drivers/platform/raspberrypi/vchiq-mmal/mmal-encodings.h

Source file repositories/reference/linux-study-clean/drivers/platform/raspberrypi/vchiq-mmal/mmal-encodings.h

File Facts

System
Linux kernel
Corpus path
drivers/platform/raspberrypi/vchiq-mmal/mmal-encodings.h
Extension
.h
Size
6113 bytes
Lines
125
Domain
Driver Families
Bucket
drivers/platform
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef MMAL_ENCODINGS_H
#define MMAL_ENCODINGS_H

#define MMAL_ENCODING_H264             MMAL_FOURCC('H', '2', '6', '4')
#define MMAL_ENCODING_H263             MMAL_FOURCC('H', '2', '6', '3')
#define MMAL_ENCODING_MP4V             MMAL_FOURCC('M', 'P', '4', 'V')
#define MMAL_ENCODING_MP2V             MMAL_FOURCC('M', 'P', '2', 'V')
#define MMAL_ENCODING_MP1V             MMAL_FOURCC('M', 'P', '1', 'V')
#define MMAL_ENCODING_WMV3             MMAL_FOURCC('W', 'M', 'V', '3')
#define MMAL_ENCODING_WMV2             MMAL_FOURCC('W', 'M', 'V', '2')
#define MMAL_ENCODING_WMV1             MMAL_FOURCC('W', 'M', 'V', '1')
#define MMAL_ENCODING_WVC1             MMAL_FOURCC('W', 'V', 'C', '1')
#define MMAL_ENCODING_VP8              MMAL_FOURCC('V', 'P', '8', ' ')
#define MMAL_ENCODING_VP7              MMAL_FOURCC('V', 'P', '7', ' ')
#define MMAL_ENCODING_VP6              MMAL_FOURCC('V', 'P', '6', ' ')
#define MMAL_ENCODING_THEORA           MMAL_FOURCC('T', 'H', 'E', 'O')
#define MMAL_ENCODING_SPARK            MMAL_FOURCC('S', 'P', 'R', 'K')
#define MMAL_ENCODING_MJPEG            MMAL_FOURCC('M', 'J', 'P', 'G')

#define MMAL_ENCODING_JPEG             MMAL_FOURCC('J', 'P', 'E', 'G')
#define MMAL_ENCODING_GIF              MMAL_FOURCC('G', 'I', 'F', ' ')
#define MMAL_ENCODING_PNG              MMAL_FOURCC('P', 'N', 'G', ' ')
#define MMAL_ENCODING_PPM              MMAL_FOURCC('P', 'P', 'M', ' ')
#define MMAL_ENCODING_TGA              MMAL_FOURCC('T', 'G', 'A', ' ')
#define MMAL_ENCODING_BMP              MMAL_FOURCC('B', 'M', 'P', ' ')

#define MMAL_ENCODING_I420             MMAL_FOURCC('I', '4', '2', '0')
#define MMAL_ENCODING_I420_SLICE       MMAL_FOURCC('S', '4', '2', '0')
#define MMAL_ENCODING_YV12             MMAL_FOURCC('Y', 'V', '1', '2')
#define MMAL_ENCODING_I422             MMAL_FOURCC('I', '4', '2', '2')
#define MMAL_ENCODING_I422_SLICE       MMAL_FOURCC('S', '4', '2', '2')
#define MMAL_ENCODING_YUYV             MMAL_FOURCC('Y', 'U', 'Y', 'V')
#define MMAL_ENCODING_YVYU             MMAL_FOURCC('Y', 'V', 'Y', 'U')
#define MMAL_ENCODING_UYVY             MMAL_FOURCC('U', 'Y', 'V', 'Y')
#define MMAL_ENCODING_VYUY             MMAL_FOURCC('V', 'Y', 'U', 'Y')
#define MMAL_ENCODING_NV12             MMAL_FOURCC('N', 'V', '1', '2')
#define MMAL_ENCODING_NV21             MMAL_FOURCC('N', 'V', '2', '1')
#define MMAL_ENCODING_ARGB             MMAL_FOURCC('A', 'R', 'G', 'B')
#define MMAL_ENCODING_RGBA             MMAL_FOURCC('R', 'G', 'B', 'A')
#define MMAL_ENCODING_ABGR             MMAL_FOURCC('A', 'B', 'G', 'R')
#define MMAL_ENCODING_BGRA             MMAL_FOURCC('B', 'G', 'R', 'A')
#define MMAL_ENCODING_RGB16            MMAL_FOURCC('R', 'G', 'B', '2')
#define MMAL_ENCODING_RGB24            MMAL_FOURCC('R', 'G', 'B', '3')
#define MMAL_ENCODING_RGB32            MMAL_FOURCC('R', 'G', 'B', '4')
#define MMAL_ENCODING_BGR16            MMAL_FOURCC('B', 'G', 'R', '2')
#define MMAL_ENCODING_BGR24            MMAL_FOURCC('B', 'G', 'R', '3')
#define MMAL_ENCODING_BGR32            MMAL_FOURCC('B', 'G', 'R', '4')

/** SAND Video (YUVUV128) format, native format understood by VideoCore.
 * This format is *not* opaque - if requested you will receive full frames
 * of YUV_UV video.
 */
#define MMAL_ENCODING_YUVUV128         MMAL_FOURCC('S', 'A', 'N', 'D')

/** VideoCore opaque image format, image handles are returned to
 * the host but not the actual image data.
 */
#define MMAL_ENCODING_OPAQUE           MMAL_FOURCC('O', 'P', 'Q', 'V')

/** An EGL image handle
 */
#define MMAL_ENCODING_EGL_IMAGE        MMAL_FOURCC('E', 'G', 'L', 'I')

/* }@ */

/** \name Pre-defined audio encodings */
/* @{ */
#define MMAL_ENCODING_PCM_UNSIGNED_BE  MMAL_FOURCC('P', 'C', 'M', 'U')
#define MMAL_ENCODING_PCM_UNSIGNED_LE  MMAL_FOURCC('p', 'c', 'm', 'u')
#define MMAL_ENCODING_PCM_SIGNED_BE    MMAL_FOURCC('P', 'C', 'M', 'S')
#define MMAL_ENCODING_PCM_SIGNED_LE    MMAL_FOURCC('p', 'c', 'm', 's')
#define MMAL_ENCODING_PCM_FLOAT_BE     MMAL_FOURCC('P', 'C', 'M', 'F')
#define MMAL_ENCODING_PCM_FLOAT_LE     MMAL_FOURCC('p', 'c', 'm', 'f')

/* Pre-defined H264 encoding variants */

/** ISO 14496-10 Annex B byte stream format */
#define MMAL_ENCODING_VARIANT_H264_DEFAULT   0
/** ISO 14496-15 AVC stream format */
#define MMAL_ENCODING_VARIANT_H264_AVC1      MMAL_FOURCC('A', 'V', 'C', '1')
/** Implicitly delineated NAL units without emulation prevention */
#define MMAL_ENCODING_VARIANT_H264_RAW       MMAL_FOURCC('R', 'A', 'W', ' ')

/** \defgroup MmalColorSpace List of pre-defined video color spaces
 * This defines a list of common color spaces. This list isn't exhaustive and
 * is only provided as a convenience to avoid clients having to use FourCC
 * codes directly. However components are allowed to define and use their own
 * FourCC codes.
 */
/* @{ */

Annotation

Implementation Notes