mpegvideo header. More...

#include <float.h>
#include "avcodec.h"
#include "blockdsp.h"
#include "error_resilience.h"
#include "fdctdsp.h"
#include "get_bits.h"
#include "h264chroma.h"
#include "h263dsp.h"
#include "hpeldsp.h"
#include "idctdsp.h"
#include "me_cmp.h"
#include "mpegvideodsp.h"
#include "mpegvideoencdsp.h"
#include "pixblockdsp.h"
#include "put_bits.h"
#include "ratecontrol.h"
#include "parser.h"
#include "mpeg12data.h"
#include "qpeldsp.h"
#include "rl.h"
#include "thread.h"
#include "videodsp.h"
#include "libavutil/opt.h"
#include "libavutil/timecode.h"

Data Structures
struct	Picture
	Picture. More...

struct	MotionEstContext
	Motion estimation context. More...

struct	MpegEncContext
	MpegEncContext. More...

Macros
#define	FRAME_SKIPPED 100
	return value for header parsers if frame is not coded

#define	MAX_FCODE 7

#define	MAX_MV 4096

#define	MAX_THREADS 32

#define	MAX_PICTURE_COUNT 36

#define	MAX_B_FRAMES 16

#define	ME_MAP_SIZE 64

#define	MAX_MB_BYTES (301616*3/8 + 120)

#define	INPLACE_OFFSET 16

#define	EDGE_WIDTH 16

#define	SEQ_END_CODE 0x000001b7

#define	SEQ_START_CODE 0x000001b3

#define	GOP_START_CODE 0x000001b8

#define	PICTURE_START_CODE 0x00000100

#define	SLICE_MIN_START_CODE 0x00000101

#define	SLICE_MAX_START_CODE 0x000001af

#define	EXT_START_CODE 0x000001b5

#define	USER_START_CODE 0x000001b2

#define	MV_DIR_FORWARD 1

#define	MV_DIR_BACKWARD 2

#define	MV_DIRECT 4
	bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)

#define	MV_TYPE_16X16 0
	1 vector for the whole mb

#define	MV_TYPE_8X8 1
	4 vectors (h263, mpeg4 4MV)

#define	MV_TYPE_16X8 2
	2 vectors, one per 16x8 block

#define	MV_TYPE_FIELD 3
	2 vectors, one per field

#define	MV_TYPE_DMV 4
	2 vectors, special mpeg2 Dual Prime Vectors

#define	UNI_AC_ENC_INDEX(run, level) ((run)*128 + (level))

#define	CHROMA_420 1

#define	CHROMA_422 2

#define	CHROMA_444 3

#define	SLICE_OK 0

#define	SLICE_ERROR -1

#define	SLICE_END -2
	end marker found

#define	SLICE_NOEND -3
	no end marker or error found but mb count exceeded

#define	FF_MPV_FLAG_SKIP_RD 0x0001

#define	FF_MPV_FLAG_STRICT_GOP 0x0002

#define	FF_MPV_FLAG_QP_RD 0x0004

#define	FF_MPV_FLAG_CBP_RD 0x0008

#define	FF_MPV_FLAG_NAQ 0x0010

#define	FF_MPV_FLAG_MV0 0x0020

#define	FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)

#define	FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM \| AV_OPT_FLAG_ENCODING_PARAM)

#define	FF_MPV_COMMON_OPTS

#define	FF_MPV_GENERIC_CLASS(name)

Enumerations
enum	OutputFormat { FMT_MPEG1, FMT_H261, FMT_H263, FMT_MJPEG }

Functions
void	ff_mpv_common_defaults (MpegEncContext *s)
	Set the given MpegEncContext to common defaults (same for encoding and decoding).

void	ff_dct_encode_init_x86 (MpegEncContext *s)

int	ff_mpv_common_init (MpegEncContext *s)
	init common structure for both encoder and decoder.

void	ff_mpv_common_init_arm (MpegEncContext *s)

void	ff_mpv_common_init_axp (MpegEncContext *s)

void	ff_mpv_common_init_neon (MpegEncContext *s)

void	ff_mpv_common_init_ppc (MpegEncContext *s)

void	ff_mpv_common_init_x86 (MpegEncContext *s)

int	ff_mpv_common_frame_size_change (MpegEncContext *s)

void	ff_mpv_common_end (MpegEncContext *s)

void	ff_mpv_decode_defaults (MpegEncContext *s)
	Set the given MpegEncContext to defaults for decoding.

void	ff_mpv_decode_init (MpegEncContext s, AVCodecContext avctx)

void	ff_mpv_decode_mb (MpegEncContext *s, int16_t block[12][64])

void	ff_mpv_report_decode_progress (MpegEncContext *s)

int	ff_mpv_frame_start (MpegEncContext s, AVCodecContext avctx)
	generic function called after decoding the header and before a frame is decoded.

void	ff_mpv_frame_end (MpegEncContext *s)

int	ff_mpv_lowest_referenced_row (MpegEncContext *s, int dir)
	find the lowest MB row referenced in the MVs

int	ff_mpv_encode_init (AVCodecContext *avctx)

void	ff_mpv_encode_init_x86 (MpegEncContext *s)

int	ff_mpv_encode_end (AVCodecContext *avctx)

int	ff_mpv_encode_picture (AVCodecContext avctx, AVPacket pkt, const AVFrame frame, int got_packet)

void	ff_clean_intra_table_entries (MpegEncContext *s)
	Clean dc, ac, coded_block for the current non-intra MB.

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

void	ff_mpeg_flush (AVCodecContext *avctx)

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

void	ff_print_debug_info2 (AVCodecContext avctx, AVFrame pict, uint8_t mbskip_table, uint32_t mbtype_table, int8_t qscale_table, int16_t(motion_val[2])[2], int *low_delay, int mb_width, int mb_height, int mb_stride, int quarter_sample)
	Print debugging info for the given picture.

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

void	ff_write_quant_matrix (PutBitContext pb, uint16_t matrix)

int	ff_find_unused_picture (MpegEncContext *s, int shared)

int	ff_update_duplicate_context (MpegEncContext dst, MpegEncContext src)

int	ff_mpeg_update_thread_context (AVCodecContext dst, const AVCodecContext src)

void	ff_set_qscale (MpegEncContext *s, int qscale)
	set qscale and update qscale dependent variables.

void	ff_mpv_idct_init (MpegEncContext *s)

int	ff_dct_encode_init (MpegEncContext *s)

void	ff_convert_matrix (MpegEncContext s, int(qmat)[64], uint16_t(qmat16)[2][64], const uint16_t quant_matrix, int bias, int qmin, int qmax, int intra)

int	ff_dct_quantize_c (MpegEncContext s, int16_t block, int n, int qscale, int *overflow)

void	ff_init_block_index (MpegEncContext *s)

void	ff_mpv_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, int dir, uint8_t *ref_picture, op_pixels_func(pix_op)[4], qpel_mc_func(*qpix_op)[16])

int	ff_alloc_picture (MpegEncContext s, Picture pic, int shared)
	Allocate a Picture.

void	ff_block_permute (int16_t block, uint8_t permutation, const uint8_t *scantable, int last)
	permute block according to permuatation.

static void	ff_update_block_index (MpegEncContext *s)

static int	get_bits_diff (MpegEncContext *s)

static int	ff_h263_round_chroma (int x)

void	ff_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)

void	ff_estimate_b_frame_motion (MpegEncContext *s, int mb_x, int mb_y)

int	ff_get_best_fcode (MpegEncContext s, int16_t(mv_table)[2], int type)

void	ff_fix_long_p_mvs (MpegEncContext *s)

void	ff_fix_long_mvs (MpegEncContext s, uint8_t field_select_table, int field_select, int16_t(*mv_table)[2], int f_code, int type, int truncate)

int	ff_init_me (MpegEncContext *s)

int	ff_pre_estimate_p_frame_motion (MpegEncContext *s, int mb_x, int mb_y)

int	ff_epzs_motion_search (MpegEncContext s, int mx_ptr, int my_ptr, int P[10][2], int src_index, int ref_index, int16_t(last_mv)[2], int ref_mv_scale, int size, int h)

int	ff_get_mb_score (MpegEncContext *s, int mx, int my, int src_index, int ref_index, int size, int h, int add_rate)

void	ff_mpeg1_encode_picture_header (MpegEncContext *s, int picture_number)

void	ff_mpeg1_encode_mb (MpegEncContext *s, int16_t block[8][64], int motion_x, int motion_y)

void	ff_mpeg1_encode_init (MpegEncContext *s)

void	ff_mpeg1_encode_slice_header (MpegEncContext *s)

int	ff_rv10_encode_picture_header (MpegEncContext *s, int picture_number)

int	ff_rv_decode_dc (MpegEncContext *s, int n)

void	ff_rv20_encode_picture_header (MpegEncContext *s, int picture_number)

void	ff_msmpeg4_encode_picture_header (MpegEncContext *s, int picture_number)

void	ff_msmpeg4_encode_ext_header (MpegEncContext *s)

void	ff_msmpeg4_encode_mb (MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)

int	ff_msmpeg4_decode_picture_header (MpegEncContext *s)

int	ff_msmpeg4_decode_ext_header (MpegEncContext *s, int buf_size)

int	ff_msmpeg4_decode_init (AVCodecContext *avctx)

int	ff_msmpeg4_encode_init (MpegEncContext *s)

int	ff_wmv2_decode_picture_header (MpegEncContext *s)

int	ff_wmv2_decode_secondary_picture_header (MpegEncContext *s)

void	ff_wmv2_add_mb (MpegEncContext s, int16_t block[6][64], uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr)

void	ff_mspel_motion (MpegEncContext s, uint8_t dest_y, uint8_t dest_cb, uint8_t dest_cr, uint8_t *ref_picture, op_pixels_func(pix_op)[4], int motion_x, int motion_y, int h)

int	ff_wmv2_encode_picture_header (MpegEncContext *s, int picture_number)

void	ff_wmv2_encode_mb (MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y)

int	ff_mpeg_ref_picture (MpegEncContext s, Picture dst, Picture *src)

void	ff_mpeg_unref_picture (MpegEncContext s, Picture picture)
	Deallocate a picture.

void	ff_free_picture_tables (Picture *pic)

Variables
const uint8_t	ff_alternate_horizontal_scan [64]

const uint8_t	ff_alternate_vertical_scan [64]

const AVOption	ff_mpv_generic_options []

const uint8_t	ff_mpeg1_dc_scale_table [128]

const uint8_t *const	ff_mpeg2_dc_scale_table [4]

const uint8_t	ff_aic_dc_scale_table [32]

const uint8_t	ff_h263_chroma_qscale_table [32]

Detailed Description

mpegvideo header.

Definition in file mpegvideo.h.

Macro Definition Documentation

#define FRAME_SKIPPED 100

return value for header parsers if frame is not coded

Definition at line 58 of file mpegvideo.h.

Referenced by ff_h263_decode_frame(), ff_intel_h263_decode_picture_header(), and ff_mpeg4_decode_picture_header().

#define MAX_FCODE 7

Definition at line 67 of file mpegvideo.h.

Referenced by ff_mpeg1_encode_init(), and init_mv_penalty_and_fcode().

#define MAX_MV 4096

Definition at line 68 of file mpegvideo.h.

Referenced by check_bidir_mv(), direct_search(), encode_q_branch(), estimate_motion_b(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), ff_get_best_fcode(), ff_mpeg1_encode_init(), ff_pre_estimate_p_frame_motion(), get_limits(), init_mv_penalty_and_fcode(), and mpv_encode_defaults().

#define MAX_THREADS 32

Definition at line 70 of file mpegvideo.h.

#define MAX_PICTURE_COUNT 36

Definition at line 71 of file mpegvideo.h.

Referenced by ff_find_unused_picture(), ff_mpeg_flush(), ff_mpeg_update_thread_context(), ff_mpv_common_end(), ff_mpv_common_frame_size_change(), ff_mpv_common_init(), ff_mpv_encode_init(), ff_mpv_encode_picture(), ff_mpv_frame_start(), find_unused_picture(), load_input_picture(), release_unused_pictures(), and select_input_picture().

#define MAX_B_FRAMES 16

Definition at line 73 of file mpegvideo.h.

Referenced by ff_mpv_encode_init().

#define ME_MAP_SIZE 64

Definition at line 75 of file mpegvideo.h.

Referenced by encode_init(), ff_init_me(), hpel_motion_search(), init_duplicate_context(), qpel_motion_search(), sab_diamond_search(), sad_hpel_motion_search(), small_diamond_search(), svq1_encode_init(), and update_map_generation().

#define MAX_MB_BYTES (30*16*16*3/8 + 120)

Definition at line 77 of file mpegvideo.h.

Referenced by encode_thread(), ff_mpv_encode_picture(), svq1_encode_frame(), and xvid_encode_frame().

#define INPLACE_OFFSET 16

Definition at line 79 of file mpegvideo.h.

Referenced by estimate_best_b_count(), ff_mpeg4_encode_mb(), load_input_picture(), and select_input_picture().

#define EDGE_WIDTH 16

Definition at line 81 of file mpegvideo.h.

Referenced by alloc_frame_buffer(), avcodec_get_edge_width(), encode_frame(), ff_snow_get_buffer(), ff_snow_release_buffer(), frame_end(), get_buffer_with_edge(), halfpel_interpol(), interpolate_refplane(), and mc_subpel().

#define SEQ_END_CODE 0x000001b7

Definition at line 84 of file mpegvideo.h.

Referenced by ff_mpeg1_find_frame_end(), and mpeg_decode_frame().

#define SEQ_START_CODE 0x000001b3

Definition at line 85 of file mpegvideo.h.

Referenced by decode_chunks(), ff_mpeg1_find_frame_end(), mpeg1_encode_sequence_header(), and mpegvideo_extract_headers().

#define GOP_START_CODE 0x000001b8

Definition at line 86 of file mpegvideo.h.

Referenced by decode_chunks(), and mpeg1_encode_sequence_header().

#define PICTURE_START_CODE 0x00000100

Definition at line 87 of file mpegvideo.h.

Referenced by decode_chunks(), ff_mpeg1_encode_picture_header(), ff_mpeg1_find_frame_end(), and mpegvideo_extract_headers().

#define SLICE_MIN_START_CODE 0x00000101

Definition at line 88 of file mpegvideo.h.

Referenced by decode_chunks(), ff_mpeg1_encode_slice_header(), ff_mpeg1_find_frame_end(), mpegvideo_extract_headers(), and slice_decode_thread().

#define SLICE_MAX_START_CODE 0x000001af

Definition at line 89 of file mpegvideo.h.

#define EXT_START_CODE 0x000001b5

Definition at line 90 of file mpegvideo.h.

#define USER_START_CODE 0x000001b2

Definition at line 91 of file mpegvideo.h.

#define MV_DIR_FORWARD 1

#define MV_DIR_BACKWARD 2

Definition at line 397 of file mpegvideo.h.

Referenced by encode_mb_internal(), encode_thread(), ff_er_frame_end(), ff_h263_decode_mb(), ff_mpeg4_encode_mb(), ff_xvmc_decode_mb(), guess_mv(), mpeg1_encode_mb_internal(), mpeg4_decode_mb(), and mpv_decode_mb_internal().

#define MV_DIRECT 4

bidirectional mode where the difference equals the MV of the last P/S/I-Frame (mpeg4)

Definition at line 398 of file mpegvideo.h.

Referenced by encode_mb_internal(), encode_thread(), ff_h263_decode_mb(), ff_mpeg4_encode_mb(), and mpeg4_decode_mb().

#define MV_TYPE_16X16 0

#define MV_TYPE_8X8 1

4 vectors (h263, mpeg4 4MV)

Definition at line 401 of file mpegvideo.h.

Referenced by cmp_direct_inline(), direct_search(), encode_mb_internal(), encode_thread(), ff_er_frame_end(), ff_h263_decode_mb(), ff_h263_update_motion_val(), ff_mpeg4_encode_mb(), ff_mpeg4_set_direct_mv(), ff_mpv_lowest_referenced_row(), mpeg4_decode_mb(), mpeg4_decode_partitioned_mb(), mpv_motion_internal(), and MPV_motion_lowres().

#define MV_TYPE_16X8 2

2 vectors, one per 16x8 block

Definition at line 402 of file mpegvideo.h.

Referenced by ff_mpv_lowest_referenced_row(), ff_xvmc_decode_mb(), mpeg_decode_mb(), mpv_motion_internal(), and MPV_motion_lowres().

#define MV_TYPE_FIELD 3

2 vectors, one per field

Definition at line 403 of file mpegvideo.h.

Referenced by encode_thread(), ff_mpeg4_encode_mb(), ff_mpeg4_set_direct_mv(), ff_xvmc_decode_mb(), mpeg1_encode_mb_internal(), mpeg4_decode_mb(), mpeg_decode_mb(), mpeg_decode_slice(), mpv_motion_internal(), and MPV_motion_lowres().

#define MV_TYPE_DMV 4

2 vectors, special mpeg2 Dual Prime Vectors

Definition at line 404 of file mpegvideo.h.

Referenced by ff_xvmc_decode_mb(), mpeg_decode_mb(), mpv_motion_internal(), and MPV_motion_lowres().

#define UNI_AC_ENC_INDEX	(	run,
		level
	)	((run)*128 + (level))

Definition at line 451 of file mpegvideo.h.

Referenced by bit8x8_c(), dct_quantize_refine(), dct_quantize_trellis_c(), get_block_rate(), init_uni_ac_vlc(), and rd8x8_c().

#define CHROMA_420 1

Definition at line 602 of file mpegvideo.h.

Referenced by decode_vol_header(), encode_init(), encode_mb(), ff_mjpeg_encode_mb(), ff_mpeg1_encode_mb(), ff_mpeg1_encode_picture_header(), ff_mpv_encode_init(), and vaapi_mpeg4_start_frame().

#define CHROMA_422 2

Definition at line 603 of file mpegvideo.h.

Referenced by encode_mb(), encode_mb_internal(), and ff_mpv_encode_init().

#define CHROMA_444 3

Definition at line 604 of file mpegvideo.h.

Referenced by encode_mb_internal(), ff_mjpeg_encode_mb(), and ff_mpv_encode_init().

#define SLICE_OK 0

Definition at line 629 of file mpegvideo.h.

Referenced by ff_h263_decode_mb(), h261_decode_mb(), mpeg4_decode_mb(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().

#define SLICE_ERROR -1

Definition at line 630 of file mpegvideo.h.

Referenced by h261_decode_mb(), and rv10_decode_packet().

#define SLICE_END -2

end marker found

Definition at line 631 of file mpegvideo.h.

Referenced by decode_slice(), ff_h263_decode_mb(), h261_decode_gob(), h261_decode_mb(), mpeg4_decode_mb(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().

#define SLICE_NOEND -3

no end marker or error found but mb count exceeded

Definition at line 632 of file mpegvideo.h.

Referenced by decode_slice(), and mpeg4_decode_partitioned_mb().

#define FF_MPV_FLAG_SKIP_RD 0x0001

Definition at line 687 of file mpegvideo.h.

Referenced by encode_thread().

#define FF_MPV_FLAG_STRICT_GOP 0x0002

Definition at line 688 of file mpegvideo.h.

Referenced by select_input_picture().

#define FF_MPV_FLAG_QP_RD 0x0004

Definition at line 689 of file mpegvideo.h.

Referenced by encode_mb_internal(), encode_thread(), and ff_mpv_encode_init().

#define FF_MPV_FLAG_CBP_RD 0x0008

Definition at line 690 of file mpegvideo.h.

Referenced by encode_mb_internal(), ff_mpv_encode_init(), get_b_cbp(), and get_p_cbp().

#define FF_MPV_FLAG_NAQ 0x0010

Definition at line 691 of file mpegvideo.h.

Referenced by adaptive_quantization(), and ff_mpv_encode_init().

#define FF_MPV_FLAG_MV0 0x0020

Definition at line 692 of file mpegvideo.h.

Referenced by epzs_motion_search_internal(), ff_estimate_b_frame_motion(), ff_estimate_p_frame_motion(), and ff_mpv_encode_init().

#define FF_MPV_OFFSET ( x ) offsetof(MpegEncContext, x)

Definition at line 695 of file mpegvideo.h.

#define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)

Definition at line 697 of file mpegvideo.h.

#define FF_MPV_COMMON_OPTS

Value:

{ "mpv_flags",      "Flags common for all mpegvideo-based encoders.", FF_MPV_OFFSET(mpv_flags), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "skip_rd",        "RD optimal MB level residual skipping", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_SKIP_RD },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "strict_gop",     "Strictly enforce gop size",             0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_STRICT_GOP }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "qp_rd",          "Use rate distortion optimization for qp selection", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_QP_RD },  0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "cbp_rd",         "use rate distortion optimization for CBP",          0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_CBP_RD }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "naq",            "normalize adaptive quantization",                   0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "mv0",            "always try a mb with mv=<0,0>",                     0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_MV0 },    0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
{ "luma_elim_threshold",   "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
                                                                      FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
{ "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
                                                                      FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
{ "quantizer_noise_shaping", NULL,                                  FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },\
{ "error_rate", "Simulate errors in the bitstream to test error concealment.",                                                                                                  \
                                                                    FF_MPV_OFFSET(error_rate),              AV_OPT_TYPE_INT, { .i64 = 0 },       0, INT_MAX, FF_MPV_OPT_FLAGS },\
{"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)",                                                                          \
                                                                    FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS},                        \
{"rc_qmod_amp", "experimental quantizer modulation",                FF_MPV_OFFSET(rc_qmod_amp), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},           \
{"rc_qmod_freq", "experimental quantizer modulation",               FF_MPV_OFFSET(rc_qmod_freq), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS},             \
{"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions "                                                                           \
          "defined in the section 'Expression Evaluation', the following functions are available: "                                                                             \
          "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv "                                                                           \
          "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.",                                                                         \
                                                                    FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING,                           .flags = FF_MPV_OPT_FLAGS },            \
{"rc_init_cplx", "initial complexity for 1-pass encoding",          FF_MPV_OFFSET(rc_initial_cplx), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},       \
{"rc_buf_aggressivity", "currently useless",                        FF_MPV_OFFSET(rc_buffer_aggressivity), AV_OPT_TYPE_FLOAT, {.dbl = 1.0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS}, \
{"border_mask", "increase the quantizer for macroblocks close to borders", FF_MPV_OFFSET(border_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, FF_MPV_OPT_FLAGS},    \
{"lmin", "minimum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 =  2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \
{"lmax", "maximum Lagrange factor (VBR)",                           FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS },            \

Definition at line 698 of file mpegvideo.h.

#define FF_MPV_GENERIC_CLASS ( name )

Value:

static const AVClass name ## _class = {\
    .class_name = #name " encoder",\
    .item_name  = av_default_item_name,\
    .option     = ff_mpv_generic_options,\
    .version    = LIBAVUTIL_VERSION_INT,\
};

Definition at line 730 of file mpegvideo.h.

Enumeration Type Documentation

enum OutputFormat

Enumerator:

FMT_MPEG1
FMT_H261
FMT_H263
FMT_MJPEG

Definition at line 60 of file mpegvideo.h.

Function Documentation

void ff_mpv_common_defaults ( MpegEncContext * s )

Set the given MpegEncContext to common defaults (same for encoding and decoding).

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

Definition at line 1090 of file mpegvideo.c.

Referenced by ff_mpv_decode_defaults(), and mpv_encode_defaults().

void ff_dct_encode_init_x86 ( MpegEncContext * s )

Definition at line 200 of file mpegvideoenc.c.

Referenced by ff_dct_encode_init().

int ff_mpv_common_init ( MpegEncContext * s )

init common structure for both encoder and decoder.

this assumes that some variables like width/height are already set

Definition at line 1295 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), rv10_decode_init(), rv20_decode_picture_header(), svq1_encode_init(), and vcr2_init_sequence().

void ff_mpv_common_init_arm ( MpegEncContext * s )

Definition at line 43 of file mpegvideo_arm.c.

Referenced by dct_init().

void ff_mpv_common_init_axp ( MpegEncContext * s )

Definition at line 106 of file mpegvideo_alpha.c.

Referenced by dct_init().

void ff_mpv_common_init_neon ( MpegEncContext * s )

Definition at line 126 of file mpegvideo.c.

Referenced by dct_init().

void ff_mpv_common_init_ppc ( MpegEncContext * s )

Definition at line 117 of file mpegvideo_altivec.c.

Referenced by dct_init().

void ff_mpv_common_init_x86 ( MpegEncContext * s )

Definition at line 447 of file mpegvideo.c.

Referenced by dct_init().

int ff_mpv_common_frame_size_change ( MpegEncContext * s )

Definition at line 1458 of file mpegvideo.c.

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

void ff_mpv_common_end ( MpegEncContext * s )

Definition at line 1534 of file mpegvideo.c.

Referenced by ff_h263_decode_end(), ff_mpv_common_frame_size_change(), ff_mpv_common_init(), ff_mpv_encode_end(), ff_rv34_decode_end(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), ff_vc1_decode_end(), h261_decode_end(), h261_decode_frame(), mpeg_decode_end(), rv10_decode_end(), rv20_decode_picture_header(), svq1_encode_end(), vc1_decode_frame(), and vcr2_init_sequence().

void ff_mpv_decode_defaults ( MpegEncContext * s )

Set the given MpegEncContext to defaults for decoding.

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

Definition at line 1113 of file mpegvideo.c.

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

void ff_mpv_decode_init	(	MpegEncContext *	s,
		AVCodecContext *	avctx
	)

Definition at line 1118 of file mpegvideo.c.

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

void ff_mpv_decode_mb	(	MpegEncContext *	s,
		int16_t	block[12][64]
	)

Definition at line 3284 of file mpegvideo.c.

Referenced by decode_slice(), encode_mb_hq(), encode_thread(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg_decode_slice(), mpeg_er_decode_mb(), and rv10_decode_packet().

void ff_mpv_report_decode_progress ( MpegEncContext * s )

Definition at line 3409 of file mpegvideo.c.

Referenced by decode_slice(), and mpeg_decode_slice().

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 1769 of file mpegvideo.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().

void ff_mpv_frame_end ( MpegEncContext * s )

Definition at line 1996 of file mpegvideo.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().

int ff_mpv_lowest_referenced_row	(	MpegEncContext *	s,
		int	dir
	)

find the lowest MB row referenced in the MVs

Definition at line 2932 of file mpegvideo.c.

Referenced by mpv_decode_mb_internal().

int ff_mpv_encode_init ( AVCodecContext * avctx )

Definition at line 255 of file mpegvideo_enc.c.

Referenced by encode_init(), and wmv2_encode_init().

void ff_mpv_encode_init_x86 ( MpegEncContext * s )

int ff_mpv_encode_end ( AVCodecContext * avctx )

Definition at line 1003 of file mpegvideo_enc.c.

Referenced by ff_mpv_encode_init(), and mpeg12_class().

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

Definition at line 1704 of file mpegvideo_enc.c.

Referenced by amv_encode_picture(), and mpeg12_class().

void ff_clean_intra_table_entries ( MpegEncContext * s )

Clean dc, ac, coded_block for the current non-intra MB.

Definition at line 2997 of file mpegvideo.c.

Referenced by encode_thread(), mpeg4_decode_partition_a(), and mpv_decode_mb_internal().

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

Definition at line 3296 of file mpegvideo.c.

Referenced by decode_slice(), dxva2_mpeg2_end_frame(), dxva2_vc1_end_frame(), ff_intrax8_decode_picture(), ff_xvmc_decode_mb(), ff_xvmc_field_end(), mpeg_decode_slice(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

void ff_mpeg_flush ( AVCodecContext * avctx )

Definition at line 3364 of file mpegvideo.c.

Referenced by decode_wmv9(), and flush().

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

Definition at line 2527 of file mpegvideo.c.

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

void ff_print_debug_info2	(	AVCodecContext *	avctx,
		AVFrame *	pict,
		uint8_t *	mbskip_table,
		uint32_t *	mbtype_table,
		int8_t *	qscale_table,
		int16_t(*[2])	motion_val[2],
		int *	low_delay,
		int	mb_width,
		int	mb_height,
		int	mb_stride,
		int	quarter_sample
	)

Print debugging info for the given picture.

Definition at line 2151 of file mpegvideo.c.

Referenced by ff_print_debug_info(), and h264_decode_frame().

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

Definition at line 2534 of file mpegvideo.c.

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

void ff_write_quant_matrix	(	PutBitContext *	pb,
		uint16_t *	matrix
	)

Definition at line 170 of file mpegvideo_enc.c.

Referenced by mpeg1_encode_sequence_header(), and mpeg4_encode_vol_header().

int ff_find_unused_picture	(	MpegEncContext *	s,
		int	shared
	)

Definition at line 1735 of file mpegvideo.c.

Referenced by ff_h263_decode_frame(), ff_mpv_frame_start(), load_input_picture(), and select_input_picture().

int ff_update_duplicate_context	(	MpegEncContext *	dst,
		MpegEncContext *	src
	)

Definition at line 920 of file mpegvideo.c.

Referenced by decode_chunks(), and encode_picture().

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

Definition at line 945 of file mpegvideo.c.

Referenced by ff_rv34_decode_update_thread_context(), mpeg4_update_thread_context(), and mpeg_decode_update_thread_context().

void ff_set_qscale	(	MpegEncContext *	s,
		int	qscale
	)

set qscale and update qscale dependent variables.

Definition at line 3395 of file mpegvideo.c.

Referenced by decode_slice(), encode_mb_internal(), encode_thread(), ff_h261_encode_mb(), h261_decode_gob(), h261_decode_mb(), h263_decode_dquant(), mpeg4_decode_mb(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg4_decode_partitioned_mb(), and rv10_decode_packet().

void ff_mpv_idct_init ( MpegEncContext * s )

Definition at line 427 of file mpegvideo.c.

Referenced by dnxhd_encode_init(), ff_h263_decode_frame(), ff_h263_decode_init(), ff_mpeg4_workaround_bugs(), ff_mpeg_update_thread_context(), ff_mpv_encode_init(), ff_rv34_decode_init(), ff_rv34_decode_init_thread_copy(), h261_decode_frame(), mpeg_decode_init(), rv10_decode_init(), and vcr2_init_sequence().

int ff_dct_encode_init ( MpegEncContext * s )

Definition at line 237 of file mpegvideo_enc.c.

Referenced by dnxhd_encode_init(), and ff_mpv_encode_init().

void ff_convert_matrix	(	MpegEncContext *	s,
		int(*)	qmat[64],
		uint16_t(*)	qmat16[2][64],
		const uint16_t *	quant_matrix,
		int	bias,
		int	qmin,
		int	qmax,
		int	intra
	)

Definition at line 81 of file mpegvideo_enc.c.

Referenced by dnxhd_init_qmat(), encode_picture(), and ff_mpv_encode_init().

int ff_dct_quantize_c	(	MpegEncContext *	s,
		int16_t *	block,
		int	n,
		int	qscale,
		int *	overflow
	)

Definition at line 4472 of file mpegvideo_enc.c.

Referenced by dnxhd_encode_init(), encode_mb_internal(), and ff_dct_encode_init().

void ff_init_block_index ( MpegEncContext * s )

Definition at line 3303 of file mpegvideo.c.

Referenced by decode_slice(), encode_thread(), estimate_motion_thread(), ff_h261_reorder_mb_index(), h261_decode_mb(), h261_decode_mb_skipped(), init_block_index(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_decode_slice(), mpeg_er_decode_mb(), rv10_decode_packet(), and rv34_decode_slice().

void ff_mpv_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		int	dir,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		qpel_mc_func(*)	qpix_op[16]
	)

Definition at line 972 of file mpegvideo_motion.c.

Referenced by encode_mb_internal(), and mpv_decode_mb_internal().

int ff_alloc_picture	(	MpegEncContext *	s,
		Picture *	pic,
		int	shared
	)

Allocate a Picture.

The pixels are allocated/set by calling get_buffer() if shared = 0.

The pixels are allocated/set by calling get_buffer() if shared = 0

Definition at line 652 of file mpegvideo.c.

Referenced by ff_mpv_frame_start(), load_input_picture(), and select_input_picture().

void ff_block_permute	(	int16_t *	block,
		uint8_t *	permutation,
		const uint8_t *	scantable,
		int	last
	)

permute block according to permuatation.

Parameters

last	last non zero element in scantable order

permute block according to permuatation.

Parameters

block	the block which will be permuted according to the given permutation vector
permutation	the permutation vector
last	the last non zero coefficient in scantable order, used to speed the permutation up
scantable	the used scantable, this is only used to speed the permutation up, the block is not (inverse) permutated to scantable order!

Definition at line 3343 of file mpegvideo.c.

Referenced by ff_dct_quantize_c().

static void ff_update_block_index ( MpegEncContext * s )

inlinestatic

Definition at line 819 of file mpegvideo.h.

Referenced by decode_slice(), encode_thread(), ff_h261_reorder_mb_index(), ff_vc1_apply_p_loop_filter(), h261_decode_mb(), h261_decode_mb_skipped(), mpeg4_decode_partition_a(), mpeg4_decode_partition_b(), mpeg_er_decode_mb(), rv10_decode_packet(), rv34_decode_slice(), vc1_decode_b_blocks(), vc1_decode_i_blocks(), vc1_decode_i_blocks_adv(), vc1_decode_p_blocks(), and vc1_decode_skip_blocks().

static int get_bits_diff ( MpegEncContext * s )

inlinestatic

Definition at line 833 of file mpegvideo.h.

Referenced by ff_h263_encode_mb(), ff_mjpeg_encode_mb(), ff_mpeg4_encode_mb(), ff_msmpeg4_encode_mb(), ff_wmv2_encode_mb(), mpeg1_encode_mb_internal(), and write_slice_end().

static int ff_h263_round_chroma ( int x )

inlinestatic

Definition at line 842 of file mpegvideo.h.

Referenced by chroma_4mv_motion(), chroma_4mv_motion_lowres(), and h263_mv4_search().

void ff_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

< the variance of the block (sum of squared (p[y][x]-average))

< sum of squared differences with the estimated motion vector

Definition at line 887 of file motion_est.c.

Referenced by estimate_motion_thread(), and svq1_encode_plane().

void ff_estimate_b_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1511 of file motion_est.c.

Referenced by estimate_motion_thread().

int ff_get_best_fcode	(	MpegEncContext *	s,
		int16_t(*)	mv_table[2],
		int	type
	)

Definition at line 1619 of file motion_est.c.

Referenced by encode_picture().

void ff_fix_long_p_mvs ( MpegEncContext * s )

Definition at line 1672 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

void ff_fix_long_mvs	(	MpegEncContext *	s,
		uint8_t *	field_select_table,
		int	field_select,
		int16_t(*)	mv_table[2],
		int	f_code,
		int	type,
		int	truncate
	)

Parameters

truncate 1 for truncation, 0 for using intra

Definition at line 1722 of file motion_est.c.

Referenced by encode_picture(), and svq1_encode_plane().

int ff_init_me ( MpegEncContext * s )

Definition at line 304 of file motion_est.c.

Referenced by encode_frame(), encode_picture(), and svq1_encode_plane().

int ff_pre_estimate_p_frame_motion	(	MpegEncContext *	s,
		int	mb_x,
		int	mb_y
	)

Definition at line 1072 of file motion_est.c.

Referenced by pre_estimate_motion_thread().

int ff_epzs_motion_search	(	MpegEncContext *	s,
		int *	mx_ptr,
		int *	my_ptr,
		int	P[10][2],
		int	src_index,
		int	ref_index,
		int16_t(*)	last_mv[2],
		int	ref_mv_scale,
		int	size,
		int	h
	)

Definition at line 974 of file motion_est_template.c.

Referenced by direct_search(), encode_q_branch(), estimate_motion_b(), ff_estimate_p_frame_motion(), and ff_pre_estimate_p_frame_motion().

int ff_get_mb_score	(	MpegEncContext *	s,
		int	mx,
		int	my,
		int	src_index,
		int	ref_index,
		int	size,
		int	h,
		int	add_rate
	)

Definition at line 191 of file motion_est_template.c.

Referenced by encode_q_branch().

void ff_mpeg1_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 426 of file mpeg12enc.c.

Referenced by encode_picture().

void ff_mpeg1_encode_mb	(	MpegEncContext *	s,
		int16_t	block[8][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 998 of file mpeg12enc.c.

Referenced by encode_mb_internal().

void ff_mpeg1_encode_init ( MpegEncContext * s )

Definition at line 1007 of file mpeg12enc.c.

Referenced by ff_mpv_encode_init().

void ff_mpeg1_encode_slice_header ( MpegEncContext * s )

Definition at line 412 of file mpeg12enc.c.

Referenced by encode_thread(), and ff_mpeg1_encode_picture_header().

int ff_rv10_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 31 of file rv10enc.c.

Referenced by encode_picture().

int ff_rv_decode_dc	(	MpegEncContext *	s,
		int	n
	)

Definition at line 194 of file rv10.c.

Referenced by h263_decode_block().

void ff_rv20_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 32 of file rv20enc.c.

Referenced by encode_picture().

void ff_msmpeg4_encode_picture_header	(	MpegEncContext *	s,
		int	picture_number
	)

Definition at line 223 of file msmpeg4enc.c.

Referenced by encode_picture().

void ff_msmpeg4_encode_ext_header ( MpegEncContext * s )

Definition at line 283 of file msmpeg4enc.c.

Referenced by encode_thread(), and ff_msmpeg4_encode_picture_header().

void ff_msmpeg4_encode_mb	(	MpegEncContext *	s,
		int16_t	block[6][64],
		int	motion_x,
		int	motion_y
	)

Definition at line 380 of file msmpeg4enc.c.

Referenced by encode_mb_internal().

int ff_msmpeg4_decode_picture_header ( MpegEncContext * s )

Definition at line 396 of file msmpeg4dec.c.

Referenced by ff_h263_decode_frame().

int ff_msmpeg4_decode_ext_header	(	MpegEncContext *	s,
		int	buf_size
	)

Definition at line 551 of file msmpeg4dec.c.

Referenced by ff_h263_decode_frame(), and ff_msmpeg4_decode_picture_header().

int ff_msmpeg4_decode_init ( AVCodecContext * avctx )

Definition at line 286 of file msmpeg4dec.c.

Referenced by vc1_decode_frame(), vc1_decode_init(), wmv2_decode_init(), and wmv9_init().

int ff_msmpeg4_encode_init ( MpegEncContext * s )

Definition at line 120 of file msmpeg4enc.c.

Referenced by ff_mpv_encode_init().

int ff_wmv2_decode_picture_header ( MpegEncContext * s )

Definition at line 119 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

int ff_wmv2_decode_secondary_picture_header ( MpegEncContext * s )

Definition at line 139 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

void ff_wmv2_add_mb	(	MpegEncContext *	s,
		int16_t	block[6][64],
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr
	)

Definition at line 81 of file wmv2.c.

Referenced by mpv_decode_mb_internal().

void ff_mspel_motion	(	MpegEncContext *	s,
		uint8_t *	dest_y,
		uint8_t *	dest_cb,
		uint8_t *	dest_cr,
		uint8_t **	ref_picture,
		op_pixels_func(*)	pix_op[4],
		int	motion_x,
		int	motion_y,
		int	h
	)