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V4L/DVB (8634): v4l2: extend MPEG Encoding API with AVC and AAC 

Adds Advanced Audio Coding (AAC) and MPEG-4 Advanced Video Coding
(AVC/H.264) as audio/video codecs to the extended controls API.
Updates cx2341x driver to the new values.

Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Janne Grunau 2008-08-08 07:21:00 -03:00 committed by Mauro Carvalho Chehab
parent a832781cd3
commit 188919ac57
3 changed files with 16 additions and 9 deletions
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5
drivers/media/video/cx2341x.c
View File

@ -508,7 +508,10 @@ int cx2341x_ctrl_query(const struct cx2341x_mpeg_params *params,
/* this setting is read-only for the cx2341x since the
V4L2_CID_MPEG_STREAM_TYPE really determines the
MPEG-1/2 setting */
err = v4l2_ctrl_query_fill_std(qctrl);
err = v4l2_ctrl_query_fill(qctrl,
V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
if (err == 0)
qctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
return err;

14
drivers/media/video/v4l2-common.c
View File

@ -187,9 +187,10 @@ const char **v4l2_ctrl_get_menu(u32 id)
NULL
};
static const char *mpeg_audio_encoding[] = {
"Layer I",
"Layer II",
"Layer III",
"MPEG-1 Layer I",
"MPEG-1 Layer II",
"MPEG-1 Layer III",
"MPEG-4 AAC",
NULL
};
static const char *mpeg_audio_l1_bitrate[] = {
@ -271,6 +272,7 @@ const char **v4l2_ctrl_get_menu(u32 id)
static const char *mpeg_video_encoding[] = {
"MPEG-1",
"MPEG-2",
"MPEG-4 AVC",
NULL
};
static const char *mpeg_video_aspect[] = {
@ -358,7 +360,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
/* 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_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;
@ -493,7 +495,7 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
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_AAC, 1,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2);
case V4L2_CID_MPEG_AUDIO_L1_BITRATE:
return v4l2_ctrl_query_fill(qctrl,
@ -535,7 +537,7 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
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_4_AVC, 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
case V4L2_CID_MPEG_VIDEO_ASPECT:
return v4l2_ctrl_query_fill(qctrl,

6
include/linux/videodev2.h
View File

@ -910,6 +910,7 @@ enum v4l2_mpeg_audio_encoding {
V4L2_MPEG_AUDIO_ENCODING_LAYER_1 = 0,
V4L2_MPEG_AUDIO_ENCODING_LAYER_2 = 1,
V4L2_MPEG_AUDIO_ENCODING_LAYER_3 = 2,
V4L2_MPEG_AUDIO_ENCODING_AAC = 3,
};
#define V4L2_CID_MPEG_AUDIO_L1_BITRATE (V4L2_CID_MPEG_BASE+102)
enum v4l2_mpeg_audio_l1_bitrate {
@ -992,8 +993,9 @@ enum v4l2_mpeg_audio_crc {
/* MPEG video */
#define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200)
enum v4l2_mpeg_video_encoding {
V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0,
V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1,
V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC = 2,
};
#define V4L2_CID_MPEG_VIDEO_ASPECT (V4L2_CID_MPEG_BASE+201)
enum v4l2_mpeg_video_aspect {