From 0d82fe801d7c6d8cb8987e66b570f6decde9e235 Mon Sep 17 00:00:00 2001 From: Andy Walls Date: Thu, 1 Jan 2009 19:02:31 -0300 Subject: V4L/DVB (10276): cx18, cx2341x, ivtv: Add AC-3 audio encoding control to cx18 Initial addition of controls to set AC-3 audio encoding for the CX23418 - it does not work yet due to firmware or cx18 driver issues. This change affects the common cx2341x and ivtv modules due to shared structures and common functions. Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx2341x.c | 73 +++++++++++++++++++++++++++++++++++++++---- 1 file changed, 67 insertions(+), 6 deletions(-) (limited to 'drivers/media/video/cx2341x.c') diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c index cbbe47f..0acfacf 100644 --- a/drivers/media/video/cx2341x.c +++ b/drivers/media/video/cx2341x.c @@ -1,5 +1,5 @@ /* - * cx2341x - generic code for cx23415/6 based devices + * cx2341x - generic code for cx23415/6/8 based devices * * Copyright (C) 2006 Hans Verkuil * @@ -30,7 +30,7 @@ #include #include -MODULE_DESCRIPTION("cx23415/6 driver"); +MODULE_DESCRIPTION("cx23415/6/8 driver"); MODULE_AUTHOR("Hans Verkuil"); MODULE_LICENSE("GPL"); @@ -45,6 +45,7 @@ const u32 cx2341x_mpeg_ctrls[] = { V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ, V4L2_CID_MPEG_AUDIO_ENCODING, V4L2_CID_MPEG_AUDIO_L2_BITRATE, + V4L2_CID_MPEG_AUDIO_AC3_BITRATE, V4L2_CID_MPEG_AUDIO_MODE, V4L2_CID_MPEG_AUDIO_MODE_EXTENSION, V4L2_CID_MPEG_AUDIO_EMPHASIS, @@ -94,6 +95,7 @@ static const struct cx2341x_mpeg_params default_params = { .audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, .audio_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2, .audio_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_224K, + .audio_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_224K, .audio_mode = V4L2_MPEG_AUDIO_MODE_STEREO, .audio_mode_extension = V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4, .audio_emphasis = V4L2_MPEG_AUDIO_EMPHASIS_NONE, @@ -148,6 +150,9 @@ static int cx2341x_get_ctrl(const struct cx2341x_mpeg_params *params, case V4L2_CID_MPEG_AUDIO_L2_BITRATE: ctrl->value = params->audio_l2_bitrate; break; + case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: + ctrl->value = params->audio_ac3_bitrate; + break; case V4L2_CID_MPEG_AUDIO_MODE: ctrl->value = params->audio_mode; break; @@ -256,6 +261,12 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy, params->audio_sampling_freq = ctrl->value; break; case V4L2_CID_MPEG_AUDIO_ENCODING: + if (busy) + return -EBUSY; + if (params->capabilities & CX2341X_CAP_HAS_AC3 && + ctrl->value != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 && + ctrl->value != V4L2_MPEG_AUDIO_ENCODING_AC3) + return -EINVAL; params->audio_encoding = ctrl->value; break; case V4L2_CID_MPEG_AUDIO_L2_BITRATE: @@ -263,6 +274,11 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params, int busy, return -EBUSY; params->audio_l2_bitrate = ctrl->value; break; + case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: + if (busy) + return -EBUSY; + params->audio_ac3_bitrate = ctrl->value; + break; case V4L2_CID_MPEG_AUDIO_MODE: params->audio_mode = ctrl->value; break; @@ -482,6 +498,12 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params, switch (qctrl->id) { case V4L2_CID_MPEG_AUDIO_ENCODING: + if (params->capabilities & CX2341X_CAP_HAS_AC3) + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_ENCODING_LAYER_2, + V4L2_MPEG_AUDIO_ENCODING_AC3, 1, + default_params.audio_encoding); + return v4l2_ctrl_query_fill(qctrl, V4L2_MPEG_AUDIO_ENCODING_LAYER_2, V4L2_MPEG_AUDIO_ENCODING_LAYER_2, 1, @@ -497,6 +519,12 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params, case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return -EINVAL; + case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: + return v4l2_ctrl_query_fill(qctrl, + V4L2_MPEG_AUDIO_AC3_BITRATE_48K, + V4L2_MPEG_AUDIO_AC3_BITRATE_448K, 1, + default_params.audio_ac3_bitrate); + case V4L2_CID_MPEG_AUDIO_MODE_EXTENSION: err = v4l2_ctrl_query_fill_std(qctrl); if (err == 0 && @@ -671,6 +699,15 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id) NULL }; + static const char *mpeg_audio_encoding_l2_ac3[] = { + "", + "MPEG-1/2 Layer II", + "", + "", + "AC-3", + NULL + }; + static const char *cx2341x_video_spatial_filter_mode_menu[] = { "Manual", "Auto", @@ -711,6 +748,9 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id) case V4L2_CID_MPEG_STREAM_TYPE: return (p->capabilities & CX2341X_CAP_HAS_TS) ? mpeg_stream_type_with_ts : mpeg_stream_type_without_ts; + case V4L2_CID_MPEG_AUDIO_ENCODING: + return (p->capabilities & CX2341X_CAP_HAS_AC3) ? + mpeg_audio_encoding_l2_ac3 : v4l2_ctrl_get_menu(id); case V4L2_CID_MPEG_AUDIO_L1_BITRATE: case V4L2_CID_MPEG_AUDIO_L3_BITRATE: return NULL; @@ -730,16 +770,34 @@ const char **cx2341x_ctrl_get_menu(const struct cx2341x_mpeg_params *p, u32 id) } EXPORT_SYMBOL(cx2341x_ctrl_get_menu); +/* definitions for audio properties bits 29-28 */ +#define CX2341X_AUDIO_ENCDING_METHOD_MPEG 0 +#define CX2341X_AUDIO_ENCDING_METHOD_AC3 1 +#define CX2341X_AUDIO_ENCDING_METHOD_LPCM 2 + static void cx2341x_calc_audio_properties(struct cx2341x_mpeg_params *params) { - params->audio_properties = (params->audio_sampling_freq << 0) | - ((3 - params->audio_encoding) << 2) | - ((1 + params->audio_l2_bitrate) << 4) | + params->audio_properties = + (params->audio_sampling_freq << 0) | (params->audio_mode << 8) | (params->audio_mode_extension << 10) | (((params->audio_emphasis == V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17) ? 3 : params->audio_emphasis) << 12) | (params->audio_crc << 14); + + if ((params->capabilities & CX2341X_CAP_HAS_AC3) && + params->audio_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) { + params->audio_properties |= + /* Not sure if this MPEG Layer II setting is required */ + ((3 - V4L2_MPEG_AUDIO_ENCODING_LAYER_2) << 2) | + (params->audio_ac3_bitrate << 4) | + (CX2341X_AUDIO_ENCDING_METHOD_AC3 << 28); + } else { + /* Assuming MPEG Layer II */ + params->audio_properties |= + ((3 - params->audio_encoding) << 2) | + ((1 + params->audio_l2_bitrate) << 4); + } } int cx2341x_ext_ctrls(struct cx2341x_mpeg_params *params, int busy, @@ -1022,7 +1080,10 @@ void cx2341x_log_status(const struct cx2341x_mpeg_params *p, const char *prefix) prefix, cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ), cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_ENCODING), - cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_L2_BITRATE), + cx2341x_menu_item(p, + p->audio_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3 + ? V4L2_CID_MPEG_AUDIO_AC3_BITRATE + : V4L2_CID_MPEG_AUDIO_L2_BITRATE), cx2341x_menu_item(p, V4L2_CID_MPEG_AUDIO_MODE), p->audio_mute ? " (muted)" : ""); if (p->audio_mode == V4L2_MPEG_AUDIO_MODE_JOINT_STEREO) -- cgit v1.1