From 5b59056968698df6812231be56c058efe8c0e629 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 4 Jun 2006 10:06:18 -0300 Subject: Several improvements at videodev.c From: Mauro Carvalho Chehab Videodev now is capable of better handling V4L2 api, by processing V4L2 ioctls and using callbacks to the driver. The drivers should be migrated to the newer way and the older one will be obsoleted soon. Signed-off-by: Mauro Carvalho Chehab --- linux/drivers/media/video/v4l2-common.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'linux/drivers/media/video/v4l2-common.c') diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index 4b7ef8350..c1697f045 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -60,6 +60,7 @@ #include #include #include +#define __OLD_VIDIOC_ /* To allow fixing old calls*/ #include #ifdef CONFIG_KMOD @@ -444,7 +445,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) case TUNER_SET_TYPE_ADDR: case TUNER_SET_STANDBY: case TDA9887_SET_CONFIG: +#ifdef __OLD_VIDIOC_ case VIDIOC_OVERLAY_OLD: +#endif case VIDIOC_STREAMOFF: case VIDIOC_G_OUTPUT: case VIDIOC_S_OUTPUT: @@ -460,7 +463,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) case VIDIOC_G_AUDIO: case VIDIOC_S_AUDIO: case VIDIOC_ENUMAUDIO: +#ifdef __OLD_VIDIOC_ case VIDIOC_G_AUDIO_OLD: +#endif { struct v4l2_audio *p=arg; @@ -471,7 +476,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) case VIDIOC_G_AUDOUT: case VIDIOC_S_AUDOUT: case VIDIOC_ENUMAUDOUT: +#ifdef __OLD_VIDIOC_ case VIDIOC_G_AUDOUT_OLD: +#endif { struct v4l2_audioout *p=arg; printk ("%s: index=%d, name=%s, capability=%d, mode=%d\n", s, @@ -516,7 +523,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) } case VIDIOC_G_CTRL: case VIDIOC_S_CTRL: +#ifdef __OLD_VIDIOC_ case VIDIOC_S_CTRL_OLD: +#endif { struct v4l2_control *p=arg; printk ("%s: id=%d, value=%d\n", s, p->id, p->value); @@ -531,7 +540,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) break; } case VIDIOC_CROPCAP: +#ifdef __OLD_VIDIOC_ case VIDIOC_CROPCAP_OLD: +#endif { struct v4l2_cropcap *p=arg; /*FIXME: Should also show rect structs */ @@ -734,7 +745,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) } case VIDIOC_G_PARM: case VIDIOC_S_PARM: +#ifdef __OLD_VIDIOC_ case VIDIOC_S_PARM_OLD: +#endif { struct v4l2_streamparm *p=arg; printk ("%s: type=%d\n", s, p->type); -- cgit v1.2.3 From 1a96c8458e3bc1a8fd44dd305323a254e7776443 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 18 Jun 2006 19:11:08 +0200 Subject: Add helper functions for control processing to v4l2-common. From: Hans Verkuil Control processing is often duplicated in the various drivers. Unfortunately, simple things like the names of controls are often different between drivers, even though it is the same controls. Adding in the new extended controls and the need for having control helper functions became apparent. Several functions have now been added to v4l2-common to do things like filling the v4l2_queryctrl and v4l2_querymenu structs, to check for valid control input and to move to the next control when enumerating over all controls. Signed-off-by: Hans Verkuil --- linux/drivers/media/video/v4l2-common.c | 507 +++++++++++++++++++++++++++++++- 1 file changed, 506 insertions(+), 1 deletion(-) (limited to 'linux/drivers/media/video/v4l2-common.c') diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index c1697f045..c04216147 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -314,7 +314,10 @@ static const char *v4l2_ioctls[] = { #if 1 /*KEEP*/ [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", #endif - [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS" + [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", + [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", + [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", + [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS" }; #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) @@ -531,6 +534,23 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) printk ("%s: id=%d, value=%d\n", s, p->id, p->value); break; } + case VIDIOC_G_EXT_CTRLS: + case VIDIOC_S_EXT_CTRLS: + case VIDIOC_TRY_EXT_CTRLS: + { + struct v4l2_ext_controls *p = arg; + int i; + + printk("%s: ctrl_class=%d, count=%d\n", s, p->ctrl_class, p->count); + for (i = 0; i < p->count; i++) { + struct v4l2_ext_control *c = &p->controls[i]; + if (cmd == VIDIOC_G_EXT_CTRLS) + printk("%s: id=%d\n", s, c->id); + else + printk("%s: id=%d, value=%d\n", s, c->id, c->value); + } + break; + } case VIDIOC_G_CROP: case VIDIOC_S_CROP: { @@ -966,6 +986,484 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) /* ----------------------------------------------------------------- */ +/* Helper functions for control handling */ + +/* Check for correctness of the ctrl's value based on the data from + struct v4l2_queryctrl and the available menu items. Note that + menu_items may be NULL, in that case it is ignored. */ +int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl, + const char **menu_items) +{ + if (qctrl->flags & V4L2_CTRL_FLAG_DISABLED) + return -EINVAL; + if (qctrl->flags & V4L2_CTRL_FLAG_GRABBED) + return -EBUSY; + if (qctrl->type == V4L2_CTRL_TYPE_BUTTON || + qctrl->type == V4L2_CTRL_TYPE_INTEGER64 || + qctrl->type == V4L2_CTRL_TYPE_CTRL_CLASS) + return 0; + if (ctrl->value < qctrl->minimum || ctrl->value > qctrl->maximum) + return -ERANGE; + if (qctrl->type == V4L2_CTRL_TYPE_MENU && menu_items != NULL) { + if (menu_items[ctrl->value] == NULL || + menu_items[ctrl->value][0] == '\0') + return -EINVAL; + } + return 0; +} + +/* Returns NULL or a character pointer array containing the menu for + the given control ID. The pointer array ends with a NULL pointer. + An empty string signifies a menu entry that is invalid. This allows + drivers to disable certain options if it is not supported. */ +const char **v4l2_ctrl_get_menu(u32 id) +{ + static const char *mpeg_audio_sampling_freq[] = { + "44.1 kHz", + "48 kHz", + "32 kHz", + NULL + }; + static const char *mpeg_audio_encoding[] = { + "Layer I", + "Layer II", + "Layer III", + NULL + }; + static const char *mpeg_audio_l1_bitrate[] = { + "32 kbps", + "64 kbps", + "96 kbps", + "128 kbps", + "160 kbps", + "192 kbps", + "224 kbps", + "256 kbps", + "288 kbps", + "320 kbps", + "352 kbps", + "384 kbps", + "416 kbps", + "448 kbps", + NULL + }; + static const char *mpeg_audio_l2_bitrate[] = { + "32 kbps", + "48 kbps", + "56 kbps", + "64 kbps", + "80 kbps", + "96 kbps", + "112 kbps", + "128 kbps", + "160 kbps", + "192 kbps", + "224 kbps", + "256 kbps", + "320 kbps", + "384 kbps", + NULL + }; + static const char *mpeg_audio_l3_bitrate[] = { + "32 kbps", + "40 kbps", + "48 kbps", + "56 kbps", + "64 kbps", + "80 kbps", + "96 kbps", + "112 kbps", + "128 kbps", + "160 kbps", + "192 kbps", + "224 kbps", + "256 kbps", + "320 kbps", + NULL + }; + static const char *mpeg_audio_mode[] = { + "Stereo", + "Joint Stereo", + "Dual", + "Mono", + NULL + }; + static const char *mpeg_audio_mode_extension[] = { + "Bound 4", + "Bound 8", + "Bound 12", + "Bound 16", + NULL + }; + static const char *mpeg_audio_emphasis[] = { + "No Emphasis", + "50/15 us", + "CCITT J17", + NULL + }; + static const char *mpeg_audio_crc[] = { + "No CRC", + "16-bit CRC", + NULL + }; + static const char *mpeg_video_encoding[] = { + "MPEG-1", + "MPEG-2", + NULL + }; + static const char *mpeg_video_aspect[] = { + "1x1", + "4x3", + "16x9", + "2.21x1", + NULL + }; + static const char *mpeg_video_bitrate_mode[] = { + "Variable Bitrate", + "Constant Bitrate", + NULL + }; + static const char *mpeg_stream_type[] = { + "MPEG-2 Program Stream", + "MPEG-2 Transport Stream", + "MPEG-1 System Stream", + "MPEG-2 DVD-compatible Stream", + "MPEG-1 VCD-compatible Stream", + "MPEG-2 SVCD-compatible Stream", + NULL + }; + + switch (id) { + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: + return mpeg_audio_sampling_freq; + case V4L2_CID_MPEG_AUDIO_ENCODING: + return mpeg_audio_encoding; + case V4L2_CID_MPEG_AUDIO_L1_BITRATE: + return mpeg_audio_l1_bitrate; + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: + return mpeg_audio_l2_bitrate; + case V4L2_CID_MPEG_AUDIO_L3_BITRATE: + return mpeg_audio_l3_bitrate; + case V4L2_CID_MPEG_AUDIO_MODE: + return mpeg_audio_mode; + case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: + return mpeg_audio_mode_extension; + case V4L2_CID_MPEG_AUDIO_EMPHASIS: + return mpeg_audio_emphasis; + case V4L2_CID_MPEG_AUDIO_CRC: + return mpeg_audio_crc; + case V4L2_CID_MPEG_VIDEO_ENCODING: + return mpeg_video_encoding; + case V4L2_CID_MPEG_VIDEO_ASPECT: + return mpeg_video_aspect; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + return mpeg_video_bitrate_mode; + case V4L2_CID_MPEG_STREAM_TYPE: + return mpeg_stream_type; + default: + return NULL; + } +} + +/* 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; + + qctrl->flags = 0; + switch (qctrl->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; + + /* 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 Layer"; 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_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_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_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; + + default: + return -EINVAL; + } + switch (qctrl->id) { + case V4L2_CID_AUDIO_MUTE: + case V4L2_CID_AUDIO_LOUDNESS: + case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: + case V4L2_CID_MPEG_VIDEO_PULLDOWN: + qctrl->type = V4L2_CTRL_TYPE_BOOLEAN; + min = 0; + max = step = 1; + break; + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: + case V4L2_CID_MPEG_AUDIO_ENCODING: + case V4L2_CID_MPEG_AUDIO_L1_BITRATE: + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: + case V4L2_CID_MPEG_AUDIO_L3_BITRATE: + case V4L2_CID_MPEG_AUDIO_MODE: + case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: + case V4L2_CID_MPEG_AUDIO_EMPHASIS: + case V4L2_CID_MPEG_AUDIO_CRC: + case V4L2_CID_MPEG_VIDEO_ENCODING: + case V4L2_CID_MPEG_VIDEO_ASPECT: + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + case V4L2_CID_MPEG_STREAM_TYPE: + qctrl->type = V4L2_CTRL_TYPE_MENU; + step = 1; + break; + case V4L2_CID_USER_CLASS: + case V4L2_CID_MPEG_CLASS: + qctrl->type = V4L2_CTRL_TYPE_CTRL_CLASS; + qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; + min = max = step = def = 0; + break; + default: + qctrl->type = V4L2_CTRL_TYPE_INTEGER; + break; + } + switch (qctrl->id) { + case V4L2_CID_MPEG_AUDIO_ENCODING: + case V4L2_CID_MPEG_AUDIO_MODE: + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + case V4L2_CID_MPEG_VIDEO_B_FRAMES: + case V4L2_CID_MPEG_STREAM_TYPE: + qctrl->flags |= V4L2_CTRL_FLAG_UPDATE; + break; + case V4L2_CID_AUDIO_VOLUME: + case V4L2_CID_AUDIO_BALANCE: + case V4L2_CID_AUDIO_BASS: + case V4L2_CID_AUDIO_TREBLE: + case V4L2_CID_BRIGHTNESS: + case V4L2_CID_CONTRAST: + case V4L2_CID_SATURATION: + case V4L2_CID_HUE: + qctrl->flags |= V4L2_CTRL_FLAG_SLIDER; + break; + } + qctrl->minimum = min; + qctrl->maximum = max; + qctrl->step = step; + qctrl->default_value = def; + qctrl->reserved[0] = qctrl->reserved[1] = 0; + snprintf(qctrl->name, sizeof(qctrl->name), name); + return 0; +} + +/* Fill in a struct v4l2_queryctrl with standard values based on + the control ID. */ +int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl) +{ + switch (qctrl->id) { + /* USER controls */ + case V4L2_CID_USER_CLASS: + case V4L2_CID_MPEG_CLASS: + return v4l2_ctrl_query_fill(qctrl, 0, 0, 0, 0); + case V4L2_CID_AUDIO_VOLUME: + return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 58880); + case V4L2_CID_AUDIO_MUTE: + case V4L2_CID_AUDIO_LOUDNESS: + return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); + case V4L2_CID_AUDIO_BALANCE: + case V4L2_CID_AUDIO_BASS: + case V4L2_CID_AUDIO_TREBLE: + return v4l2_ctrl_query_fill(qctrl, 0, 65535, 65535 / 100, 32768); + case V4L2_CID_BRIGHTNESS: + return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 128); + case V4L2_CID_CONTRAST: + case V4L2_CID_SATURATION: + return v4l2_ctrl_query_fill(qctrl, 0, 127, 1, 64); + case V4L2_CID_HUE: + return v4l2_ctrl_query_fill(qctrl, -128, 127, 1, 0); + + /* MPEG controls */ + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, 1, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); + case V4L2_CID_MPEG_AUDIO_ENCODING: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_ENCODING_LAYER_1, + V4L2_MPEG_AUDIO_ENCODING_LAYER_3, 1, + V4L2_MPEG_AUDIO_ENCODING_LAYER_2); + case V4L2_CID_MPEG_AUDIO_L1_BITRATE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_L1_BITRATE_32K, + V4L2_MPEG_AUDIO_L1_BITRATE_448K, 1, + V4L2_MPEG_AUDIO_L1_BITRATE_256K); + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_L2_BITRATE_32K, + V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1, + V4L2_MPEG_AUDIO_L2_BITRATE_224K); + case V4L2_CID_MPEG_AUDIO_L3_BITRATE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_L3_BITRATE_32K, + V4L2_MPEG_AUDIO_L3_BITRATE_320K, 1, + V4L2_MPEG_AUDIO_L3_BITRATE_192K); + case V4L2_CID_MPEG_AUDIO_MODE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_MODE_STEREO, + V4L2_MPEG_AUDIO_MODE_MONO, 1, + V4L2_MPEG_AUDIO_MODE_STEREO); + case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, 1, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4); + case V4L2_CID_MPEG_AUDIO_EMPHASIS: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_EMPHASIS_NONE, + V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, 1, + V4L2_MPEG_AUDIO_EMPHASIS_NONE); + case V4L2_CID_MPEG_AUDIO_CRC: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_CRC_NONE, + V4L2_MPEG_AUDIO_CRC_CRC16, 1, + V4L2_MPEG_AUDIO_CRC_NONE); + case V4L2_CID_MPEG_VIDEO_ENCODING: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_VIDEO_ENCODING_MPEG_1, + V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1, + V4L2_MPEG_VIDEO_ENCODING_MPEG_2); + case V4L2_CID_MPEG_VIDEO_ASPECT: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_VIDEO_ASPECT_1x1, + V4L2_MPEG_VIDEO_ASPECT_221x100, 1, + V4L2_MPEG_VIDEO_ASPECT_4x3); + case V4L2_CID_MPEG_VIDEO_B_FRAMES: + return v4l2_ctrl_query_fill(qctrl, 0, 33, 1, 2); + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: + return v4l2_ctrl_query_fill(qctrl, 1, 34, 1, 12); + case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE: + return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 1); + case V4L2_CID_MPEG_VIDEO_PULLDOWN: + return v4l2_ctrl_query_fill(qctrl, 0, 1, 1, 0); + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, + V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1, + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); + case V4L2_CID_MPEG_VIDEO_BITRATE: + return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000); + case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: + return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000); + case V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION: + return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); + case V4L2_CID_MPEG_STREAM_TYPE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_STREAM_TYPE_MPEG2_PS, + V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, 1, + V4L2_MPEG_STREAM_TYPE_MPEG2_PS); + case V4L2_CID_MPEG_STREAM_PID_PMT: + return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16); + case V4L2_CID_MPEG_STREAM_PID_AUDIO: + return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260); + case V4L2_CID_MPEG_STREAM_PID_VIDEO: + return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256); + case V4L2_CID_MPEG_STREAM_PID_PCR: + return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259); + case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: + return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); + case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: + return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); + default: + return -EINVAL; + } +} + +/* Fill in a struct v4l2_querymenu based on the struct v4l2_queryctrl and + the menu. The qctrl pointer may be NULL, in which case it is ignored. */ +int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu, struct v4l2_queryctrl *qctrl, + const char **menu_items) +{ + int i; + + if (menu_items == NULL || + (qctrl && (qmenu->index < qctrl->minimum || qmenu->index > qctrl->maximum))) + return -EINVAL; + for (i = 0; i < qmenu->index && menu_items[i]; i++) ; + if (menu_items[i] == NULL || menu_items[i][0] == '\0') + return -EINVAL; + snprintf(qmenu->name, sizeof(qmenu->name), menu_items[qmenu->index]); + qmenu->reserved = 0; + return 0; +} + +/* ctrl_classes points to an array of u32 pointers, the last element is + a NULL pointer. Each u32 array is a 0-terminated array of control IDs. + Each array must be sorted low to high and belong to the same control + class. The array of u32 pointer must also be sorted, from low class IDs + to high class IDs. + + This function returns the first ID that follows after the given ID. + When no more controls are available 0 is returned. */ +u32 v4l2_ctrl_next(const u32 * const * ctrl_classes, u32 id) +{ + u32 ctrl_class; + const u32 *pctrl; + + /* if no query is desired, then just return the control ID */ + if ((id & V4L2_CTRL_FLAG_NEXT_CTRL) == 0) + return id; + if (ctrl_classes == NULL) + return 0; + id &= V4L2_CTRL_ID_MASK; + ctrl_class = V4L2_CTRL_ID2CLASS(id); + id++; /* select next control */ + /* find first class that matches (or is greater than) the class of + the ID */ + while (*ctrl_classes && V4L2_CTRL_ID2CLASS(**ctrl_classes) < ctrl_class) + ctrl_classes++; + /* no more classes */ + if (*ctrl_classes == NULL) + return 0; + pctrl = *ctrl_classes; + /* find first ctrl within the class that is >= ID */ + while (*pctrl && *pctrl < id) pctrl++; + if (*pctrl) + return *pctrl; + /* we are at the end of the controls of the current class. */ + /* continue with next class if available */ + ctrl_classes++; + if (*ctrl_classes == NULL) + return 0; + return **ctrl_classes; +} + +/* ----------------------------------------------------------------- */ + EXPORT_SYMBOL(v4l2_video_std_construct); EXPORT_SYMBOL(v4l2_prio_init); @@ -980,6 +1478,13 @@ EXPORT_SYMBOL(v4l2_type_names); EXPORT_SYMBOL(v4l_printk_ioctl); EXPORT_SYMBOL(v4l_printk_ioctl_arg); +EXPORT_SYMBOL(v4l2_ctrl_next); +EXPORT_SYMBOL(v4l2_ctrl_check); +EXPORT_SYMBOL(v4l2_ctrl_get_menu); +EXPORT_SYMBOL(v4l2_ctrl_query_menu); +EXPORT_SYMBOL(v4l2_ctrl_query_fill); +EXPORT_SYMBOL(v4l2_ctrl_query_fill_std); + /* * Local variables: * c-basic-offset: 8 -- cgit v1.2.3 From 0bd0aae26b024aaa9e5882814b9ad2dd92ea6e03 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 23 Jun 2006 07:05:22 -0300 Subject: fix userbits debug prints From: Mauro Carvalho Chehab Previously, it were showing the pointer value, instead of the setted bits. Signed-off-by: Mauro Carvalho Chehab --- linux/drivers/media/video/v4l2-common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'linux/drivers/media/video/v4l2-common.c') diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index c1697f045..c701982cf 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -506,9 +506,9 @@ void v4l_printk_ioctl_arg(char *s,unsigned int cmd, void *arg) prt_names(p->memory,v4l2_memory_names), p->m.userptr); printk ("%s: timecode= %02d:%02d:%02d type=%d, " - "flags=0x%08x, frames=%d, userbits=0x%p\n", + "flags=0x%08x, frames=%d, userbits=0x%08x\n", s,tc->hours,tc->minutes,tc->seconds, - tc->type, tc->flags, tc->frames, tc->userbits); + tc->type, tc->flags, tc->frames, *(__u32 *) tc->userbits); break; } case VIDIOC_QUERYCAP: -- cgit v1.2.3 From ab9eca654d43314813593d7ea057ccad4342d932 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 24 Jun 2006 19:36:02 +0200 Subject: Add V4L2_CID_MPEG_STREAM_VBI_FMT control From: Hans Verkuil V4L2_CID_MPEG_STREAM_VBI_FMT controls if and how VBI data is embedded in an MPEG stream. Currently only one format is supported: the format designed for the ivtv driver. This should be extended with new standard formats (such as defined for DVB) in the future. Signed-off-by: Hans Verkuil --- linux/drivers/media/video/v4l2-common.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'linux/drivers/media/video/v4l2-common.c') diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index f722ab390..40fea5a05 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -1132,6 +1132,11 @@ const char **v4l2_ctrl_get_menu(u32 id) "MPEG-2 SVCD-compatible Stream", NULL }; + static const char *mpeg_stream_vbi_fmt[] = { + "No VBI", + "VBI in private packets, IVTV format", + NULL + }; switch (id) { case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: @@ -1160,6 +1165,8 @@ const char **v4l2_ctrl_get_menu(u32 id) return mpeg_video_bitrate_mode; case V4L2_CID_MPEG_STREAM_TYPE: return mpeg_stream_type; + case V4L2_CID_MPEG_STREAM_VBI_FMT: + return mpeg_stream_vbi_fmt; default: return NULL; } @@ -1213,6 +1220,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste 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; default: return -EINVAL; @@ -1239,6 +1247,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_MPEG_VIDEO_ASPECT: case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: case V4L2_CID_MPEG_STREAM_TYPE: + case V4L2_CID_MPEG_STREAM_VBI_FMT: qctrl->type = V4L2_CTRL_TYPE_MENU; step = 1; break; @@ -1398,6 +1407,11 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl) return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0); + case V4L2_CID_MPEG_STREAM_VBI_FMT: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_STREAM_VBI_FMT_NONE, + V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1, + V4L2_MPEG_STREAM_VBI_FMT_NONE); default: return -EINVAL; } -- cgit v1.2.3 From 88ffa13fe0812fd9e8154bd42e201442e6c50e03 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sun, 25 Jun 2006 16:18:54 +0200 Subject: IVTV VBI format description too long. From: Hans Verkuil Format description was cut off. It's been shortened. Signed-off-by: Hans Verkuil --- linux/drivers/media/video/v4l2-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'linux/drivers/media/video/v4l2-common.c') diff --git a/linux/drivers/media/video/v4l2-common.c b/linux/drivers/media/video/v4l2-common.c index 40fea5a05..96c778596 100644 --- a/linux/drivers/media/video/v4l2-common.c +++ b/linux/drivers/media/video/v4l2-common.c @@ -1134,7 +1134,7 @@ const char **v4l2_ctrl_get_menu(u32 id) }; static const char *mpeg_stream_vbi_fmt[] = { "No VBI", - "VBI in private packets, IVTV format", + "Private packet, IVTV format", NULL }; -- cgit v1.2.3