libavcodec/options.c File Reference

Options definition for AVCodecContext. More...

#include "avcodec.h"
#include "opt.h"
#include <float.h>

Go to the source code of this file.

Defines
#define	OFFSET(x)   offsetof(AVCodecContext,x)
#define	DEFAULT   0
#define	V   AV_OPT_FLAG_VIDEO_PARAM
#define	A   AV_OPT_FLAG_AUDIO_PARAM
#define	S   AV_OPT_FLAG_SUBTITLE_PARAM
#define	E   AV_OPT_FLAG_ENCODING_PARAM
#define	D   AV_OPT_FLAG_DECODING_PARAM
#define	AV_CODEC_DEFAULT_BITRATE   200*1000
Functions
static const char *	context_to_name (void *ptr)
void	avcodec_get_context_defaults2 (AVCodecContext *s, enum CodecType codec_type)
	THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!
AVCodecContext *	avcodec_alloc_context2 (enum CodecType codec_type)
	THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!
void	avcodec_get_context_defaults (AVCodecContext *s)
	Sets the fields of the given AVCodecContext to default values.
AVCodecContext *	avcodec_alloc_context (void)
	Allocates an AVCodecContext and sets its fields to default values.
Variables
static const AVOption	options []
static const AVClass	av_codec_context_class = { "AVCodecContext", context_to_name, options }

---

Detailed Description

Options definition for AVCodecContext.

Definition in file options.c.

---

Define Documentation

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 44 of file options.c.

Referenced by av_random_generate_untempered_numbers(), find_and_decode_index(), gmc1_c(), h263_pred_motion(), horizX1Filter(), idct(), initFilter(), pred_16x8_motion(), pred_8x16_motion(), pred_motion(), predictor_decode_mono(), put_no_rnd_h264_chroma_mc8_c(), rv30_decode_intra_types(), rv34_pred_mv(), rv34_pred_mv_b(), rv34_pred_mv_rv3(), rv40_decode_intra_types(), vc1_pred_b_mv(), vc1_pred_mv(), wmv2_pred_motion(), wv_unpack_mono(), and wv_unpack_stereo().

#define AV_CODEC_DEFAULT_BITRATE   200*1000

Definition at line 49 of file options.c.

#define D   AV_OPT_FLAG_DECODING_PARAM

Definition at line 47 of file options.c.

Referenced by gmc1_c(), horizX1Filter(), idct(), and put_no_rnd_h264_chroma_mc8_c().

#define DEFAULT   0

Definition at line 41 of file options.c.

#define E   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 46 of file options.c.

Referenced by idct().

#define OFFSET

(

x

)

offsetof(AVCodecContext,x)

Definition at line 40 of file options.c.

#define S   AV_OPT_FLAG_SUBTITLE_PARAM

Definition at line 45 of file options.c.

Referenced by dering_altivec(), fdct_row_mmx(), fdct_row_mmx2(), and wv_unpack_mono().

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 43 of file options.c.

Referenced by altivec_uyvy_rgb32(), altivec_yuv2packedX(), decode_frame(), nsv_parse_NSVf_header(), pred16x16_plane_compat_c(), pred8x8_plane_c(), rgb24toyv12_TMPL(), rv34_mc(), rv34_output_macroblock(), tm2_decode_blocks(), tm2_hi_res_block(), tm2_low_res_block(), tm2_med_res_block(), tm2_motion_block(), tm2_null_res_block(), tm2_still_block(), tm2_update_block(), and vp6_adjust().

---

Function Documentation

AVCodecContext* avcodec_alloc_context

(

void

)

Allocates an AVCodecContext and sets its fields to default values.

The resulting struct can be deallocated by simply calling av_free().

Returns:

An AVCodecContext filled with default values or NULL on failure.

See also:

avcodec_get_context_defaults

Definition at line 453 of file options.c.

Referenced by add_av_stream1(), add_codec(), audio_decode_example(), audio_encode_example(), av_new_stream(), estimate_best_b_count(), main(), read_ffserver_streams(), rtp_new_av_stream(), video_decode_example(), and video_encode_example().

AVCodecContext* avcodec_alloc_context2

(

enum CodecType

codec_type

)

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

Definition at line 439 of file options.c.

Referenced by avcodec_alloc_context(), and main().

void avcodec_get_context_defaults

(

AVCodecContext *

s

)

Sets the fields of the given AVCodecContext to default values.

Parameters:

s

The AVCodecContext of which the fields should be set to default values.

Definition at line 449 of file options.c.

Referenced by parse_ffconfig().

void avcodec_get_context_defaults2	(	AVCodecContext *	s,
		enum CodecType	codec_type
	)

THIS FUNCTION IS NOT YET PART OF THE PUBLIC API! we WILL change its arguments and name a few times!

Definition at line 411 of file options.c.

Referenced by avcodec_alloc_context2(), avcodec_get_context_defaults(), new_audio_stream(), new_subtitle_stream(), and new_video_stream().

static const char* context_to_name

(

void *

ptr

)

[static]

Definition at line 31 of file options.c.

---

Variable Documentation

const AVClass av_codec_context_class = { "AVCodecContext", context_to_name, options } [static]

Definition at line 409 of file options.c.

const AVOption options[] [static]

Definition at line 51 of file options.c.