mpegvideo_dec.c File Reference

#include <limits.h>
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "internal.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodec.h"
#include "threadframe.h"

Go to the source code of this file.

Macros
#define	UPDATE_PICTURE(pic)
#define	REBASE_PICTURE(pic, new_ctx, old_ctx)

Functions
void	ff_mpv_decode_init (MpegEncContext *s, AVCodecContext *avctx)
	Initialize the given MpegEncContext for decoding. More...
int	ff_mpeg_update_thread_context (AVCodecContext *dst, const AVCodecContext *src)
int	ff_mpv_common_frame_size_change (MpegEncContext *s)
static int	alloc_picture (MpegEncContext *s, Picture *pic)
static void	gray_frame (AVFrame *frame)
int	ff_mpv_frame_start (MpegEncContext *s, AVCodecContext *avctx)
	generic function called after decoding the header and before a frame is decoded. More...
void	ff_mpv_frame_end (MpegEncContext *s)
void	ff_print_debug_info (MpegEncContext *s, Picture *p, AVFrame *pict)
int	ff_mpv_export_qp_table (MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
void	ff_mpeg_draw_horiz_band (MpegEncContext *s, int y, int h)
void	ff_mpeg_flush (AVCodecContext *avctx)
void	ff_mpv_report_decode_progress (MpegEncContext *s)

Macro Definition Documentation

UPDATE_PICTURE

#define UPDATE_PICTURE

(

pic

)

Value:

do {\
    ff_mpeg_unref_picture(s->avctx, &s->pic);\
    if (s1->pic.f && s1->pic.f->buf[0])\
        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
    else\
        ret = ff_update_picture_tables(&s->pic, &s1->pic);\
    if (ret < 0)\
        return ret;\
} while (0)

REBASE_PICTURE

#define REBASE_PICTURE	(		pic,
			new_ctx,
			old_ctx
	)

Value:

    ((pic && pic >= old_ctx->picture &&                                       \
      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
        &new_ctx->picture[pic - old_ctx->picture] : NULL)

Function Documentation

ff_mpv_decode_init()

void ff_mpv_decode_init	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

Initialize the given MpegEncContext for decoding.

the changed fields will not depend upon the prior state of the MpegEncContext.

Definition at line 37 of file mpegvideo_dec.c.

Referenced by ff_h263_decode_init(), ff_rv34_decode_init(), h261_decode_init(), ipu_decode_init(), mpeg_decode_init(), and rv10_decode_init().

ff_mpeg_update_thread_context()

int ff_mpeg_update_thread_context	(	AVCodecContext *	dst,
		const AVCodecContext *	src
	)

Definition at line 51 of file mpegvideo_dec.c.

Referenced by ff_rv34_decode_update_thread_context().

ff_mpv_common_frame_size_change()

int ff_mpv_common_frame_size_change

(

MpegEncContext *

s

)

Definition at line 194 of file mpegvideo_dec.c.

Referenced by ff_h263_decode_frame(), ff_mpeg_update_thread_context(), ff_rv34_decode_frame(), and ff_rv34_decode_update_thread_context().

alloc_picture()

static int alloc_picture ( MpegEncContext *  s, Picture *  pic  )

static

Definition at line 248 of file mpegvideo_dec.c.

Referenced by ff_mpv_frame_start().

gray_frame()

static void gray_frame ( AVFrame *  frame )

static

Definition at line 256 of file mpegvideo_dec.c.

Referenced by ff_mpv_frame_start().

ff_mpv_frame_start()

int ff_mpv_frame_start	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

generic function called after decoding the header and before a frame is decoded.

Definition at line 276 of file mpegvideo_dec.c.

Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), h261_decode_frame(), mpeg_field_start(), rv10_decode_packet(), and vc1_decode_frame().

ff_mpv_frame_end()

void ff_mpv_frame_end

(

MpegEncContext *

s

)

Definition at line 498 of file mpegvideo_dec.c.

Referenced by decode_wmv9(), ff_h263_decode_frame(), ff_rv34_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), rv10_decode_packet(), slice_end(), and vc1_decode_frame().

ff_print_debug_info()

void ff_print_debug_info	(	MpegEncContext *	s,
		Picture *	p,
		AVFrame *	pict
	)

Definition at line 506 of file mpegvideo_dec.c.

Referenced by ff_h263_decode_frame(), finish_frame(), h261_decode_frame(), rv10_decode_frame(), slice_end(), and vc1_decode_frame().

ff_mpv_export_qp_table()

int ff_mpv_export_qp_table	(	MpegEncContext *	s,
		AVFrame *	f,
		Picture *	p,
		int	qp_type
	)

Definition at line 513 of file mpegvideo_dec.c.

Referenced by ff_h263_decode_frame(), finish_frame(), rv10_decode_frame(), and slice_end().

ff_mpeg_draw_horiz_band()

void ff_mpeg_draw_horiz_band	(	MpegEncContext *	s,
		int	y,
		int	h
	)

Definition at line 543 of file mpegvideo_dec.c.

Referenced by decode_slice(), dxva2_mpeg2_end_frame(), dxva2_vc1_end_frame(), mpeg_decode_slice(), vaapi_mpeg2_end_frame(), vaapi_mpeg4_end_frame(), vaapi_vc1_end_frame(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

ff_mpeg_flush()

void ff_mpeg_flush

(

AVCodecContext *

avctx

)

Definition at line 551 of file mpegvideo_dec.c.

Referenced by decode_wmv9(), and flush().

ff_mpv_report_decode_progress()

void ff_mpv_report_decode_progress

(

MpegEncContext *

s

)

Definition at line 580 of file mpegvideo_dec.c.

Referenced by decode_slice(), and mpeg_decode_slice().