libavformat/rtpdec_jpeg.c File Reference

#include "avformat.h"
#include "rtpdec_formats.h"
#include "libavutil/intreadwrite.h"
#include "libavcodec/mjpeg.h"
#include "libavcodec/bytestream.h"

Go to the source code of this file.

Data Structures
struct	PayloadContext
	RTP/JPEG specific private data. More...
Functions
static PayloadContext *	jpeg_new_context (void)
static void	free_frame_if_needed (PayloadContext *jpeg)
static void	jpeg_free_context (PayloadContext *jpeg)
static int	jpeg_create_huffman_table (PutByteContext *p, int table_class, int table_id, const uint8_t *bits_table, const uint8_t *value_table)
static void	jpeg_put_marker (PutByteContext *pbc, int code)
static int	jpeg_create_header (uint8_t *buf, int size, uint32_t type, uint32_t w, uint32_t h, const uint8_t *qtable, int nb_qtable)
static void	create_default_qtables (uint8_t *qtables, uint8_t q)
static int	jpeg_parse_packet (AVFormatContext *ctx, PayloadContext *jpeg, AVStream *st, AVPacket *pkt, uint32_t *timestamp, const uint8_t *buf, int len, int flags)
Variables
static const uint8_t	default_quantizers [128]
RTPDynamicProtocolHandler	ff_jpeg_dynamic_handler

---

Function Documentation

static void create_default_qtables	(	uint8_t *	qtables,
		uint8_t	q
	)			[static]

Definition at line 198 of file rtpdec_jpeg.c.

Referenced by jpeg_parse_packet().

static void free_frame_if_needed

(

PayloadContext *

jpeg

)

[inline, static]

Definition at line 66 of file rtpdec_jpeg.c.

Referenced by jpeg_free_context(), and jpeg_parse_packet().

static int jpeg_create_header	(	uint8_t *	buf,
		int	size,
		uint32_t	type,
		uint32_t	w,
		uint32_t	h,
		const uint8_t *	qtable,
		int	nb_qtable
	)			[static]

Definition at line 107 of file rtpdec_jpeg.c.

Referenced by jpeg_parse_packet().

static int jpeg_create_huffman_table	(	PutByteContext *	p,
		int	table_class,
		int	table_id,
		const uint8_t *	bits_table,
		const uint8_t *	value_table
	)			[static]

Definition at line 82 of file rtpdec_jpeg.c.

Referenced by jpeg_create_header().

static void jpeg_free_context

(

PayloadContext *

jpeg

)

[static]

Definition at line 76 of file rtpdec_jpeg.c.

static PayloadContext* jpeg_new_context

(

void

)

[static]

Definition at line 61 of file rtpdec_jpeg.c.

static int jpeg_parse_packet	(	AVFormatContext *	ctx,
		PayloadContext *	jpeg,
		AVStream *	st,
		AVPacket *	pkt,
		uint32_t *	timestamp,
		const uint8_t *	buf,
		int	len,
		int	flags
	)			[static]

Definition at line 219 of file rtpdec_jpeg.c.

static void jpeg_put_marker	(	PutByteContext *	pbc,
		int	code
	)			[static]

Definition at line 101 of file rtpdec_jpeg.c.

Referenced by jpeg_create_header().

---

Variable Documentation

const uint8_t default_quantizers[128] [static]

Initial value:

 {
    
    16,  11,  12,  14,  12,  10,  16,  14,
    13,  14,  18,  17,  16,  19,  24,  40,
    26,  24,  22,  22,  24,  49,  35,  37,
    29,  40,  58,  51,  61,  60,  57,  51,
    56,  55,  64,  72,  92,  78,  64,  68,
    87,  69,  55,  56,  80,  109, 81,  87,
    95,  98,  103, 104, 103, 62,  77,  113,
    121, 112, 100, 120, 92,  101, 103, 99,

    
    17,  18,  18,  24,  21,  24,  47,  26,
    26,  47,  99,  66,  56,  66,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99,
    99,  99,  99,  99,  99,  99,  99,  99
}

Definition at line 39 of file rtpdec_jpeg.c.

Referenced by create_default_qtables().

RTPDynamicProtocolHandler ff_jpeg_dynamic_handler

Initial value:

 {
    .enc_name          = "JPEG",
    .codec_type        = AVMEDIA_TYPE_VIDEO,
    .codec_id          = AV_CODEC_ID_MJPEG,
    .alloc             = jpeg_new_context,
    .free              = jpeg_free_context,
    .parse_packet      = jpeg_parse_packet,
    .static_payload_id = 26,
}

Definition at line 390 of file rtpdec_jpeg.c.

Referenced by av_register_rtp_dynamic_payload_handlers().