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path: root/drivers/media/video/v4l2-common.c
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Diffstat (limited to 'drivers/media/video/v4l2-common.c')
-rw-r--r--drivers/media/video/v4l2-common.c183
1 files changed, 127 insertions, 56 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 88ca13104417..20c3be8617ea 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -187,9 +187,11 @@ const char **v4l2_ctrl_get_menu(u32 id)
187 NULL 187 NULL
188 }; 188 };
189 static const char *mpeg_audio_encoding[] = { 189 static const char *mpeg_audio_encoding[] = {
190 "Layer I", 190 "MPEG-1/2 Layer I",
191 "Layer II", 191 "MPEG-1/2 Layer II",
192 "Layer III", 192 "MPEG-1/2 Layer III",
193 "MPEG-2/4 AAC",
194 "AC-3",
193 NULL 195 NULL
194 }; 196 };
195 static const char *mpeg_audio_l1_bitrate[] = { 197 static const char *mpeg_audio_l1_bitrate[] = {
@@ -243,6 +245,28 @@ const char **v4l2_ctrl_get_menu(u32 id)
243 "320 kbps", 245 "320 kbps",
244 NULL 246 NULL
245 }; 247 };
248 static const char *mpeg_audio_ac3_bitrate[] = {
249 "32 kbps",
250 "40 kbps",
251 "48 kbps",
252 "56 kbps",
253 "64 kbps",
254 "80 kbps",
255 "96 kbps",
256 "112 kbps",
257 "128 kbps",
258 "160 kbps",
259 "192 kbps",
260 "224 kbps",
261 "256 kbps",
262 "320 kbps",
263 "384 kbps",
264 "448 kbps",
265 "512 kbps",
266 "576 kbps",
267 "640 kbps",
268 NULL
269 };
246 static const char *mpeg_audio_mode[] = { 270 static const char *mpeg_audio_mode[] = {
247 "Stereo", 271 "Stereo",
248 "Joint Stereo", 272 "Joint Stereo",
@@ -271,6 +295,7 @@ const char **v4l2_ctrl_get_menu(u32 id)
271 static const char *mpeg_video_encoding[] = { 295 static const char *mpeg_video_encoding[] = {
272 "MPEG-1", 296 "MPEG-1",
273 "MPEG-2", 297 "MPEG-2",
298 "MPEG-4 AVC",
274 NULL 299 NULL
275 }; 300 };
276 static const char *mpeg_video_aspect[] = { 301 static const char *mpeg_video_aspect[] = {
@@ -311,6 +336,8 @@ const char **v4l2_ctrl_get_menu(u32 id)
311 return mpeg_audio_l2_bitrate; 336 return mpeg_audio_l2_bitrate;
312 case V4L2_CID_MPEG_AUDIO_L3_BITRATE: 337 case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
313 return mpeg_audio_l3_bitrate; 338 return mpeg_audio_l3_bitrate;
339 case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
340 return mpeg_audio_ac3_bitrate;
314 case V4L2_CID_MPEG_AUDIO_MODE: 341 case V4L2_CID_MPEG_AUDIO_MODE:
315 return mpeg_audio_mode; 342 return mpeg_audio_mode;
316 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: 343 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
@@ -335,62 +362,73 @@ const char **v4l2_ctrl_get_menu(u32 id)
335} 362}
336EXPORT_SYMBOL(v4l2_ctrl_get_menu); 363EXPORT_SYMBOL(v4l2_ctrl_get_menu);
337 364
338/* Fill in a struct v4l2_queryctrl */ 365/* Return the control name. */
339int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def) 366const char *v4l2_ctrl_get_name(u32 id)
340{ 367{
341 const char *name; 368 switch (id) {
342
343 qctrl->flags = 0;
344 switch (qctrl->id) {
345 /* USER controls */ 369 /* USER controls */
346 case V4L2_CID_USER_CLASS: name = "User Controls"; break; 370 case V4L2_CID_USER_CLASS: return "User Controls";
347 case V4L2_CID_AUDIO_VOLUME: name = "Volume"; break; 371 case V4L2_CID_AUDIO_VOLUME: return "Volume";
348 case V4L2_CID_AUDIO_MUTE: name = "Mute"; break; 372 case V4L2_CID_AUDIO_MUTE: return "Mute";
349 case V4L2_CID_AUDIO_BALANCE: name = "Balance"; break; 373 case V4L2_CID_AUDIO_BALANCE: return "Balance";
350 case V4L2_CID_AUDIO_BASS: name = "Bass"; break; 374 case V4L2_CID_AUDIO_BASS: return "Bass";
351 case V4L2_CID_AUDIO_TREBLE: name = "Treble"; break; 375 case V4L2_CID_AUDIO_TREBLE: return "Treble";
352 case V4L2_CID_AUDIO_LOUDNESS: name = "Loudness"; break; 376 case V4L2_CID_AUDIO_LOUDNESS: return "Loudness";
353 case V4L2_CID_BRIGHTNESS: name = "Brightness"; break; 377 case V4L2_CID_BRIGHTNESS: return "Brightness";
354 case V4L2_CID_CONTRAST: name = "Contrast"; break; 378 case V4L2_CID_CONTRAST: return "Contrast";
355 case V4L2_CID_SATURATION: name = "Saturation"; break; 379 case V4L2_CID_SATURATION: return "Saturation";
356 case V4L2_CID_HUE: name = "Hue"; break; 380 case V4L2_CID_HUE: return "Hue";
357 381
358 /* MPEG controls */ 382 /* MPEG controls */
359 case V4L2_CID_MPEG_CLASS: name = "MPEG Encoder Controls"; break; 383 case V4L2_CID_MPEG_CLASS: return "MPEG Encoder Controls";
360 case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: name = "Audio Sampling Frequency"; break; 384 case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: return "Audio Sampling Frequency";
361 case V4L2_CID_MPEG_AUDIO_ENCODING: name = "Audio Encoding Layer"; break; 385 case V4L2_CID_MPEG_AUDIO_ENCODING: return "Audio Encoding";
362 case V4L2_CID_MPEG_AUDIO_L1_BITRATE: name = "Audio Layer I Bitrate"; break; 386 case V4L2_CID_MPEG_AUDIO_L1_BITRATE: return "Audio Layer I Bitrate";
363 case V4L2_CID_MPEG_AUDIO_L2_BITRATE: name = "Audio Layer II Bitrate"; break; 387 case V4L2_CID_MPEG_AUDIO_L2_BITRATE: return "Audio Layer II Bitrate";
364 case V4L2_CID_MPEG_AUDIO_L3_BITRATE: name = "Audio Layer III Bitrate"; break; 388 case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return "Audio Layer III Bitrate";
365 case V4L2_CID_MPEG_AUDIO_MODE: name = "Audio Stereo Mode"; break; 389 case V4L2_CID_MPEG_AUDIO_AAC_BITRATE: return "Audio AAC Bitrate";
366 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: name = "Audio Stereo Mode Extension"; break; 390 case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: return "Audio AC-3 Bitrate";
367 case V4L2_CID_MPEG_AUDIO_EMPHASIS: name = "Audio Emphasis"; break; 391 case V4L2_CID_MPEG_AUDIO_MODE: return "Audio Stereo Mode";
368 case V4L2_CID_MPEG_AUDIO_CRC: name = "Audio CRC"; break; 392 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: return "Audio Stereo Mode Extension";
369 case V4L2_CID_MPEG_AUDIO_MUTE: name = "Audio Mute"; break; 393 case V4L2_CID_MPEG_AUDIO_EMPHASIS: return "Audio Emphasis";
370 case V4L2_CID_MPEG_VIDEO_ENCODING: name = "Video Encoding"; break; 394 case V4L2_CID_MPEG_AUDIO_CRC: return "Audio CRC";
371 case V4L2_CID_MPEG_VIDEO_ASPECT: name = "Video Aspect"; break; 395 case V4L2_CID_MPEG_AUDIO_MUTE: return "Audio Mute";
372 case V4L2_CID_MPEG_VIDEO_B_FRAMES: name = "Video B Frames"; break; 396 case V4L2_CID_MPEG_VIDEO_ENCODING: return "Video Encoding";
373 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: name = "Video GOP Size"; break; 397 case V4L2_CID_MPEG_VIDEO_ASPECT: return "Video Aspect";
374 case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: name = "Video GOP Closure"; break; 398 case V4L2_CID_MPEG_VIDEO_B_FRAMES: return "Video B Frames";
375 case V4L2_CID_MPEG_VIDEO_PULLDOWN: name = "Video Pulldown"; break; 399 case V4L2_CID_MPEG_VIDEO_GOP_SIZE: return "Video GOP Size";
376 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: name = "Video Bitrate Mode"; break; 400 case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: return "Video GOP Closure";
377 case V4L2_CID_MPEG_VIDEO_BITRATE: name = "Video Bitrate"; break; 401 case V4L2_CID_MPEG_VIDEO_PULLDOWN: return "Video Pulldown";
378 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: name = "Video Peak Bitrate"; break; 402 case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: return "Video Bitrate Mode";
379 case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: name = "Video Temporal Decimation"; break; 403 case V4L2_CID_MPEG_VIDEO_BITRATE: return "Video Bitrate";
380 case V4L2_CID_MPEG_VIDEO_MUTE: name = "Video Mute"; break; 404 case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: return "Video Peak Bitrate";
381 case V4L2_CID_MPEG_VIDEO_MUTE_YUV: name = "Video Mute YUV"; break; 405 case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: return "Video Temporal Decimation";
382 case V4L2_CID_MPEG_STREAM_TYPE: name = "Stream Type"; break; 406 case V4L2_CID_MPEG_VIDEO_MUTE: return "Video Mute";
383 case V4L2_CID_MPEG_STREAM_PID_PMT: name = "Stream PMT Program ID"; break; 407 case V4L2_CID_MPEG_VIDEO_MUTE_YUV: return "Video Mute YUV";
384 case V4L2_CID_MPEG_STREAM_PID_AUDIO: name = "Stream Audio Program ID"; break; 408 case V4L2_CID_MPEG_STREAM_TYPE: return "Stream Type";
385 case V4L2_CID_MPEG_STREAM_PID_VIDEO: name = "Stream Video Program ID"; break; 409 case V4L2_CID_MPEG_STREAM_PID_PMT: return "Stream PMT Program ID";
386 case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break; 410 case V4L2_CID_MPEG_STREAM_PID_AUDIO: return "Stream Audio Program ID";
387 case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break; 411 case V4L2_CID_MPEG_STREAM_PID_VIDEO: return "Stream Video Program ID";
388 case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break; 412 case V4L2_CID_MPEG_STREAM_PID_PCR: return "Stream PCR Program ID";
389 case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break; 413 case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: return "Stream PES Audio ID";
414 case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return "Stream PES Video ID";
415 case V4L2_CID_MPEG_STREAM_VBI_FMT: return "Stream VBI Format";
390 416
391 default: 417 default:
392 return -EINVAL; 418 return NULL;
393 } 419 }
420}
421EXPORT_SYMBOL(v4l2_ctrl_get_name);
422
423/* Fill in a struct v4l2_queryctrl */
424int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def)
425{
426 const char *name = v4l2_ctrl_get_name(qctrl->id);
427
428 qctrl->flags = 0;
429 if (name == NULL)
430 return -EINVAL;
431
394 switch (qctrl->id) { 432 switch (qctrl->id) {
395 case V4L2_CID_AUDIO_MUTE: 433 case V4L2_CID_AUDIO_MUTE:
396 case V4L2_CID_AUDIO_LOUDNESS: 434 case V4L2_CID_AUDIO_LOUDNESS:
@@ -407,6 +445,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
407 case V4L2_CID_MPEG_AUDIO_L1_BITRATE: 445 case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
408 case V4L2_CID_MPEG_AUDIO_L2_BITRATE: 446 case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
409 case V4L2_CID_MPEG_AUDIO_L3_BITRATE: 447 case V4L2_CID_MPEG_AUDIO_L3_BITRATE:
448 case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
410 case V4L2_CID_MPEG_AUDIO_MODE: 449 case V4L2_CID_MPEG_AUDIO_MODE:
411 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: 450 case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION:
412 case V4L2_CID_MPEG_AUDIO_EMPHASIS: 451 case V4L2_CID_MPEG_AUDIO_EMPHASIS:
@@ -493,7 +532,7 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
493 case V4L2_CID_MPEG_AUDIO_ENCODING: 532 case V4L2_CID_MPEG_AUDIO_ENCODING:
494 return v4l2_ctrl_query_fill(qctrl, 533 return v4l2_ctrl_query_fill(qctrl,
495 V4L2_MPEG_AUDIO_ENCODING_LAYER_1, 534 V4L2_MPEG_AUDIO_ENCODING_LAYER_1,
496 V4L2_MPEG_AUDIO_ENCODING_LAYER_3, 1, 535 V4L2_MPEG_AUDIO_ENCODING_AC3, 1,
497 V4L2_MPEG_AUDIO_ENCODING_LAYER_2); 536 V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
498 case V4L2_CID_MPEG_AUDIO_L1_BITRATE: 537 case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
499 return v4l2_ctrl_query_fill(qctrl, 538 return v4l2_ctrl_query_fill(qctrl,
@@ -510,6 +549,13 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
510 V4L2_MPEG_AUDIO_L3_BITRATE_32K, 549 V4L2_MPEG_AUDIO_L3_BITRATE_32K,
511 V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1, 550 V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1,
512 V4L2_MPEG_AUDIO_L3_BITRATE_192K); 551 V4L2_MPEG_AUDIO_L3_BITRATE_192K);
552 case V4L2_CID_MPEG_AUDIO_AAC_BITRATE:
553 return v4l2_ctrl_query_fill(qctrl, 0, 6400, 1, 3200000);
554 case V4L2_CID_MPEG_AUDIO_AC3_BITRATE:
555 return v4l2_ctrl_query_fill(qctrl,
556 V4L2_MPEG_AUDIO_AC3_BITRATE_32K,
557 V4L2_MPEG_AUDIO_AC3_BITRATE_640K, 1,
558 V4L2_MPEG_AUDIO_AC3_BITRATE_384K);
513 case V4L2_CID_MPEG_AUDIO_MODE: 559 case V4L2_CID_MPEG_AUDIO_MODE:
514 return v4l2_ctrl_query_fill(qctrl, 560 return v4l2_ctrl_query_fill(qctrl,
515 V4L2_MPEG_AUDIO_MODE_STEREO, 561 V4L2_MPEG_AUDIO_MODE_STEREO,
@@ -535,7 +581,7 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
535 case V4L2_CID_MPEG_VIDEO_ENCODING: 581 case V4L2_CID_MPEG_VIDEO_ENCODING:
536 return v4l2_ctrl_query_fill(qctrl, 582 return v4l2_ctrl_query_fill(qctrl,
537 V4L2_MPEG_VIDEO_ENCODING_MPEG_1, 583 V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
538 V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1, 584 V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, 1,
539 V4L2_MPEG_VIDEO_ENCODING_MPEG_2); 585 V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
540 case V4L2_CID_MPEG_VIDEO_ASPECT: 586 case V4L2_CID_MPEG_VIDEO_ASPECT:
541 return v4l2_ctrl_query_fill(qctrl, 587 return v4l2_ctrl_query_fill(qctrl,
@@ -594,12 +640,17 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
594EXPORT_SYMBOL(v4l2_ctrl_query_fill_std); 640EXPORT_SYMBOL(v4l2_ctrl_query_fill_std);
595 641
596/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and 642/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and
597 the menu. The qctrl pointer may be NULL, in which case it is ignored. */ 643 the menu. The qctrl pointer may be NULL, in which case it is ignored.
644 If menu_items is NULL, then the menu items are retrieved using
645 v4l2_ctrl_get_menu. */
598int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, 646int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl,
599 const char **menu_items) 647 const char **menu_items)
600{ 648{
601 int i; 649 int i;
602 650
651 qmenu->reserved = 0;
652 if (menu_items == NULL)
653 menu_items = v4l2_ctrl_get_menu(qmenu->id);
603 if (menu_items == NULL || 654 if (menu_items == NULL ||
604 (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum))) 655 (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum)))
605 return -EINVAL; 656 return -EINVAL;
@@ -607,11 +658,31 @@ int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qc
607 if (menu_items[i] == NULL || menu_items[i][0] == '\0') 658 if (menu_items[i] == NULL || menu_items[i][0] == '\0')
608 return -EINVAL; 659 return -EINVAL;
609 snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]); 660 snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]);
610 qmenu->reserved = 0;
611 return 0; 661 return 0;
612} 662}
613EXPORT_SYMBOL(v4l2_ctrl_query_menu); 663EXPORT_SYMBOL(v4l2_ctrl_query_menu);
614 664
665/* Fill in a struct v4l2_querymenu based on the specified array of valid
666 menu items (terminated by V4L2_CTRL_MENU_IDS_END).
667 Use this if there are 'holes' in the list of valid menu items. */
668int v4l2_ctrl_query_menu_valid_items(struct v4l2_querymenu *qmenu, const u32 *ids)
669{
670 const char **menu_items = v4l2_ctrl_get_menu(qmenu->id);
671
672 qmenu->reserved = 0;
673 if (menu_items == NULL || ids == NULL)
674 return -EINVAL;
675 while (*ids != V4L2_CTRL_MENU_IDS_END) {
676 if (*ids++ == qmenu->index) {
677 snprintf(qmenu->name, sizeof(qmenu->name),
678 menu_items[qmenu->index]);
679 return 0;
680 }
681 }
682 return -EINVAL;
683}
684EXPORT_SYMBOL(v4l2_ctrl_query_menu_valid_items);
685
615/* ctrl_classes points to an array of u32 pointers, the last element is 686/* ctrl_classes points to an array of u32 pointers, the last element is
616 a NULL pointer. Each u32 array is a 0-terminated array of control IDs. 687 a NULL pointer. Each u32 array is a 0-terminated array of control IDs.
617 Each array must be sorted low to high and belong to the same control 688 Each array must be sorted low to high and belong to the same control
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 07:56:20 -0500