From 4fa64dae8c55ea9d3be4eb5f23ad0c9a60fa6d95 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Mon, 4 Jul 2011 13:25:50 -0300 Subject: [PATCH] [media] v4l: add fourcc definitions for compressed formats Add fourcc definitions and documentation for the following compressed formats: H264, H264 without start codes, MPEG1/2/4 ES, XVID, VC1 Annex G and Annex L compliant. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/controls.xml | 7 ++- Documentation/DocBook/media/v4l/pixfmt.xml | 47 +++++++++++++++++++- include/linux/videodev2.h | 17 +++++-- 3 files changed, 64 insertions(+), 7 deletions(-) diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index dfed3a8d18a8..e2046754e871 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -678,7 +678,8 @@ caption of a Tab page in a GUI, for example. The MPEG-1, -2 or -4 output stream type. One cannot assume anything here. Each hardware MPEG encoder tends to support different subsets of the available MPEG -stream types. The currently defined stream types are: +stream types. This control is specific to multiplexed MPEG streams. +The currently defined stream types are: @@ -808,6 +809,7 @@ frequency. Possible values are: V4L2_CID_MPEG_AUDIO_ENCODING  enum v4l2_mpeg_audio_encoding MPEG Audio encoding. +This control is specific to multiplexed MPEG streams. Possible values are: @@ -1258,7 +1260,8 @@ and reproducible audio bitstream. 0 = unmuted, 1 = muted. V4L2_CID_MPEG_VIDEO_ENCODING  enum v4l2_mpeg_video_encoding MPEG Video encoding -method. Possible values are: +method. This control is specific to multiplexed MPEG streams. +Possible values are: diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index 389432d780a7..2ff6b7776d7f 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -741,10 +741,55 @@ information. V4L2_PIX_FMT_MPEG 'MPEG' - MPEG stream. The actual format is determined by + MPEG multiplexed stream. The actual format is determined by extended control V4L2_CID_MPEG_STREAM_TYPE, see . + + V4L2_PIX_FMT_H264 + 'H264' + H264 video elementary stream with start codes. + + + V4L2_PIX_FMT_H264_NO_SC + 'AVC1' + H264 video elementary stream without start codes. + + + V4L2_PIX_FMT_H263 + 'H263' + H263 video elementary stream. + + + V4L2_PIX_FMT_MPEG1 + 'MPG1' + MPEG1 video elementary stream. + + + V4L2_PIX_FMT_MPEG2 + 'MPG2' + MPEG2 video elementary stream. + + + V4L2_PIX_FMT_MPEG4 + 'MPG4' + MPEG4 video elementary stream. + + + V4L2_PIX_FMT_XVID + 'XVID' + Xvid video elementary stream. + + + V4L2_PIX_FMT_VC1_ANNEX_G + 'VC1G' + VC1, SMPTE 421M Annex G compliant stream. + + + V4L2_PIX_FMT_VC1_ANNEX_L + 'VC1L' + VC1, SMPTE 421M Annex L compliant stream. + diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 8b1224c1c536..cb22a2c7a467 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -376,7 +376,16 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */ #define V4L2_PIX_FMT_JPEG v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */ #define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */ -#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 */ +#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */ +#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */ +#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */ +#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */ +#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ +#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */ +#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 ES */ +#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */ +#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */ +#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */ /* Vendor-specific formats */ #define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */ @@ -1154,7 +1163,7 @@ enum v4l2_colorfx { #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) #define V4L2_CID_MPEG_CLASS (V4L2_CTRL_CLASS_MPEG | 1) -/* MPEG streams */ +/* MPEG streams, specific to multiplexed streams */ #define V4L2_CID_MPEG_STREAM_TYPE (V4L2_CID_MPEG_BASE+0) enum v4l2_mpeg_stream_type { V4L2_MPEG_STREAM_TYPE_MPEG2_PS = 0, /* MPEG-2 program stream */ @@ -1176,7 +1185,7 @@ enum v4l2_mpeg_stream_vbi_fmt { V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1, /* VBI in private packets, IVTV format */ }; -/* MPEG audio */ +/* MPEG audio controls specific to multiplexed streams */ #define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ (V4L2_CID_MPEG_BASE+100) enum v4l2_mpeg_audio_sampling_freq { V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100 = 0, @@ -1292,7 +1301,7 @@ enum v4l2_mpeg_audio_ac3_bitrate { V4L2_MPEG_AUDIO_AC3_BITRATE_640K = 18, }; -/* MPEG video */ +/* MPEG video controls specific to multiplexed streams */ #define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200) enum v4l2_mpeg_video_encoding { V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0, -- 2.30.2