omx.c File Reference

#include "config.h"
#include <dlfcn.h>
#include <OMX_Core.h>
#include <OMX_Component.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include "libavutil/avstring.h"
#include "libavutil/avutil.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "h264.h"
#include "pthread_internal.h"

Go to the source code of this file.

Data Structures
struct	OMXContext
struct	OMXCodecContext

Macros
#define	to_omx_ticks(x)   (x)
#define	from_omx_ticks(x)   (x)
#define	INIT_STRUCT(x)
#define	CHECK(x)
#define	NB_MUTEX_CONDS   6
#define	OFF(field)   offsetof(OMXCodecContext, field)
#define	OFFSET(x)   offsetof(OMXCodecContext, x)
#define	VDE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define	VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Functions
static av_cold void *	dlsym_prefixed (void *handle, const char *symbol, const char *prefix)
static av_cold int	omx_try_load (OMXContext *s, void *logctx, const char *libname, const char *prefix, const char *libname2)
static av_cold OMXContext *	omx_init (void *logctx, const char *libname, const char *prefix)
static av_cold void	omx_deinit (OMXContext *omx_context)
	DEFINE_OFFSET_ARRAY (OMXCodecContext, omx_codec_context, mutex_cond_inited_cnt,(OFF(input_mutex), OFF(output_mutex), OFF(state_mutex)),(OFF(input_cond), OFF(output_cond), OFF(state_cond)))
static void	append_buffer (pthread_mutex_t *mutex, pthread_cond_t *cond, int *array_size, OMX_BUFFERHEADERTYPE **array, OMX_BUFFERHEADERTYPE *buffer)
static OMX_BUFFERHEADERTYPE *	get_buffer (pthread_mutex_t *mutex, pthread_cond_t *cond, int *array_size, OMX_BUFFERHEADERTYPE **array, int wait)
static OMX_ERRORTYPE	event_handler (OMX_HANDLETYPE component, OMX_PTR app_data, OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2, OMX_PTR event_data)
static OMX_ERRORTYPE	empty_buffer_done (OMX_HANDLETYPE component, OMX_PTR app_data, OMX_BUFFERHEADERTYPE *buffer)
static OMX_ERRORTYPE	fill_buffer_done (OMX_HANDLETYPE component, OMX_PTR app_data, OMX_BUFFERHEADERTYPE *buffer)
static av_cold int	find_component (OMXContext *omx_context, void *logctx, const char *role, char *str, int str_size)
static av_cold int	wait_for_state (OMXCodecContext *s, OMX_STATETYPE state)
static av_cold int	omx_component_init (AVCodecContext *avctx, const char *role)
static av_cold void	cleanup (OMXCodecContext *s)
static av_cold int	omx_encode_init (AVCodecContext *avctx)
static int	omx_encode_frame (AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
static av_cold int	omx_encode_end (AVCodecContext *avctx)

Variables
static const OMX_CALLBACKTYPE	callbacks
static const AVOption	options []
static enum AVPixelFormat	omx_encoder_pix_fmts []
static const AVClass	omx_mpeg4enc_class
const FFCodec	ff_mpeg4_omx_encoder
static const AVClass	omx_h264enc_class
const FFCodec	ff_h264_omx_encoder

Macro Definition Documentation

to_omx_ticks

#define to_omx_ticks

(

x

)

(x)

Definition at line 61 of file omx.c.

from_omx_ticks

#define from_omx_ticks

(

x

)

(x)

Definition at line 62 of file omx.c.

INIT_STRUCT

#define INIT_STRUCT

(

x

)

Value:

        do {                                               \
        x.nSize = sizeof(x);                                              \
        x.nVersion = s->version;                                          \
    } while (0)

Definition at line 65 of file omx.c.

CHECK

#define CHECK

(

x

)

Value:

        do {                                                     \
        if (x != OMX_ErrorNone) {                                         \
            av_log(avctx, AV_LOG_ERROR,                                   \
                   "err %x (%d) on line %d\n", x, x, __LINE__);           \
            return AVERROR_UNKNOWN;                                       \
        }                                                                 \
    } while (0)

Definition at line 69 of file omx.c.

NB_MUTEX_CONDS

#define NB_MUTEX_CONDS   6

Definition at line 233 of file omx.c.

OFF

#define OFF

(

field

)

offsetof(OMXCodecContext, field)

Definition at line 234 of file omx.c.

OFFSET

#define OFFSET

(

x

)

offsetof(OMXCodecContext, x)

Definition at line 916 of file omx.c.

VDE

#define VDE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 917 of file omx.c.

VE

#define VE   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

Definition at line 918 of file omx.c.

Function Documentation

dlsym_prefixed()

static av_cold void* dlsym_prefixed ( void *  handle, const char *  symbol, const char *  prefix  )

static

Definition at line 90 of file omx.c.

Referenced by omx_try_load().

omx_try_load()

static av_cold int omx_try_load ( OMXContext *  s, void *  logctx, const char *  libname, const char *  prefix, const char *  libname2  )

static

Definition at line 97 of file omx.c.

Referenced by omx_init().

omx_init()

static av_cold OMXContext* omx_init ( void *  logctx, const char *  libname, const char *  prefix  )

static

Definition at line 141 of file omx.c.

Referenced by omx_encode_init().

omx_deinit()

static av_cold void omx_deinit ( OMXContext *  omx_context )

static

Definition at line 181 of file omx.c.

Referenced by cleanup().

DEFINE_OFFSET_ARRAY()

DEFINE_OFFSET_ARRAY	(	OMXCodecContext	,
		omx_codec_context	,
		mutex_cond_inited_cnt	,
		(OFF(input_mutex), OFF(output_mutex), OFF(state_mutex))	,
		(OFF(input_cond), OFF(output_cond), OFF(state_cond))
	)

append_buffer()

static void append_buffer ( pthread_mutex_t *  mutex, pthread_cond_t *  cond, int *  array_size, OMX_BUFFERHEADERTYPE **  array, OMX_BUFFERHEADERTYPE *  buffer  )

static

Definition at line 239 of file omx.c.

Referenced by empty_buffer_done(), fill_buffer_done(), omx_encode_frame(), and omx_encode_init().

get_buffer()

static OMX_BUFFERHEADERTYPE* get_buffer ( pthread_mutex_t *  mutex, pthread_cond_t *  cond, int *  array_size, OMX_BUFFERHEADERTYPE **  array, int  wait  )

static

Definition at line 249 of file omx.c.

Referenced by cleanup(), omx_encode_frame(), and omx_encode_init().

event_handler()

static OMX_ERRORTYPE event_handler ( OMX_HANDLETYPE  component, OMX_PTR  app_data, OMX_EVENTTYPE  event, OMX_U32  data1, OMX_U32  data2, OMX_PTR  event_data  )

static

Definition at line 270 of file omx.c.

empty_buffer_done()

static OMX_ERRORTYPE empty_buffer_done ( OMX_HANDLETYPE  component, OMX_PTR  app_data, OMX_BUFFERHEADERTYPE *  buffer  )

static

Definition at line 312 of file omx.c.

fill_buffer_done()

static OMX_ERRORTYPE fill_buffer_done ( OMX_HANDLETYPE  component, OMX_PTR  app_data, OMX_BUFFERHEADERTYPE *  buffer  )

static

Definition at line 330 of file omx.c.

find_component()

static av_cold int find_component ( OMXContext *  omx_context, void *  logctx, const char *  role, char *  str, int  str_size  )

static

Definition at line 345 of file omx.c.

Referenced by omx_encode_init().

wait_for_state()

static av_cold int wait_for_state ( OMXCodecContext *  s, OMX_STATETYPE  state  )

static

Definition at line 382 of file omx.c.

Referenced by cleanup(), and omx_component_init().

omx_component_init()

static av_cold int omx_component_init ( AVCodecContext *  avctx, const char *  role  )

static

Definition at line 394 of file omx.c.

Referenced by omx_encode_init().

cleanup()

static av_cold void cleanup ( OMXCodecContext *  s )

static

Definition at line 597 of file omx.c.

Referenced by omx_encode_end().

omx_encode_init()

static av_cold int omx_encode_init ( AVCodecContext *  avctx )

static

Definition at line 642 of file omx.c.

omx_encode_frame()

static int omx_encode_frame ( AVCodecContext *  avctx, AVPacket *  pkt, const AVFrame *  frame, int *  got_packet  )

static

Definition at line 731 of file omx.c.

omx_encode_end()

static av_cold int omx_encode_end ( AVCodecContext *  avctx )

static

Definition at line 908 of file omx.c.

Variable Documentation

callbacks

const OMX_CALLBACKTYPE callbacks

static

Initial value:

= {
    event_handler,
    empty_buffer_done,
    fill_buffer_done
}

Definition at line 339 of file omx.c.

Referenced by ff_ass_split_override_codes(), ff_vvc_executor_alloc(), and omx_component_init().

options

const AVOption options[]

static

Initial value:

= {
    { "omx_libname", "OpenMAX library name", OFFSET(libname), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VDE },
    { "omx_libprefix", "OpenMAX library prefix", OFFSET(libprefix), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VDE },
    { "zerocopy", "Try to avoid copying input frames if possible", OFFSET(input_zerocopy), AV_OPT_TYPE_INT, { .i64 = CONFIG_OMX_RPI }, 0, 1, VE },
    { "profile",  "Set the encoding profile", OFFSET(profile), AV_OPT_TYPE_INT,   { .i64 = AV_PROFILE_UNKNOWN },       AV_PROFILE_UNKNOWN, AV_PROFILE_H264_HIGH, VE, .unit = "profile" },
    { "baseline", "",                         0,               AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_H264_BASELINE }, 0, 0, VE, .unit = "profile" },
    { "main",     "",                         0,               AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_H264_MAIN },     0, 0, VE, .unit = "profile" },
    { "high",     "",                         0,               AV_OPT_TYPE_CONST, { .i64 = AV_PROFILE_H264_HIGH },     0, 0, VE, .unit = "profile" },
    { NULL }
}

Definition at line 919 of file omx.c.

omx_encoder_pix_fmts

enum AVPixelFormat omx_encoder_pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
}

Definition at line 930 of file omx.c.

omx_mpeg4enc_class

const AVClass omx_mpeg4enc_class

static

Initial value:

= {
    .class_name = "mpeg4_omx",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 934 of file omx.c.

ff_mpeg4_omx_encoder

const FFCodec ff_mpeg4_omx_encoder

Initial value:

= {
    .p.name           = "mpeg4_omx",
    CODEC_LONG_NAME("OpenMAX IL MPEG-4 video encoder"),
    .p.type           = AVMEDIA_TYPE_VIDEO,
    .p.id             = AV_CODEC_ID_MPEG4,
    .priv_data_size   = sizeof(OMXCodecContext),
    .init             = omx_encode_init,
    FF_CODEC_ENCODE_CB(omx_encode_frame),
    .close            = omx_encode_end,
    .p.pix_fmts       = omx_encoder_pix_fmts,
    .p.capabilities   = AV_CODEC_CAP_DELAY,
    .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,
    .p.priv_class     = &omx_mpeg4enc_class,
}

Definition at line 940 of file omx.c.

omx_h264enc_class

const AVClass omx_h264enc_class

static

Initial value:

= {
    .class_name = "h264_omx",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 955 of file omx.c.

ff_h264_omx_encoder

const FFCodec ff_h264_omx_encoder

Initial value:

= {
    .p.name           = "h264_omx",
    CODEC_LONG_NAME("OpenMAX IL H.264 video encoder"),
    .p.type           = AVMEDIA_TYPE_VIDEO,
    .p.id             = AV_CODEC_ID_H264,
    .priv_data_size   = sizeof(OMXCodecContext),
    .init             = omx_encode_init,
    FF_CODEC_ENCODE_CB(omx_encode_frame),
    .close            = omx_encode_end,
    .p.pix_fmts       = omx_encoder_pix_fmts,
    .p.capabilities   = AV_CODEC_CAP_DELAY,
    .caps_internal    = FF_CODEC_CAP_INIT_CLEANUP,
    .p.priv_class     = &omx_h264enc_class,
}

Definition at line 961 of file omx.c.