GstV4L2FormatFlags;

typedef struct
{
  guint32 format;
  gboolean dimensions;
  GstV4L2FormatFlags flags;
} GstV4L2FormatDesc;

static const GstV4L2FormatDesc gst_v4l2_formats[] = {
84
  /* RGB formats */
85
  {V4L2_PIX_FMT_RGB332, TRUE, GST_V4L2_RAW},
86 87 88 89
  {V4L2_PIX_FMT_ARGB555, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_XRGB555, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_ARGB555X, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_XRGB555X, TRUE, GST_V4L2_RAW},
90 91
  {V4L2_PIX_FMT_RGB565, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_RGB565X, TRUE, GST_V4L2_RAW},
92
  {V4L2_PIX_FMT_BGR666, TRUE, GST_V4L2_RAW},
93 94
  {V4L2_PIX_FMT_BGR24, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_RGB24, TRUE, GST_V4L2_RAW},
95 96 97 98 99 100 101 102 103
  {V4L2_PIX_FMT_ABGR32, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_XBGR32, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_ARGB32, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_XRGB32, TRUE, GST_V4L2_RAW},

  /* Deprecated Packed RGB Image Formats (alpha ambiguity) */
  {V4L2_PIX_FMT_RGB444, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_RGB555, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_RGB555X, TRUE, GST_V4L2_RAW},
104 105
  {V4L2_PIX_FMT_BGR32, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_RGB32, TRUE, GST_V4L2_RAW},
106 107

  /* Grey formats */
108
  {V4L2_PIX_FMT_GREY, TRUE, GST_V4L2_RAW},
109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
  {V4L2_PIX_FMT_Y4, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y6, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y10, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y12, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y16, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y16_BE, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y10BPACK, TRUE, GST_V4L2_RAW},

  /* Palette formats */
  {V4L2_PIX_FMT_PAL8, TRUE, GST_V4L2_RAW},

  /* Chrominance formats */
  {V4L2_PIX_FMT_UV8, TRUE, GST_V4L2_RAW},

  /* Luminance+Chrominance formats */
124 125
  {V4L2_PIX_FMT_YVU410, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YVU420, TRUE, GST_V4L2_RAW},
126
  {V4L2_PIX_FMT_YVU420M, TRUE, GST_V4L2_RAW},
127
  {V4L2_PIX_FMT_YUYV, TRUE, GST_V4L2_RAW},
128 129
  {V4L2_PIX_FMT_YYUV, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YVYU, TRUE, GST_V4L2_RAW},
130
  {V4L2_PIX_FMT_UYVY, TRUE, GST_V4L2_RAW},
131
  {V4L2_PIX_FMT_VYUY, TRUE, GST_V4L2_RAW},
132 133 134
  {V4L2_PIX_FMT_YUV422P, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV411P, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_Y41P, TRUE, GST_V4L2_RAW},
135 136 137 138 139 140 141 142 143 144
  {V4L2_PIX_FMT_YUV444, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV555, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV565, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV32, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV410, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV420, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_YUV420M, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_HI240, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_HM12, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_M420, TRUE, GST_V4L2_RAW},
145 146 147 148 149

  /* two planes -- one Y, one Cr + Cb interleaved  */
  {V4L2_PIX_FMT_NV12, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV12M, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV12MT, TRUE, GST_V4L2_RAW},
150
  {V4L2_PIX_FMT_NV12MT_16X16, TRUE, GST_V4L2_RAW},
151 152
  {V4L2_PIX_FMT_NV21, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV21M, TRUE, GST_V4L2_RAW},
153 154 155 156 157
  {V4L2_PIX_FMT_NV16, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV16M, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV61, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV61M, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_NV24, TRUE, GST_V4L2_RAW},
158
  {V4L2_PIX_FMT_NV42, TRUE, GST_V4L2_RAW},
159

160
  /* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
161 162 163 164
  {V4L2_PIX_FMT_SBGGR8, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_SGBRG8, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_SGRBG8, TRUE, GST_V4L2_RAW},
  {V4L2_PIX_FMT_SRGGB8, TRUE, GST_V4L2_RAW},
165 166 167 168 169 170 171

  /* compressed formats */
  {V4L2_PIX_FMT_MJPEG, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_JPEG, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_PJPG, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_DV, FALSE, GST_V4L2_TRANSPORT},
  {V4L2_PIX_FMT_MPEG, FALSE, GST_V4L2_TRANSPORT},
172
  {V4L2_PIX_FMT_FWHT, FALSE, GST_V4L2_CODEC},
173 174 175
  {V4L2_PIX_FMT_H264, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_H264_NO_SC, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_H264_MVC, FALSE, GST_V4L2_CODEC},
176
  {V4L2_PIX_FMT_HEVC, FALSE, GST_V4L2_CODEC},
177
  {V4L2_PIX_FMT_H263, FALSE, GST_V4L2_CODEC},
178 179 180
  {V4L2_PIX_FMT_MPEG1, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_MPEG2, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_MPEG4, FALSE, GST_V4L2_CODEC},
181 182 183
  {V4L2_PIX_FMT_XVID, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_VC1_ANNEX_G, FALSE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_VC1_ANNEX_L, FALSE, GST_V4L2_CODEC},
184
  {V4L2_PIX_FMT_VP8, FALSE, GST_V4L2_CODEC | GST_V4L2_NO_PARSE},
185
  {V4L2_PIX_FMT_VP9, FALSE, GST_V4L2_CODEC | GST_V4L2_NO_PARSE},
186 187 188 189 190 191 192 193 194 195

  /*  Vendor-specific formats   */
  {V4L2_PIX_FMT_WNVA, TRUE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_SN9C10X, TRUE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_PWC1, TRUE, GST_V4L2_CODEC},
  {V4L2_PIX_FMT_PWC2, TRUE, GST_V4L2_CODEC},
};

#define GST_V4L2_FORMAT_COUNT (G_N_ELEMENTS (gst_v4l2_formats))

196 197
static GSList *gst_v4l2_object_get_format_list (GstV4l2Object * v4l2object);

198 199

#define GST_TYPE_V4L2_DEVICE_FLAGS (gst_v4l2_device_get_type ())
200
static GType
201 202 203 204 205 206
gst_v4l2_device_get_type (void)
{
  static GType v4l2_device_type = 0;

  if (v4l2_device_type == 0) {
    static const GFlagsValue values[] = {
207 208 209 210 211 212 213 214 215
      {V4L2_CAP_VIDEO_CAPTURE, "Device supports video capture", "capture"},
      {V4L2_CAP_VIDEO_OUTPUT, "Device supports video playback", "output"},
      {V4L2_CAP_VIDEO_OVERLAY, "Device supports video overlay", "overlay"},

      {V4L2_CAP_VBI_CAPTURE, "Device supports the VBI capture", "vbi-capture"},
      {V4L2_CAP_VBI_OUTPUT, "Device supports the VBI output", "vbi-output"},

      {V4L2_CAP_TUNER, "Device has a tuner or modulator", "tuner"},
      {V4L2_CAP_AUDIO, "Device has audio inputs or outputs", "audio"},
216 217 218 219 220 221 222 223 224 225 226

      {0, NULL, NULL}
    };

    v4l2_device_type =
        g_flags_register_static ("GstV4l2DeviceTypeFlags", values);
  }

  return v4l2_device_type;
}

Rob Clark's avatar
Rob Clark committed
227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278
#define GST_TYPE_V4L2_TV_NORM (gst_v4l2_tv_norm_get_type ())
static GType
gst_v4l2_tv_norm_get_type (void)
{
  static GType v4l2_tv_norm = 0;

  if (!v4l2_tv_norm) {
    static const GEnumValue tv_norms[] = {
      {0, "none", "none"},

      {V4L2_STD_NTSC, "NTSC", "NTSC"},
      {V4L2_STD_NTSC_M, "NTSC-M", "NTSC-M"},
      {V4L2_STD_NTSC_M_JP, "NTSC-M-JP", "NTSC-M-JP"},
      {V4L2_STD_NTSC_M_KR, "NTSC-M-KR", "NTSC-M-KR"},
      {V4L2_STD_NTSC_443, "NTSC-443", "NTSC-443"},

      {V4L2_STD_PAL, "PAL", "PAL"},
      {V4L2_STD_PAL_BG, "PAL-BG", "PAL-BG"},
      {V4L2_STD_PAL_B, "PAL-B", "PAL-B"},
      {V4L2_STD_PAL_B1, "PAL-B1", "PAL-B1"},
      {V4L2_STD_PAL_G, "PAL-G", "PAL-G"},
      {V4L2_STD_PAL_H, "PAL-H", "PAL-H"},
      {V4L2_STD_PAL_I, "PAL-I", "PAL-I"},
      {V4L2_STD_PAL_DK, "PAL-DK", "PAL-DK"},
      {V4L2_STD_PAL_D, "PAL-D", "PAL-D"},
      {V4L2_STD_PAL_D1, "PAL-D1", "PAL-D1"},
      {V4L2_STD_PAL_K, "PAL-K", "PAL-K"},
      {V4L2_STD_PAL_M, "PAL-M", "PAL-M"},
      {V4L2_STD_PAL_N, "PAL-N", "PAL-N"},
      {V4L2_STD_PAL_Nc, "PAL-Nc", "PAL-Nc"},
      {V4L2_STD_PAL_60, "PAL-60", "PAL-60"},

      {V4L2_STD_SECAM, "SECAM", "SECAM"},
      {V4L2_STD_SECAM_B, "SECAM-B", "SECAM-B"},
      {V4L2_STD_SECAM_G, "SECAM-G", "SECAM-G"},
      {V4L2_STD_SECAM_H, "SECAM-H", "SECAM-H"},
      {V4L2_STD_SECAM_DK, "SECAM-DK", "SECAM-DK"},
      {V4L2_STD_SECAM_D, "SECAM-D", "SECAM-D"},
      {V4L2_STD_SECAM_K, "SECAM-K", "SECAM-K"},
      {V4L2_STD_SECAM_K1, "SECAM-K1", "SECAM-K1"},
      {V4L2_STD_SECAM_L, "SECAM-L", "SECAM-L"},
      {V4L2_STD_SECAM_LC, "SECAM-Lc", "SECAM-Lc"},

      {0, NULL, NULL}
    };

    v4l2_tv_norm = g_enum_register_static ("V4L2_TV_norms", tv_norms);
  }

  return v4l2_tv_norm;
}

279
GType
280 281 282 283 284 285 286 287 288 289
gst_v4l2_io_mode_get_type (void)
{
  static GType v4l2_io_mode = 0;

  if (!v4l2_io_mode) {
    static const GEnumValue io_modes[] = {
      {GST_V4L2_IO_AUTO, "GST_V4L2_IO_AUTO", "auto"},
      {GST_V4L2_IO_RW, "GST_V4L2_IO_RW", "rw"},
      {GST_V4L2_IO_MMAP, "GST_V4L2_IO_MMAP", "mmap"},
      {GST_V4L2_IO_USERPTR, "GST_V4L2_IO_USERPTR", "userptr"},
290
      {GST_V4L2_IO_DMABUF, "GST_V4L2_IO_DMABUF", "dmabuf"},
291 292
      {GST_V4L2_IO_DMABUF_IMPORT, "GST_V4L2_IO_DMABUF_IMPORT",
          "dmabuf-import"},
293 294 295 296 297 298 299 300

      {0, NULL, NULL}
    };
    v4l2_io_mode = g_enum_register_static ("GstV4l2IOMode", io_modes);
  }
  return v4l2_io_mode;
}

301
void
Rob Clark's avatar
Rob Clark committed
302 303
gst_v4l2_object_install_properties_helper (GObjectClass * gobject_class,
    const char *default_device)
304
{
305 306
  g_object_class_install_property (gobject_class, PROP_DEVICE,
      g_param_spec_string ("device", "Device", "Device location",
307
          default_device, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
308 309
  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
      g_param_spec_string ("device-name", "Device name",
310 311
          "Name of the device", DEFAULT_PROP_DEVICE_NAME,
          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
312 313 314
  g_object_class_install_property (gobject_class, PROP_DEVICE_FD,
      g_param_spec_int ("device-fd", "File descriptor",
          "File descriptor of the device", -1, G_MAXINT, DEFAULT_PROP_DEVICE_FD,
315
          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
316 317
  g_object_class_install_property (gobject_class, PROP_FLAGS,
      g_param_spec_flags ("flags", "Flags", "Device type flags",
318 319
          GST_TYPE_V4L2_DEVICE_FLAGS, DEFAULT_PROP_FLAGS,
          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
320

321
  /**
322
   * GstV4l2Src:brightness:
323 324 325
   *
   * Picture brightness, or more precisely, the black level
   */
326 327 328 329 330
  g_object_class_install_property (gobject_class, PROP_BRIGHTNESS,
      g_param_spec_int ("brightness", "Brightness",
          "Picture brightness, or more precisely, the black level", G_MININT,
          G_MAXINT, 0,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
331
  /**
332
   * GstV4l2Src:contrast:
333 334 335
   *
   * Picture contrast or luma gain
   */
336 337 338 339 340
  g_object_class_install_property (gobject_class, PROP_CONTRAST,
      g_param_spec_int ("contrast", "Contrast",
          "Picture contrast or luma gain", G_MININT,
          G_MAXINT, 0,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
341
  /**
342
   * GstV4l2Src:saturation:
343 344 345
   *
   * Picture color saturation or chroma gain
   */
346 347 348 349 350
  g_object_class_install_property (gobject_class, PROP_SATURATION,
      g_param_spec_int ("saturation", "Saturation",
          "Picture color saturation or chroma gain", G_MININT,
          G_MAXINT, 0,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
351
  /**
352
   * GstV4l2Src:hue:
353 354 355
   *
   * Hue or color balance
   */
356 357 358 359 360
  g_object_class_install_property (gobject_class, PROP_HUE,
      g_param_spec_int ("hue", "Hue",
          "Hue or color balance", G_MININT,
          G_MAXINT, 0,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_CONTROLLABLE));
Rob Clark's avatar
Rob Clark committed
361 362

  /**
363
   * GstV4l2Src:norm:
Rob Clark's avatar
Rob Clark committed
364 365 366 367 368 369 370 371
   *
   * TV norm
   */
  g_object_class_install_property (gobject_class, PROP_TV_NORM,
      g_param_spec_enum ("norm", "TV norm",
          "video standard",
          GST_TYPE_V4L2_TV_NORM, DEFAULT_PROP_TV_NORM,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
372 373

  /**
374
   * GstV4l2Src:io-mode:
375 376 377 378 379 380 381 382
   *
   * IO Mode
   */
  g_object_class_install_property (gobject_class, PROP_IO_MODE,
      g_param_spec_enum ("io-mode", "IO mode",
          "I/O mode",
          GST_TYPE_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
383 384

  /**
385
   * GstV4l2Src:extra-controls:
386 387 388 389 390 391 392 393 394 395 396
   *
   * Additional v4l2 controls for the device. The controls are identified
   * by the control name (lowercase with '_' for any non-alphanumeric
   * characters).
   *
   * Since: 1.2
   */
  g_object_class_install_property (gobject_class, PROP_EXTRA_CONTROLS,
      g_param_spec_boxed ("extra-controls", "Extra Controls",
          "Extra v4l2 controls (CIDs) for the device",
          GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
397 398

  /**
399
   * GstV4l2Src:pixel-aspect-ratio:
400 401 402 403 404 405 406 407 408 409 410 411
   *
   * The pixel aspect ratio of the device. This overwrites the pixel aspect
   * ratio queried from the device.
   *
   * Since: 1.2
   */
  g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
      g_param_spec_string ("pixel-aspect-ratio", "Pixel Aspect Ratio",
          "Overwrite the pixel aspect ratio of the device", "1/1",
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

  /**
412
   * GstV4l2Src:force-aspect-ratio:
413 414 415 416 417 418 419 420 421 422 423
   *
   * When enabled, the pixel aspect ratio queried from the device or set
   * with the pixel-aspect-ratio property will be enforced.
   *
   * Since: 1.2
   */
  g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
      g_param_spec_boolean ("force-aspect-ratio", "Force aspect ratio",
          "When enabled, the pixel aspect ratio will be enforced", TRUE,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

424 425
}

426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460
void
gst_v4l2_object_install_m2m_properties_helper (GObjectClass * gobject_class)
{
  g_object_class_install_property (gobject_class, PROP_DEVICE,
      g_param_spec_string ("device", "Device", "Device location",
          NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (gobject_class, PROP_DEVICE_NAME,
      g_param_spec_string ("device-name", "Device name",
          "Name of the device", DEFAULT_PROP_DEVICE_NAME,
          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (gobject_class, PROP_DEVICE_FD,
      g_param_spec_int ("device-fd", "File descriptor",
          "File descriptor of the device", -1, G_MAXINT, DEFAULT_PROP_DEVICE_FD,
          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (gobject_class, PROP_OUTPUT_IO_MODE,
      g_param_spec_enum ("output-io-mode", "Output IO mode",
          "Output side I/O mode (matches sink pad)",
          GST_TYPE_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (gobject_class, PROP_CAPTURE_IO_MODE,
      g_param_spec_enum ("capture-io-mode", "Capture IO mode",
          "Capture I/O mode (matches src pad)",
          GST_TYPE_V4L2_IO_MODE, DEFAULT_PROP_IO_MODE,
          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));

  g_object_class_install_property (gobject_class, PROP_EXTRA_CONTROLS,
      g_param_spec_boxed ("extra-controls", "Extra Controls",
          "Extra v4l2 controls (CIDs) for the device",
          GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}

461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
/* Support for 32bit off_t, this wrapper is casting off_t to gint64 */
#ifdef HAVE_LIBV4L2
#if SIZEOF_OFF_T < 8

static gpointer
v4l2_mmap_wrapper (gpointer start, gsize length, gint prot, gint flags, gint fd,
    off_t offset)
{
  return v4l2_mmap (start, length, prot, flags, fd, (gint64) offset);
}

#define v4l2_mmap v4l2_mmap_wrapper

#endif /* SIZEOF_OFF_T < 8 */
#endif /* HAVE_LIBV4L2 */

477
GstV4l2Object *
478
gst_v4l2_object_new (GstElement * element,
479
    GstObject * debug_object,
Rob Clark's avatar
Rob Clark committed
480
    enum v4l2_buf_type type,
481
    const char *default_device,
482
    GstV4l2GetInOutFunction get_in_out_func,
483 484
    GstV4l2SetInOutFunction set_in_out_func,
    GstV4l2UpdateFpsFunction update_fps_func)
485 486 487 488
{
  GstV4l2Object *v4l2object;

  /*
Rob Clark's avatar
Rob Clark committed
489
   * some default values
490 491 492
   */
  v4l2object = g_new0 (GstV4l2Object, 1);

Rob Clark's avatar
Rob Clark committed
493 494 495
  v4l2object->type = type;
  v4l2object->formats = NULL;

496
  v4l2object->element = element;
497
  v4l2object->dbg_obj = debug_object;
498 499
  v4l2object->get_in_out_func = get_in_out_func;
  v4l2object->set_in_out_func = set_in_out_func;
500
  v4l2object->update_fps_func = update_fps_func;
501 502

  v4l2object->video_fd = -1;
503
  v4l2object->active = FALSE;
Rob Clark's avatar
Rob Clark committed
504
  v4l2object->videodev = g_strdup (default_device);
505

506 507
  v4l2object->norms = NULL;
  v4l2object->channels = NULL;
508 509
  v4l2object->colors = NULL;

510 511
  v4l2object->keep_aspect = TRUE;

512 513
  v4l2object->n_v4l2_planes = 0;

514 515
  v4l2object->no_initial_format = FALSE;

516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533
  /* We now disable libv4l2 by default, but have an env to enable it. */
#ifdef HAVE_LIBV4L2
  if (g_getenv ("GST_V4L2_USE_LIBV4L2")) {
    v4l2object->fd_open = v4l2_fd_open;
    v4l2object->close = v4l2_close;
    v4l2object->dup = v4l2_dup;
    v4l2object->ioctl = v4l2_ioctl;
    v4l2object->read = v4l2_read;
    v4l2object->mmap = v4l2_mmap;
    v4l2object->munmap = v4l2_munmap;
  } else
#endif
  {
    v4l2object->fd_open = NULL;
    v4l2object->close = close;
    v4l2object->dup = dup;
    v4l2object->ioctl = ioctl;
    v4l2object->read = read;
534
    v4l2object->mmap = mmap;
535 536 537
    v4l2object->munmap = munmap;
  }

538 539 540
  return v4l2object;
}

Rob Clark's avatar
Rob Clark committed
541 542 543
static gboolean gst_v4l2_object_clear_format_list (GstV4l2Object * v4l2object);


544
void
545
gst_v4l2_object_destroy (GstV4l2Object * v4l2object)
546
{
547
  g_return_if_fail (v4l2object != NULL);
548

549
  g_free (v4l2object->videodev);
550

551
  g_free (v4l2object->channel);
552

Rob Clark's avatar
Rob Clark committed
553 554 555 556
  if (v4l2object->formats) {
    gst_v4l2_object_clear_format_list (v4l2object);
  }

557 558 559 560
  if (v4l2object->probed_caps) {
    gst_caps_unref (v4l2object->probed_caps);
  }

561 562 563 564
  if (v4l2object->extra_controls) {
    gst_structure_free (v4l2object->extra_controls);
  }

565
  g_free (v4l2object);
566 567
}

Rob Clark's avatar
Rob Clark committed
568 569 570 571 572 573 574 575 576 577 578

static gboolean
gst_v4l2_object_clear_format_list (GstV4l2Object * v4l2object)
{
  g_slist_foreach (v4l2object->formats, (GFunc) g_free, NULL);
  g_slist_free (v4l2object->formats);
  v4l2object->formats = NULL;

  return TRUE;
}

579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602
static gint
gst_v4l2_object_prop_to_cid (guint prop_id)
{
  gint cid = -1;

  switch (prop_id) {
    case PROP_BRIGHTNESS:
      cid = V4L2_CID_BRIGHTNESS;
      break;
    case PROP_CONTRAST:
      cid = V4L2_CID_CONTRAST;
      break;
    case PROP_SATURATION:
      cid = V4L2_CID_SATURATION;
      break;
    case PROP_HUE:
      cid = V4L2_CID_HUE;
      break;
    default:
      GST_WARNING ("unmapped property id: %d", prop_id);
  }
  return cid;
}

Rob Clark's avatar
Rob Clark committed
603

604
gboolean
605
gst_v4l2_object_set_property_helper (GstV4l2Object * v4l2object,
606 607 608 609
    guint prop_id, const GValue * value, GParamSpec * pspec)
{
  switch (prop_id) {
    case PROP_DEVICE:
Wim Taymans's avatar
Wim Taymans committed
610
      g_free (v4l2object->videodev);
611
      v4l2object->videodev = g_value_dup_string (value);
612
      break;
613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
    case PROP_BRIGHTNESS:
    case PROP_CONTRAST:
    case PROP_SATURATION:
    case PROP_HUE:
    {
      gint cid = gst_v4l2_object_prop_to_cid (prop_id);

      if (cid != -1) {
        if (GST_V4L2_IS_OPEN (v4l2object)) {
          gst_v4l2_set_attribute (v4l2object, cid, g_value_get_int (value));
        }
      }
      return TRUE;
    }
      break;
Rob Clark's avatar
Rob Clark committed
628 629
    case PROP_TV_NORM:
      v4l2object->tv_norm = g_value_get_enum (value);
630
      break;
Rob Clark's avatar
Rob Clark committed
631
#if 0
632
    case PROP_CHANNEL:
633 634 635
      if (GST_V4L2_IS_OPEN (v4l2object)) {
        GstTuner *tuner = GST_TUNER (v4l2object->element);
        GstTunerChannel *channel = gst_tuner_find_channel_by_name (tuner,
636
            (gchar *) g_value_get_string (value));
637 638 639 640 641 642 643

        if (channel) {
          /* like gst_tuner_set_channel (tuner, channel)
             without g_object_notify */
          gst_v4l2_tuner_set_channel (v4l2object, channel);
        }
      } else {
644 645
        g_free (v4l2object->channel);
        v4l2object->channel = g_value_dup_string (value);
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664
      }
      break;
    case PROP_FREQUENCY:
      if (GST_V4L2_IS_OPEN (v4l2object)) {
        GstTuner *tuner = GST_TUNER (v4l2object->element);
        GstTunerChannel *channel = gst_tuner_get_channel (tuner);

        if (channel &&
            GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
          /* like
             gst_tuner_set_frequency (tuner, channel, g_value_get_ulong (value))
             without g_object_notify */
          gst_v4l2_tuner_set_frequency (v4l2object, channel,
              g_value_get_ulong (value));
        }
      } else {
        v4l2object->frequency = g_value_get_ulong (value);
      }
      break;
665
#endif
666

667 668 669
    case PROP_IO_MODE:
      v4l2object->req_mode = g_value_get_enum (value);
      break;
670 671 672 673 674 675 676 677
    case PROP_CAPTURE_IO_MODE:
      g_return_val_if_fail (!V4L2_TYPE_IS_OUTPUT (v4l2object->type), FALSE);
      v4l2object->req_mode = g_value_get_enum (value);
      break;
    case PROP_OUTPUT_IO_MODE:
      g_return_val_if_fail (V4L2_TYPE_IS_OUTPUT (v4l2object->type), FALSE);
      v4l2object->req_mode = g_value_get_enum (value);
      break;
678 679 680 681 682 683 684 685 686 687 688
    case PROP_EXTRA_CONTROLS:{
      const GstStructure *s = gst_value_get_structure (value);

      if (v4l2object->extra_controls)
        gst_structure_free (v4l2object->extra_controls);

      v4l2object->extra_controls = s ? gst_structure_copy (s) : NULL;
      if (GST_V4L2_IS_OPEN (v4l2object))
        gst_v4l2_set_controls (v4l2object, v4l2object->extra_controls);
      break;
    }
689
    case PROP_PIXEL_ASPECT_RATIO:
690 691 692 693
      if (v4l2object->par) {
        g_value_unset (v4l2object->par);
        g_free (v4l2object->par);
      }
694 695 696 697 698 699
      v4l2object->par = g_new0 (GValue, 1);
      g_value_init (v4l2object->par, GST_TYPE_FRACTION);
      if (!g_value_transform (value, v4l2object->par)) {
        g_warning ("Could not transform string to aspect ratio");
        gst_value_set_fraction (v4l2object->par, 1, 1);
      }
700

701
      GST_DEBUG_OBJECT (v4l2object->dbg_obj, "set PAR to %d/%d",
702 703 704 705 706 707
          gst_value_get_fraction_numerator (v4l2object->par),
          gst_value_get_fraction_denominator (v4l2object->par));
      break;
    case PROP_FORCE_ASPECT_RATIO:
      v4l2object->keep_aspect = g_value_get_boolean (value);
      break;
708 709 710 711 712 713 714 715 716
    default:
      return FALSE;
      break;
  }
  return TRUE;
}


gboolean
717
gst_v4l2_object_get_property_helper (GstV4l2Object * v4l2object,
718 719 720 721 722 723 724 725
    guint prop_id, GValue * value, GParamSpec * pspec)
{
  switch (prop_id) {
    case PROP_DEVICE:
      g_value_set_string (value, v4l2object->videodev);
      break;
    case PROP_DEVICE_NAME:
    {
726
      const guchar *name = NULL;
727

728 729 730 731
      if (GST_V4L2_IS_OPEN (v4l2object))
        name = v4l2object->vcap.card;

      g_value_set_string (value, (gchar *) name);
732 733
      break;
    }
734 735 736 737 738 739 740 741
    case PROP_DEVICE_FD:
    {
      if (GST_V4L2_IS_OPEN (v4l2object))
        g_value_set_int (value, v4l2object->video_fd);
      else
        g_value_set_int (value, DEFAULT_PROP_DEVICE_FD);
      break;
    }
742 743 744 745 746
    case PROP_FLAGS:
    {
      guint flags = 0;

      if (GST_V4L2_IS_OPEN (v4l2object)) {
747
        flags |= v4l2object->device_caps &
748 749
            (V4L2_CAP_VIDEO_CAPTURE |
            V4L2_CAP_VIDEO_OUTPUT |
750 751 752
            V4L2_CAP_VIDEO_OVERLAY |
            V4L2_CAP_VBI_CAPTURE |
            V4L2_CAP_VBI_OUTPUT | V4L2_CAP_TUNER | V4L2_CAP_AUDIO);
753

754
        if (v4l2object->device_caps & V4L2_CAP_VIDEO_CAPTURE_MPLANE)
755 756
          flags |= V4L2_CAP_VIDEO_CAPTURE;

757
        if (v4l2object->device_caps & V4L2_CAP_VIDEO_OUTPUT_MPLANE)
758
          flags |= V4L2_CAP_VIDEO_OUTPUT;
759 760 761 762
      }
      g_value_set_flags (value, flags);
      break;
    }
763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
    case PROP_BRIGHTNESS:
    case PROP_CONTRAST:
    case PROP_SATURATION:
    case PROP_HUE:
    {
      gint cid = gst_v4l2_object_prop_to_cid (prop_id);

      if (cid != -1) {
        if (GST_V4L2_IS_OPEN (v4l2object)) {
          gint v;
          if (gst_v4l2_get_attribute (v4l2object, cid, &v)) {
            g_value_set_int (value, v);
          }
        }
      }
      return TRUE;
    }
      break;
Rob Clark's avatar
Rob Clark committed
781 782 783
    case PROP_TV_NORM:
      g_value_set_enum (value, v4l2object->tv_norm);
      break;
784 785 786
    case PROP_IO_MODE:
      g_value_set_enum (value, v4l2object->req_mode);
      break;
787 788 789 790 791 792 793 794
    case PROP_CAPTURE_IO_MODE:
      g_return_val_if_fail (!V4L2_TYPE_IS_OUTPUT (v4l2object->type), FALSE);
      g_value_set_enum (value, v4l2object->req_mode);
      break;
    case PROP_OUTPUT_IO_MODE:
      g_return_val_if_fail (V4L2_TYPE_IS_OUTPUT (v4l2object->type), FALSE);
      g_value_set_enum (value, v4l2object->req_mode);
      break;
795 796 797
    case PROP_EXTRA_CONTROLS:
      gst_value_set_structure (value, v4l2object->extra_controls);
      break;
798 799 800 801 802 803 804
    case PROP_PIXEL_ASPECT_RATIO:
      if (v4l2object->par)
        g_value_transform (v4l2object->par, value);
      break;
    case PROP_FORCE_ASPECT_RATIO:
      g_value_set_boolean (value, v4l2object->keep_aspect);
      break;
805 806 807 808 809 810 811
    default:
      return FALSE;
      break;
  }
  return TRUE;
}

812 813 814
static void
gst_v4l2_get_driver_min_buffers (GstV4l2Object * v4l2object)
{
815
  struct v4l2_control control = { 0, };
816

817
  g_return_if_fail (GST_V4L2_IS_OPEN (v4l2object));
818

819 820 821 822 823
  if (V4L2_TYPE_IS_OUTPUT (v4l2object->type))
    control.id = V4L2_CID_MIN_BUFFERS_FOR_OUTPUT;
  else
    control.id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE;

824
  if (v4l2object->ioctl (v4l2object->video_fd, VIDIOC_G_CTRL, &control) == 0) {
825
    GST_DEBUG_OBJECT (v4l2object->dbg_obj,
826 827
        "driver requires a minimum of %d buffers", control.value);
    v4l2object->min_buffers = control.value;
828 829 830 831 832
  } else {
    v4l2object->min_buffers = 0;
  }
}

833 834 835 836 837
static void
gst_v4l2_set_defaults (GstV4l2Object * v4l2object)
{
  GstTunerNorm *norm = NULL;
  GstTunerChannel *channel = NULL;
Rob Clark's avatar
Rob Clark committed
838 839 840 841 842 843
  GstTuner *tuner;

  if (!GST_IS_TUNER (v4l2object->element))
    return;

  tuner = GST_TUNER (v4l2object->element);
844

Rob Clark's avatar
Rob Clark committed
845 846
  if (v4l2object->tv_norm)
    norm = gst_v4l2_tuner_get_norm_by_std_id (v4l2object, v4l2object->tv_norm);
847
  GST_DEBUG_OBJECT (v4l2object->dbg_obj, "tv_norm=0x%" G_GINT64_MODIFIER "x, "
848
      "norm=%p", (guint64) v4l2object->tv_norm, norm);
849 850 851 852 853 854
  if (norm) {
    gst_tuner_set_norm (tuner, norm);
  } else {
    norm =
        GST_TUNER_NORM (gst_tuner_get_norm (GST_TUNER (v4l2object->element)));
    if (norm) {
Rob Clark's avatar
Rob Clark committed
855 856
      v4l2object->tv_norm =
          gst_v4l2_tuner_get_std_id_by_norm (v4l2object, norm);
857 858 859 860
      gst_tuner_norm_changed (tuner, norm);
    }
  }

861 862
  if (v4l2object->channel)
    channel = gst_tuner_find_channel_by_name (tuner, v4l2object->channel);
863 864 865 866
  if (channel) {
    gst_tuner_set_channel (tuner, channel);
  } else {
    channel =
867 868
        GST_TUNER_CHANNEL (gst_tuner_get_channel (GST_TUNER
            (v4l2object->element)));
869 870 871 872 873
    if (channel) {
      g_free (v4l2object->channel);
      v4l2object->channel = g_strdup (channel->label);
      gst_tuner_channel_changed (tuner, channel);
    }
874 875
  }

876 877
  if (channel
      && GST_TUNER_CHANNEL_HAS_FLAG (channel, GST_TUNER_CHANNEL_FREQUENCY)) {
878 879 880 881 882 883 884 885 886 887 888 889 890 891
    if (v4l2object->frequency != 0) {
      gst_tuner_set_frequency (tuner, channel, v4l2object->frequency);
    } else {
      v4l2object->frequency = gst_tuner_get_frequency (tuner, channel);
      if (v4l2object->frequency == 0) {
        /* guess */
        gst_tuner_set_frequency (tuner, channel, 1000);
      } else {
      }
    }
  }
}

gboolean
892
gst_v4l2_object_open (GstV4l2Object * v4l2object)
893 894 895 896 897 898 899 900 901
{
  if (gst_v4l2_open (v4l2object))
    gst_v4l2_set_defaults (v4l2object);
  else
    return FALSE;

  return TRUE;
}

902 903 904 905 906 907 908 909 910 911
gboolean
gst_v4l2_object_open_shared (GstV4l2Object * v4l2object, GstV4l2Object * other)
{
  gboolean ret;

  ret = gst_v4l2_dup (v4l2object, other);

  return ret;
}

912
gboolean
913
gst_v4l2_object_close (GstV4l2Object * v4l2object)
914 915 916 917
{
  if (!gst_v4l2_close (v4l2object))
    return FALSE;

918 919
  gst_caps_replace (&v4l2object->probed_caps, NULL);

920 921 922
  /* reset our copy of the device caps */
  v4l2object->device_caps = 0;

923 924 925 926
  if (v4l2object->formats) {
    gst_v4l2_object_clear_format_list (v4l2object);
  }

927 928 929 930 931
  if (v4l2object->par) {
    g_value_unset (v4l2object->par);
    g_free (v4l2object->par);
    v4l2object->par = NULL;
  }
932

933 934 935 936
  if (v4l2object->channel) {
    g_free (v4l2object->channel);
    v4l2object->channel = NULL;
  }
937

938 939
  return TRUE;
}
Rob Clark's avatar
Rob Clark committed
940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956

static struct v4l2_fmtdesc *
gst_v4l2_object_get_format_from_fourcc (GstV4l2Object * v4l2object,
    guint32 fourcc)
{
  struct v4l2_fmtdesc *fmt;
  GSList *walk;

  if (fourcc == 0)
    return NULL;

  walk = gst_v4l2_object_get_format_list (v4l2object);
  while (walk) {
    fmt = (struct v4l2_fmtdesc *) walk->data;
    if (fmt->pixelformat == fourcc)
      return fmt;
    /* special case for jpeg */
Thiago Santos's avatar
Thiago Santos committed
957
    if (fmt->pixelformat == V4L2_PIX_FMT_MJPEG ||
958 959 960 961
        fmt->pixelformat == V4L2_PIX_FMT_JPEG ||
        fmt->pixelformat == V4L2_PIX_FMT_PJPG) {
      if (fourcc == V4L2_PIX_FMT_JPEG || fourcc == V4L2_PIX_FMT_MJPEG ||
          fourcc == V4L2_PIX_FMT_PJPG) {
Thiago Santos's avatar
Thiago Santos committed
962 963
        return fmt;
      }
Rob Clark's avatar
Rob Clark committed
964 965 966 967 968 969 970 971 972 973
    }
    walk = g_slist_next (walk);
  }

  return NULL;
}



/* complete made up ranking, the values themselves are meaningless */
974 975
/* These ranks MUST be X such that X<<15 fits on a signed int - see
   the comment at the end of gst_v4l2_object_format_get_rank. */
Rob Clark's avatar
Rob Clark committed
976 977 978 979 980 981 982 983 984 985 986 987
#define YUV_BASE_RANK     1000
#define JPEG_BASE_RANK     500
#define DV_BASE_RANK       200
#define RGB_BASE_RANK      100
#define YUV_ODD_BASE_RANK   50
#define RGB_ODD_BASE_RANK   25
#define BAYER_BASE_RANK     15
#define S910_BASE_RANK      10
#define GREY_BASE_RANK       5
#define PWC_BASE_RANK        1

static gint
988
gst_v4l2_object_format_get_rank (const struct v4l2_fmtdesc *fmt)
Rob Clark's avatar
Rob Clark committed
989
{
990
  guint32 fourcc = fmt->pixelformat;
991
  gboolean emulated = ((fmt->flags & V4L2_FMT_FLAG_EMULATED) != 0);
992 993
  gint rank = 0;

Rob Clark's avatar
Rob Clark committed
994 995
  switch (fourcc) {
    case V4L2_PIX_FMT_MJPEG:
Thiago Santos's avatar
Thiago Santos committed
996
    case V4L2_PIX_FMT_PJPG:
997 998
      rank = JPEG_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
999
    case V4L2_PIX_FMT_JPEG:
1000 1001
      rank = JPEG_BASE_RANK + 1;
      break;
1002 1003 1004
    case V4L2_PIX_FMT_MPEG:    /* MPEG          */
      rank = JPEG_BASE_RANK + 2;
      break;
Rob Clark's avatar
Rob Clark committed
1005 1006

    case V4L2_PIX_FMT_RGB332:
1007 1008
    case V4L2_PIX_FMT_ARGB555:
    case V4L2_PIX_FMT_XRGB555:
Rob Clark's avatar
Rob Clark committed
1009
    case V4L2_PIX_FMT_RGB555:
1010 1011
    case V4L2_PIX_FMT_ARGB555X:
    case V4L2_PIX_FMT_XRGB555X:
Rob Clark's avatar
Rob Clark committed
1012
    case V4L2_PIX_FMT_RGB555X:
1013
    case V4L2_PIX_FMT_BGR666:
Rob Clark's avatar
Rob Clark committed
1014 1015
    case V4L2_PIX_FMT_RGB565:
    case V4L2_PIX_FMT_RGB565X:
1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027
    case V4L2_PIX_FMT_RGB444:
    case V4L2_PIX_FMT_Y4:
    case V4L2_PIX_FMT_Y6:
    case V4L2_PIX_FMT_Y10:
    case V4L2_PIX_FMT_Y12:
    case V4L2_PIX_FMT_Y10BPACK:
    case V4L2_PIX_FMT_YUV555:
    case V4L2_PIX_FMT_YUV565:
    case V4L2_PIX_FMT_YUV32:
    case V4L2_PIX_FMT_NV12MT_16X16:
    case V4L2_PIX_FMT_NV42:
    case V4L2_PIX_FMT_H264_MVC:
1028 1029
      rank = RGB_ODD_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1030 1031 1032

    case V4L2_PIX_FMT_RGB24:
    case V4L2_PIX_FMT_BGR24:
1033 1034
      rank = RGB_BASE_RANK - 1;
      break;
Rob Clark's avatar
Rob Clark committed
1035 1036 1037

    case V4L2_PIX_FMT_RGB32:
    case V4L2_PIX_FMT_BGR32:
1038 1039 1040 1041
    case V4L2_PIX_FMT_ABGR32:
    case V4L2_PIX_FMT_XBGR32:
    case V4L2_PIX_FMT_ARGB32:
    case V4L2_PIX_FMT_XRGB32:
1042 1043
      rank = RGB_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1044 1045

    case V4L2_PIX_FMT_GREY:    /*  8  Greyscale     */
1046 1047
      rank = GREY_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1048 1049

    case V4L2_PIX_FMT_NV12:    /* 12  Y/CbCr 4:2:0  */
1050
    case V4L2_PIX_FMT_NV12M:   /* Same as NV12      */
1051
    case V4L2_PIX_FMT_NV12MT:  /* NV12 64x32 tile   */
Rob Clark's avatar
Rob Clark committed
1052
    case V4L2_PIX_FMT_NV21:    /* 12  Y/CrCb 4:2:0  */
1053
    case V4L2_PIX_FMT_NV21M:   /* Same as NV21      */
Rob Clark's avatar
Rob Clark committed
1054 1055
    case V4L2_PIX_FMT_YYUV:    /* 16  YUV 4:2:2     */
    case V4L2_PIX_FMT_HI240:   /*  8  8-bit color   */
1056 1057 1058 1059 1060
    case V4L2_PIX_FMT_NV16:    /* 16  Y/CbCr 4:2:2  */
    case V4L2_PIX_FMT_NV16M:   /* Same as NV16      */
    case V4L2_PIX_FMT_NV61:    /* 16  Y/CrCb 4:2:2  */
    case V4L2_PIX_FMT_NV61M:   /* Same as NV61      */
    case V4L2_PIX_FMT_NV24:    /* 24  Y/CrCb 4:4:4  */
1061 1062
      rank = YUV_ODD_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1063 1064

    case V4L2_PIX_FMT_YVU410:  /* YVU9,  9 bits per pixel */
1065 1066
      rank = YUV_BASE_RANK + 3;
      break;
Rob Clark's avatar
Rob Clark committed
1067
    case V4L2_PIX_FMT_YUV410:  /* YUV9,  9 bits per pixel */
1068 1069
      rank = YUV_BASE_RANK + 2;
      break;
Rob Clark's avatar
Rob Clark committed
1070
    case V4L2_PIX_FMT_YUV420:  /* I420, 12 bits per pixel */
1071
    case V4L2_PIX_FMT_YUV420M:
1072 1073
      rank = YUV_BASE_RANK + 7;
      break;
Rob Clark's avatar
Rob Clark committed
1074
    case V4L2_PIX_FMT_YUYV:    /* YUY2, 16 bits per pixel */
1075 1076
      rank = YUV_BASE_RANK + 10;
      break;
Rob Clark's avatar
Rob Clark committed
1077
    case V4L2_PIX_FMT_YVU420:  /* YV12, 12 bits per pixel */
1078 1079
      rank = YUV_BASE_RANK + 6;
      break;
Rob Clark's avatar
Rob Clark committed
1080
    case V4L2_PIX_FMT_UYVY:    /* UYVY, 16 bits per pixel */
1081 1082
      rank = YUV_BASE_RANK + 9;
      break;
1083 1084 1085
    case V4L2_PIX_FMT_YUV444:
      rank = YUV_BASE_RANK + 6;
      break;
Rob Clark's avatar
Rob Clark committed
1086
    case V4L2_PIX_FMT_Y41P:    /* Y41P, 12 bits per pixel */
1087 1088
      rank = YUV_BASE_RANK + 5;
      break;
Rob Clark's avatar
Rob Clark committed
1089
    case V4L2_PIX_FMT_YUV411P: /* Y41B, 12 bits per pixel */
1090 1091
      rank = YUV_BASE_RANK + 4;
      break;
Rob Clark's avatar
Rob Clark committed
1092
    case V4L2_PIX_FMT_YUV422P: /* Y42B, 16 bits per pixel */
1093 1094
      rank = YUV_BASE_RANK + 8;
      break;
Rob Clark's avatar
Rob Clark committed
1095 1096

    case V4L2_PIX_FMT_DV:
1097 1098
      rank = DV_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1099 1100

    case V4L2_PIX_FMT_WNVA:    /* Winnov hw compres */
1101 1102
      rank = 0;
      break;
Rob Clark's avatar
Rob Clark committed
1103 1104

    case V4L2_PIX_FMT_SBGGR8:
1105 1106 1107
    case V4L2_PIX_FMT_SGBRG8:
    case V4L2_PIX_FMT_SGRBG8:
    case V4L2_PIX_FMT_SRGGB8:
1108 1109
      rank = BAYER_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1110 1111

    case V4L2_PIX_FMT_SN9C10X:
1112 1113
      rank = S910_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1114 1115

    case V4L2_PIX_FMT_PWC1:
1116 1117
      rank = PWC_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1118
    case V4L2_PIX_FMT_PWC2:
1119 1120
      rank = PWC_BASE_RANK;
      break;
Rob Clark's avatar
Rob Clark committed
1121 1122

    default:
1123
      rank = 0;
Rob Clark's avatar
Rob Clark committed
1124 1125 1126
      break;
  }

1127 1128 1129 1130 1131 1132 1133 1134
  /* All ranks are below 1<<15 so a shift by 15
   * will a) make all non-emulated formats larger
   * than emulated and b) will not overflow
   */
  if (!emulated)
    rank <<= 15;

  return rank;
Rob Clark's avatar
Rob Clark committed
1135 1136 1137 1138 1139 1140 1141
}



static gint
format_cmp_func (gconstpointer a, gconstpointer b)
{
1142 1143
  const struct v4l2_fmtdesc *fa = a;
  const struct v4l2_fmtdesc *fb = b;
Rob Clark's avatar
Rob Clark committed
1144

1145
  if (fa->pixelformat == fb->pixelformat)
Rob Clark's avatar
Rob Clark committed
1146 1147
    return 0;

1148 1149
  return gst_v4l2_object_format_get_rank (fb) -
      gst_v4l2_object_format_get_rank (fa);
Rob Clark's avatar
Rob Clark committed
1150 1151 1152 1153 1154 1155 1156 1157
}

/******************************************************
 * gst_v4l2_object_fill_format_list():
 *   create list of supported capture formats
 * return value: TRUE on success, FALSE on error
 ******************************************************/
static gboolean
1158 1159
gst_v4l2_object_fill_format_list (GstV4l2Object * v4l2object,
    enum v4l2_buf_type type)
Rob Clark's avatar
Rob Clark committed
1160 1161 1162 1163
{
  gint n;
  struct v4l2_fmtdesc *format;

1164
  GST_DEBUG_OBJECT (v4l2object->dbg_obj, "getting src format enumerations");
Rob Clark's avatar
Rob Clark committed
1165 1166 1167 1168 1169 1170

  /* format enumeration */
  for (n = 0;; n++) {
    format = g_new0 (struct v4l2_fmtdesc, 1);

    format->index = n;
1171
    format->type = type;
Rob Clark's avatar
Rob Clark committed
1172

1173
    if (v4l2object->ioctl (v4l2object->video_fd, VIDIOC_ENUM_FMT, format) < 0) {
Rob Clark's avatar
Rob Clark committed
1174 1175 1176 1177 1178 1179 1180 1181
      if (errno == EINVAL) {
        g_free (format);
        break;                  /* end of enumeration */
      } else {
        goto failed;
      }
    }

1182 1183 1184 1185
    GST_LOG_OBJECT (v4l2object->dbg_obj, "index:       %u", format->index);
    GST_LOG_OBJECT (v4l2object->dbg_obj, "type:        %d", format->type);
    GST_LOG_OBJECT (v4l2object->dbg_obj, "flags:       %08x", format->flags);
    GST_LOG_OBJECT (v4l2object->dbg_obj, "description: '%s'",
Rob Clark's avatar
Rob Clark committed
1186
        format->description);
1187
    GST_LOG_OBJECT (v4l2object->dbg_obj, "pixelformat: %" GST_FOURCC_FORMAT,
Rob Clark's avatar
Rob Clark committed
1188 1189 1190 1191 1192 1193 1194 1195 1196
        GST_FOURCC_ARGS (format->pixelformat));

    /* sort formats according to our preference;  we do this, because caps
     * are probed in the order the formats are in the list, and the order of
     * formats in the final probed caps matters for things like fixation */
    v4l2object->formats = g_slist_insert_sorted (v4l2object->formats, format,
        (GCompareFunc) format_cmp_func);
  }

1197 1198 1199 1200
#ifndef GST_DISABLE_GST_DEBUG
  {
    GSList *l;

1201
    GST_INFO_OBJECT (v4l2object->dbg_obj, "got %d format(s):", n);
1202 1203 1204
    for (l = v4l2object->formats; l != NULL; l = l->next) {
      format = l->data;

1205
      GST_INFO_OBJECT (v4l2object->dbg_obj,
1206 1207 1208 1209 1210
          "  %" GST_FOURCC_FORMAT "%s", GST_FOURCC_ARGS (format->pixelformat),
          ((format->flags & V4L2_FMT_FLAG_EMULATED)) ? " (emulated)" : "");
    }
  }
#endif
Rob Clark's avatar
Rob Clark committed
1211 1212 1213 1214 1215 1216

  return TRUE;

  /* ERRORS */
failed:
  {
1217 1218
    g_free (format);

1219
    if (v4l2object->element)
1220 1221
      return FALSE;

Rob Clark's avatar
Rob Clark committed
1222
    GST_ELEMENT_ERROR (v4l2object->element, RESOURCE, SETTINGS,
1223 1224 1225 1226
        (_("Failed to enumerate possible video formats device '%s' can work "
                "with"), v4l2object->videodev),
        ("Failed to get number %d in pixelformat enumeration for %s. (%d - %s)",
            n, v4l2object->videodev, errno, g_strerror (errno)));
1227

Rob Clark's avatar
Rob Clark committed
1228 1229 1230 1231
    return FALSE;
  }
}

Stefan Kost's avatar
Stefan Kost committed
1232
/*
1233 1234 1235
  * Get the list of supported capture formats, a list of
  * <code>struct v4l2_fmtdesc</code>.
  */
1236
static GSList *
Rob Clark's avatar
Rob Clark committed
1237 1238
gst_v4l2_object_get_format_list (GstV4l2Object * v4l2object)
{
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
  if (!v4l2object->formats) {

    /* check usual way */
    gst_v4l2_object_fill_format_list (v4l2object, v4l2object->type);

    /* if our driver supports multi-planar
     * and if formats are still empty then we can workaround driver bug
     * by also looking up formats as if our device was not supporting
     * multiplanar */
    if (!v4l2object->formats) {
      switch (v4l2object->type) {
        case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
          gst_v4l2_object_fill_format_list (v4l2object,
              V4L2_BUF_TYPE_VIDEO_CAPTURE);
          break;

        case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
          gst_v4l2_object_fill_format_list (v4l2object,
              V4L2_BUF_TYPE_VIDEO_OUTPUT);
          break;

        default:
          break;
      }
    }
  }
Rob Clark's avatar
Rob Clark committed
1265 1266 1267
  return v4l2object->formats;
}

1268 1269 1270 1271 1272 1273 1274 1275 1276
static GstVideoFormat
gst_v4l2_object_v4l2fourcc_to_video_format (guint32 fourcc)
{
  GstVideoFormat format;

  switch (fourcc) {
    case V4L2_PIX_FMT_GREY:    /*  8  Greyscale     */
      format = GST_VIDEO_FORMAT_GRAY8;
      break;
1277 1278 1279 1280 1281 1282 1283
    case V4L2_PIX_FMT_Y16:
      format = GST_VIDEO_FORMAT_GRAY16_LE;
      break;
    case V4L2_PIX_FMT_Y16_BE:
      format = GST_VIDEO_FORMAT_GRAY16_BE;
      break;
    case V4L2_PIX_FMT_XRGB555:
1284 1285 1286
    case V4L2_PIX_FMT_RGB555:
      format = GST_VIDEO_FORMAT_RGB15;
      break;
1287 1288 1289 1290
    case V4L2_PIX_FMT_XRGB555X:
    case V4L2_PIX_FMT_RGB555X:
      format = GST_VIDEO_FORMAT_BGR15;
      break;
1291 1292 1293 1294 1295 1296 1297 1298 1299
    case V4L2_PIX_FMT_RGB565:
      format = GST_VIDEO_FORMAT_RGB16;
      break;
    case V4L2_PIX_FMT_RGB24:
      format = GST_VIDEO_FORMAT_RGB;
      break;
    case V4L2_PIX_FMT_BGR24:
      format = GST_VIDEO_FORMAT_BGR;
      break;
1300
    case V4L2_PIX_FMT_XRGB32:
1301
    case V4L2_PIX_FMT_RGB32:
1302
      format = GST_VIDEO_FORMAT_xRGB;
1303
      break;
1304
    case V4L2_PIX_FMT_XBGR32:
1305 1306 1307
    case V4L2_PIX_FMT_BGR32:
      format = GST_VIDEO_FORMAT_BGRx;
      break;
1308 1309 1310 1311 1312 1313
    case V4L2_PIX_FMT_ABGR32:
      format = GST_VIDEO_FORMAT_BGRA;
      break;
    case V4L2_PIX_FMT_ARGB32:
      format = GST_VIDEO_FORMAT_ARGB;
      break;
1314 1315 1316 1317
    case V4L2_PIX_FMT_NV12:
    case V4L2_PIX_FMT_NV12M:
      format = GST_VIDEO_FORMAT_NV12;
      break;
1318 1319 1320
    case V4L2_PIX_FMT_NV12MT:
      format = GST_VIDEO_FORMAT_NV12_64Z32;
      break;
1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331
    case V4L2_PIX_FMT_NV21:
    case V4L2_PIX_FMT_NV21M:
      format = GST_VIDEO_FORMAT_NV21;
      break;
    case V4L2_PIX_FMT_YVU410:
      format = GST_VIDEO_FORMAT_YVU9;
      break;
    case V4L2_PIX_FMT_YUV410:
      format = GST_VIDEO_FORMAT_YUV9;
      break;
    case V4L2_PIX_FMT_YUV420:
1332
    case V4L2_PIX_FMT_YUV420M:
1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
      format = GST_VIDEO_FORMAT_I420;
      break;
    case V4L2_PIX_FMT_YUYV:
      format = GST_VIDEO_FORMAT_YUY2;
      break;
    case V4L2_PIX_FMT_YVU420:
      format = GST_VIDEO_FORMAT_YV12;
      break;
    case V4L2_PIX_FMT_UYVY:
      format = GST_VIDEO_FORMAT_UYVY;
      break;
    case V4L2_PIX_FMT_YUV411P:
      format = GST_VIDEO_FORMAT_Y41B;
      break;
    case V4L2_PIX_FMT_YUV422P:
      format = GST_VIDEO_FORMAT_Y42B;
      break;
    case V4L2_PIX_FMT_YVYU:
      format = GST_VIDEO_FORMAT_YVYU;
      break;
1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363
    case V4L2_PIX_FMT_NV16:
    case V4L2_PIX_FMT_NV16M:
      format = GST_VIDEO_FORMAT_NV16;
      break;
    case V4L2_PIX_FMT_NV61:
    case V4L2_PIX_FMT_NV61M:
      format = GST_VIDEO_FORMAT_NV61;
      break;
    case V4L2_PIX_FMT_NV24:
      format = GST_VIDEO_FORMAT_NV24;
      break;
1364 1365 1366 1367 1368 1369 1370
    default:
      format = GST_VIDEO_FORMAT_UNKNOWN;
      break;
  }

  return format;
}
Rob Clark's avatar
Rob Clark committed
1371

1372
static gboolean
1373
gst_v4l2_object_v4l2fourcc_is_rgb (guint32 fourcc)
1374 1375 1376 1377
{
  gboolean ret = FALSE;

  switch (fourcc) {
1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390
    case V4L2_PIX_FMT_XRGB555:
    case V4L2_PIX_FMT_RGB555:
    case V4L2_PIX_FMT_XRGB555X:
    case V4L2_PIX_FMT_RGB555X:
    case V4L2_PIX_FMT_RGB565:
    case V4L2_PIX_FMT_RGB24:
    case V4L2_PIX_FMT_BGR24:
    case V4L2_PIX_FMT_XRGB32:
    case V4L2_PIX_FMT_RGB32:
    case V4L2_PIX_FMT_XBGR32:
    case V4L2_PIX_FMT_BGR32:
    case V4L2_PIX_FMT_ABGR32:
    case V4L2_PIX_FMT_ARGB32:
1391 1392 1393 1394
    case V4L2_PIX_FMT_SBGGR8:
    case V4L2_PIX_FMT_SGBRG8:
    case V4L2_PIX_FMT_SGRBG8:
    case V4L2_PIX_FMT_SRGGB8:
1395 1396 1397 1398 1399 1400 1401 1402 1403
      ret = TRUE;
      break;
    default:
      break;
  }

  return ret;
}

1404 1405
static GstStructure *
gst_v4l2_object_v4l2fourcc_to_bare_struct (guint32 fourcc)
Rob Clark's avatar
Rob Clark committed
1406 1407 1408 1409 1410
{
  GstStructure *structure = NULL;

  switch (fourcc) {
    case V4L2_PIX_FMT_MJPEG:   /* Motion-JPEG */
Thiago Santos's avatar
Thiago Santos committed
1411
    case V4L2_PIX_FMT_PJPG:    /* Progressive-JPEG */
Rob Clark's avatar
Rob Clark committed
1412
    case V4L2_PIX_FMT_JPEG:    /* JFIF JPEG */
1413
      structure = gst_structure_new_empty ("image/jpeg");
Rob Clark's avatar
Rob Clark committed
1414
      break;
1415 1416 1417 1418 1419 1420 1421 1422
    case V4L2_PIX_FMT_MPEG1:
      structure = gst_structure_new ("video/mpeg",
          "mpegversion", G_TYPE_INT, 2, NULL);
      break;
    case V4L2_PIX_FMT_MPEG2:
      structure = gst_structure_new ("video/mpeg",
          "mpegversion", G_TYPE_INT, 2, NULL);
      break;
1423
    case V4L2_PIX_FMT_MPEG4:
1424
    case V4L2_PIX_FMT_XVID:
1425 1426 1427 1428
      structure = gst_structure_new ("video/mpeg",
          "mpegversion", G_TYPE_INT, 4, "systemstream",
          G_TYPE_BOOLEAN, FALSE, NULL);
      break;
1429 1430 1431
    case V4L2_PIX_FMT_FWHT:
      structure = gst_structure_new_empty ("video/x-fwht");
      break;
1432 1433 1434 1435
    case V4L2_PIX_FMT_H263:
      structure = gst_structure_new ("video/x-h263",
          "variant", G_TYPE_STRING, "itu", NULL);
      break;
1436
    case V4L2_PIX_FMT_H264:    /* H.264 */
Nicolas Dufresne's avatar
Nicolas Dufresne committed
1437 1438 1439
      structure = gst_structure_new ("video/x-h264",
          "stream-format", G_TYPE_STRING, "byte-stream", "alignment",
          G_TYPE_STRING, "au", NULL);
1440
      break;
1441 1442 1443 1444 1445
    case V4L2_PIX_FMT_H264_NO_SC:
      structure = gst_structure_new ("video/x-h264",
          "stream-format", G_TYPE_STRING, "avc", "alignment",
          G_TYPE_STRING, "au", NULL);
      break;
1446 1447 1448 1449 1450
    case V4L2_PIX_FMT_HEVC:    /* H.265 */
      structure = gst_structure_new ("video/x-h265",
          "stream-format", G_TYPE_STRING, "byte-stream", "alignment",
          G_TYPE_STRING, "au", NULL);
      break;
1451 1452 1453 1454 1455
    case V4L2_PIX_FMT_VC1_ANNEX_G:
    case V4L2_PIX_FMT_VC1_ANNEX_L:
      structure = gst_structure_new ("video/x-wmv",
          "wmvversion", G_TYPE_INT, 3, "format", G_TYPE_STRING, "WVC1", NULL);
      break;
1456 1457 1458
    case V4L2_PIX_FMT_VP8:
      structure = gst_structure_new_empty ("video/x-vp8");
      break;
1459 1460 1461
    case V4L2_PIX_FMT_VP9:
      structure = gst_structure_new_empty ("video/x-vp9");
      break;
1462
    case V4L2_PIX_FMT_GREY:    /*  8  Greyscale     */
1463 1464 1465
    case V4L2_PIX_FMT_Y16:
    case V4L2_PIX_FMT_Y16_BE:
    case V4L2_PIX_FMT_XRGB555:
1466
    case V4L2_PIX_FMT_RGB555:
1467 1468
    case V4L2_PIX_FMT_XRGB555X:
    case V4L2_PIX_FMT_RGB555X:
1469 1470 1471 1472
    case V4L2_PIX_FMT_RGB565:
    case V4L2_PIX_FMT_RGB24:
    case V4L2_PIX_FMT_BGR24:
    case V4L2_PIX_FMT_RGB32:
1473 1474
    case V4L2_PIX_FMT_XRGB32:
    case V4L2_PIX_FMT_ARGB32:
1475
    case V4L2_PIX_FMT_BGR32:
1476 1477
    case V4L2_PIX_FMT_XBGR32:
    case V4L2_PIX_FMT_ABGR32:
Rob Clark's avatar
Rob Clark committed
1478
    case V4L2_PIX_FMT_NV12:    /* 12  Y/CbCr 4:2:0  */
1479
    case V4L2_PIX_FMT_NV12M:
1480
    case V4L2_PIX_FMT_NV12MT:
Rob Clark's avatar
Rob Clark committed
1481
    case V4L2_PIX_FMT_NV21:    /* 12  Y/CrCb 4:2:0  */
1482
    case V4L2_PIX_FMT_NV21M:
1483 1484 1485 1486 1487
    case V4L2_PIX_FMT_NV16:    /* 16  Y/CbCr 4:2:2  */
    case V4L2_PIX_FMT_NV16M:
    case V4L2_PIX_FMT_NV61:    /* 16  Y/CrCb 4:2:2  */
    case V4L2_PIX_FMT_NV61M:
    case V4L2_PIX_FMT_NV24:    /* 24  Y/CrCb 4:4:4  */
Rob Clark's avatar
Rob Clark committed
1488 1489 1490
    case V4L2_PIX_FMT_YVU410:
    case V4L2_PIX_FMT_YUV410:
    case V4L2_PIX_FMT_YUV420:  /* I420/IYUV */
1491
    case V4L2_PIX_FMT_YUV420M:
Rob Clark's avatar
Rob Clark committed
1492 1493 1494 1495 1496 1497
    case V4L2_PIX_FMT_YUYV:
    case V4L2_PIX_FMT_YVU420:
    case V4L2_PIX_FMT_UYVY:
    case V4L2_PIX_FMT_YUV422P:
    case V4L2_PIX_FMT_YVYU:
    case V4L2_PIX_FMT_YUV411P:{
1498
      GstVideoFormat format;
1499
      format = gst_v4l2_object_v4l2fourcc_to_video_format (fourcc);
1500 1501 1502
      if (format != GST_VIDEO_FORMAT_UNKNOWN)
        structure = gst_structure_new ("video/x-raw",
            "format", G_TYPE_STRING, gst_video_format_to_string (format), NULL);
Rob Clark's avatar
Rob Clark committed
1503 1504 1505 1506 1507 1508 1509 1510
      break;
    }
    case V4L2_PIX_FMT_DV:
      structure =
          gst_structure_new ("video/x-dv", "systemstream", G_TYPE_BOOLEAN, TRUE,
          NULL);
      break;
    case V4L2_PIX_FMT_MPEG:    /* MPEG          */
1511 1512
      structure = gst_structure_new ("video/mpegts",
          "systemstream", G_TYPE_BOOLEAN, TRUE, NULL);
Rob Clark's avatar
Rob Clark committed
1513 1514 1515 1516
      break;
    case V4L2_PIX_FMT_WNVA:    /* Winnov hw compres */
      break;
    case V4L2_PIX_FMT_SBGGR8:
1517 1518 1519 1520 1521 1522 1523 1524
    case V4L2_PIX_FMT_SGBRG8:
    case V4L2_PIX_FMT_SGRBG8:
    case V4L2_PIX_FMT_SRGGB8:
      structure = gst_structure_new ("video/x-bayer", "format", G_TYPE_STRING,
          fourcc == V4L2_PIX_FMT_SBGGR8 ? "bggr" :
          fourcc == V4L2_PIX_FMT_SGBRG8 ? "gbrg" :
          fourcc == V4L2_PIX_FMT_SGRBG8 ? "grbg" :
          /* fourcc == V4L2_PIX_FMT_SRGGB8 ? */ "rggb", NULL);
Rob Clark's avatar
Rob Clark committed
1525 1526
      break;
    case V4L2_PIX_FMT_SN9C10X:
1527
      structure = gst_structure_new_empty ("video/x-sonix");
Rob Clark's avatar
Rob Clark committed
1528 1529
      break;
    case V4L2_PIX_FMT_PWC1:
1530
      structure = gst_structure_new_empty ("video/x-pwc1");
Rob Clark's avatar
Rob Clark committed
1531 1532
      break;
    case V4L2_PIX_FMT_PWC2:
1533
      structure = gst_structure_new_empty ("video/x-pwc2");
Rob Clark's avatar
Rob Clark committed
1534
      break;
1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554
    case V4L2_PIX_FMT_RGB332:
    case V4L2_PIX_FMT_BGR666:
    case V4L2_PIX_FMT_ARGB555X:
    case V4L2_PIX_FMT_RGB565X:
    case V4L2_PIX_FMT_RGB444:
    case V4L2_PIX_FMT_YYUV:    /* 16  YUV 4:2:2     */
    case V4L2_PIX_FMT_HI240:   /*  8  8-bit color   */
    case V4L2_PIX_FMT_Y4:
    case V4L2_PIX_FMT_Y6:
    case V4L2_PIX_FMT_Y10:
    case V4L2_PIX_FMT_Y12:
    case V4L2_PIX_FMT_Y10BPACK:
    case V4L2_PIX_FMT_YUV444:
    case V4L2_PIX_FMT_YUV555:
    case V4L2_PIX_FMT_YUV565:
    case V4L2_PIX_FMT_Y41P:
    case V4L2_PIX_FMT_YUV32:
    case V4L2_PIX_FMT_NV12MT_16X16:
    case V4L2_PIX_FMT_NV42:
    case V4L2_PIX_FMT_H264_MVC:
Rob Clark's avatar
Rob Clark committed
1555
    default:
1556
      GST_DEBUG ("Unsupported fourcc 0x%08x %" GST_FOURCC_FORMAT,
Rob Clark's avatar
Rob Clark committed
1557 1558 1559 1560 1561 1562 1563
          fourcc, GST_FOURCC_ARGS (fourcc));
      break;
  }

  return structure;
}

1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582
GstStructure *
gst_v4l2_object_v4l2fourcc_to_structure (guint32 fourcc)
{
  GstStructure *template;
  gint i;

  template = gst_v4l2_object_v4l2fourcc_to_bare_struct (fourcc);

  if (template == NULL)
    goto done;

  for (i = 0; i < GST_V4L2_FORMAT_COUNT; i++) {
    if (gst_v4l2_formats[i].format != fourcc)
      continue;