diff options
Diffstat (limited to 'drivers/media/video')
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 109 |
1 files changed, 59 insertions, 50 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index 0a96cc35738c..da4791de7050 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -362,63 +362,72 @@ const char **v4l2_ctrl_get_menu(u32 id) } EXPORT_SYMBOL(v4l2_ctrl_get_menu); -/* Fill in a struct v4l2_queryctrl */ -int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def) +/* Return the control name. */ +const char *v4l2_ctrl_get_name(u32 id) { - const char *name; - - qctrl->flags = 0; - switch (qctrl->id) { + switch (id) { /* USER controls */ - case V4L2_CID_USER_CLASS: name = "User Controls"; break; - case V4L2_CID_AUDIO_VOLUME: name = "Volume"; break; - case V4L2_CID_AUDIO_MUTE: name = "Mute"; break; - case V4L2_CID_AUDIO_BALANCE: name = "Balance"; break; - case V4L2_CID_AUDIO_BASS: name = "Bass"; break; - case V4L2_CID_AUDIO_TREBLE: name = "Treble"; break; - case V4L2_CID_AUDIO_LOUDNESS: name = "Loudness"; break; - case V4L2_CID_BRIGHTNESS: name = "Brightness"; break; - case V4L2_CID_CONTRAST: name = "Contrast"; break; - case V4L2_CID_SATURATION: name = "Saturation"; break; - case V4L2_CID_HUE: name = "Hue"; break; + case V4L2_CID_USER_CLASS: return "User Controls"; + case V4L2_CID_AUDIO_VOLUME: return "Volume"; + case V4L2_CID_AUDIO_MUTE: return "Mute"; + case V4L2_CID_AUDIO_BALANCE: return "Balance"; + case V4L2_CID_AUDIO_BASS: return "Bass"; + case V4L2_CID_AUDIO_TREBLE: return "Treble"; + case V4L2_CID_AUDIO_LOUDNESS: return "Loudness"; + case V4L2_CID_BRIGHTNESS: return "Brightness"; + case V4L2_CID_CONTRAST: return "Contrast"; + case V4L2_CID_SATURATION: return "Saturation"; + case V4L2_CID_HUE: return "Hue"; /* MPEG controls */ - case V4L2_CID_MPEG_CLASS: name = "MPEG Encoder Controls"; break; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: name = "Audio Sampling Frequency"; break; - case V4L2_CID_MPEG_AUDIO_ENCODING: name = "Audio Encoding"; break; - case V4L2_CID_MPEG_AUDIO_L1_BITRATE: name = "Audio Layer I Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: name = "Audio Layer II Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_L3_BITRATE: name = "Audio Layer III Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: name = "Audio AC-3 Bitrate"; break; - case V4L2_CID_MPEG_AUDIO_MODE: name = "Audio Stereo Mode"; break; - case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: name = "Audio Stereo Mode Extension"; break; - case V4L2_CID_MPEG_AUDIO_EMPHASIS: name = "Audio Emphasis"; break; - case V4L2_CID_MPEG_AUDIO_CRC: name = "Audio CRC"; break; - case V4L2_CID_MPEG_AUDIO_MUTE: name = "Audio Mute"; break; - case V4L2_CID_MPEG_VIDEO_ENCODING: name = "Video Encoding"; break; - case V4L2_CID_MPEG_VIDEO_ASPECT: name = "Video Aspect"; break; - case V4L2_CID_MPEG_VIDEO_B_FRAMES: name = "Video B Frames"; break; - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: name = "Video GOP Size"; break; - case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: name = "Video GOP Closure"; break; - case V4L2_CID_MPEG_VIDEO_PULLDOWN: name = "Video Pulldown"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: name = "Video Bitrate Mode"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE: name = "Video Bitrate"; break; - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: name = "Video Peak Bitrate"; break; - case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: name = "Video Temporal Decimation"; break; - case V4L2_CID_MPEG_VIDEO_MUTE: name = "Video Mute"; break; - case V4L2_CID_MPEG_VIDEO_MUTE_YUV: name = "Video Mute YUV"; break; - case V4L2_CID_MPEG_STREAM_TYPE: name = "Stream Type"; break; - case V4L2_CID_MPEG_STREAM_PID_PMT: name = "Stream PMT Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_AUDIO: name = "Stream Audio Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_VIDEO: name = "Stream Video Program ID"; break; - case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break; - case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break; - case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break; - case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break; + case V4L2_CID_MPEG_CLASS: return "MPEG Encoder Controls"; + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: return "Audio Sampling Frequency"; + case V4L2_CID_MPEG_AUDIO_ENCODING: return "Audio Encoding"; + case V4L2_CID_MPEG_AUDIO_L1_BITRATE: return "Audio Layer I Bitrate"; + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: return "Audio Layer II Bitrate"; + case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return "Audio Layer III Bitrate"; + case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: return "Audio AC-3 Bitrate"; + case V4L2_CID_MPEG_AUDIO_MODE: return "Audio Stereo Mode"; + case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: return "Audio Stereo Mode Extension"; + case V4L2_CID_MPEG_AUDIO_EMPHASIS: return "Audio Emphasis"; + case V4L2_CID_MPEG_AUDIO_CRC: return "Audio CRC"; + case V4L2_CID_MPEG_AUDIO_MUTE: return "Audio Mute"; + case V4L2_CID_MPEG_VIDEO_ENCODING: return "Video Encoding"; + case V4L2_CID_MPEG_VIDEO_ASPECT: return "Video Aspect"; + case V4L2_CID_MPEG_VIDEO_B_FRAMES: return "Video B Frames"; + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: return "Video GOP Size"; + case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: return "Video GOP Closure"; + case V4L2_CID_MPEG_VIDEO_PULLDOWN: return "Video Pulldown"; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: return "Video Bitrate Mode"; + case V4L2_CID_MPEG_VIDEO_BITRATE: return "Video Bitrate"; + case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: return "Video Peak Bitrate"; + case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: return "Video Temporal Decimation"; + case V4L2_CID_MPEG_VIDEO_MUTE: return "Video Mute"; + case V4L2_CID_MPEG_VIDEO_MUTE_YUV: return "Video Mute YUV"; + case V4L2_CID_MPEG_STREAM_TYPE: return "Stream Type"; + case V4L2_CID_MPEG_STREAM_PID_PMT: return "Stream PMT Program ID"; + case V4L2_CID_MPEG_STREAM_PID_AUDIO: return "Stream Audio Program ID"; + case V4L2_CID_MPEG_STREAM_PID_VIDEO: return "Stream Video Program ID"; + case V4L2_CID_MPEG_STREAM_PID_PCR: return "Stream PCR Program ID"; + case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: return "Stream PES Audio ID"; + case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return "Stream PES Video ID"; + case V4L2_CID_MPEG_STREAM_VBI_FMT: return "Stream VBI Format"; default: - return -EINVAL; + return NULL; } +} +EXPORT_SYMBOL(v4l2_ctrl_get_name); + +/* Fill in a struct v4l2_queryctrl */ +int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def) +{ + const char *name = v4l2_ctrl_get_name(qctrl->id); + + qctrl->flags = 0; + if (name == NULL) + return -EINVAL; + switch (qctrl->id) { case V4L2_CID_AUDIO_MUTE: case V4L2_CID_AUDIO_LOUDNESS: |