FFmpeg
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#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "mpegvideo.h"
#include "h263.h"
#include "mpeg4video.h"
Go to the source code of this file.
Macros | |
#define | UNI_MPEG4_ENC_INDEX(last, run, level) ((last)*128*64 + (run)*128 + (level)) |
#define | OFFSET(x) offsetof(MpegEncContext, x) |
#define | VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
Functions | |
static int | get_block_rate (MpegEncContext *s, int16_t block[64], int block_last_index, uint8_t scantable[64]) |
Return the number of bits that encoding the 8x8 block in block would need. | |
static void | restore_ac_coeffs (MpegEncContext *s, int16_t block[6][64], const int dir[6], uint8_t *st[6], const int zigzag_last_index[6]) |
Restore the ac coefficients in block that have been changed by decide_ac_pred(). | |
static int | decide_ac_pred (MpegEncContext *s, int16_t block[6][64], const int dir[6], uint8_t *st[6], int zigzag_last_index[6]) |
Return the optimal value (0 or 1) for the ac_pred element for the given MB in mpeg4. | |
void | ff_clean_mpeg4_qscales (MpegEncContext *s) |
modify mb_type & qscale so that encoding is actually possible in mpeg4 | |
static void | mpeg4_encode_dc (PutBitContext *s, int level, int n) |
Encode the dc value. | |
static int | mpeg4_get_dc_length (int level, int n) |
static void | mpeg4_encode_block (MpegEncContext *s, int16_t *block, int n, int intra_dc, uint8_t *scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb) |
Encode an 8x8 block. | |
static int | mpeg4_get_block_length (MpegEncContext *s, int16_t *block, int n, int intra_dc, uint8_t *scan_table) |
static void | mpeg4_encode_blocks (MpegEncContext *s, int16_t block[6][64], int intra_dc[6], uint8_t **scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb) |
static int | get_b_cbp (MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y, int mb_type) |
void | ff_mpeg4_encode_mb (MpegEncContext *s, int16_t block[6][64], int motion_x, int motion_y) |
void | ff_mpeg4_stuffing (PutBitContext *pbc) |
add mpeg4 stuffing bits (01...1) | |
void | ff_set_mpeg4_time (MpegEncContext *s) |
static void | mpeg4_encode_gop_header (MpegEncContext *s) |
static void | mpeg4_encode_visual_object_header (MpegEncContext *s) |
static void | mpeg4_encode_vol_header (MpegEncContext *s, int vo_number, int vol_number) |
void | ff_mpeg4_encode_picture_header (MpegEncContext *s, int picture_number) |
static void | init_uni_dc_tab (void) |
static void | init_uni_mpeg4_rl_tab (RLTable *rl, uint32_t *bits_tab, uint8_t *len_tab) |
static av_cold int | encode_init (AVCodecContext *avctx) |
void | ff_mpeg4_init_partitions (MpegEncContext *s) |
void | ff_mpeg4_merge_partitions (MpegEncContext *s) |
void | ff_mpeg4_encode_video_packet_header (MpegEncContext *s) |
Variables | |
static uint8_t | uni_DCtab_lum_len [512] |
static uint8_t | uni_DCtab_chrom_len [512] |
static uint16_t | uni_DCtab_lum_bits [512] |
static uint16_t | uni_DCtab_chrom_bits [512] |
static uint32_t | uni_mpeg4_intra_rl_bits [64 *64 *2 *2] |
static uint8_t | uni_mpeg4_intra_rl_len [64 *64 *2 *2] |
static uint32_t | uni_mpeg4_inter_rl_bits [64 *64 *2 *2] |
static uint8_t | uni_mpeg4_inter_rl_len [64 *64 *2 *2] |
static const int | dquant_code [5] = {1,0,9,2,3} |
static const AVOption | options [] |
static const AVClass | mpeg4enc_class |
AVCodec | ff_mpeg4_encoder |
Definition at line 45 of file mpeg4videoenc.c.
Referenced by init_uni_mpeg4_rl_tab(), mpeg4_encode_block(), and mpeg4_get_block_length().
#define OFFSET | ( | x | ) | offsetof(MpegEncContext, x) |
Definition at line 1335 of file mpeg4videoenc.c.
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
Definition at line 1336 of file mpeg4videoenc.c.
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inlinestatic |
Return the number of bits that encoding the 8x8 block in block would need.
[in] | block_last_index | last index in scantable order that refers to a non zero element in block. |
Definition at line 62 of file mpeg4videoenc.c.
Referenced by decide_ac_pred().
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inlinestatic |
Restore the ac coefficients in block that have been changed by decide_ac_pred().
This function also restores s->block_last_index.
[in,out] | block | MB coefficients, these will be restored |
[in] | dir | ac prediction direction for each 8x8 block |
[out] | st | scantable for each 8x8 block |
[in] | zigzag_last_index | index referring to the last non zero coefficient in zigzag order |
Definition at line 94 of file mpeg4videoenc.c.
Referenced by decide_ac_pred(), and ff_mpeg4_encode_mb().
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inlinestatic |
Return the optimal value (0 or 1) for the ac_pred element for the given MB in mpeg4.
This function will also update s->block_last_index and s->ac_val.
[in,out] | block | MB coefficients, these will be updated if 1 is returned |
[in] | dir | ac prediction direction for each 8x8 block |
[out] | st | scantable for each 8x8 block |
[out] | zigzag_last_index | index referring to the last non zero coefficient in zigzag order |
Definition at line 125 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
void ff_clean_mpeg4_qscales | ( | MpegEncContext * | s | ) |
modify mb_type & qscale so that encoding is actually possible in mpeg4
Definition at line 204 of file mpeg4videoenc.c.
Referenced by estimate_qp().
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inlinestatic |
Encode the dc value.
n | block index (0-3 are luma, 4-5 are chroma) |
Definition at line 244 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_block().
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inlinestatic |
Definition at line 285 of file mpeg4videoenc.c.
Referenced by mpeg4_get_block_length().
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inlinestatic |
Encode an 8x8 block.
n | block index (0-3 are luma, 4-5 are chroma) |
Definition at line 297 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_blocks().
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Definition at line 348 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_blocks().
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Definition at line 399 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
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Definition at line 428 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
void ff_mpeg4_encode_mb | ( | MpegEncContext * | s, |
int16_t | block[6][64], | ||
int | motion_x, | ||
int | motion_y | ||
) |
Definition at line 471 of file mpeg4videoenc.c.
Referenced by encode_mb_internal().
void ff_mpeg4_stuffing | ( | PutBitContext * | pbc | ) |
add mpeg4 stuffing bits (01...1)
Definition at line 847 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_gop_header(), mpeg4_encode_visual_object_header(), mpeg4_encode_vol_header(), and write_slice_end().
void ff_set_mpeg4_time | ( | MpegEncContext * | s | ) |
Definition at line 856 of file mpeg4videoenc.c.
Referenced by encode_picture().
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Definition at line 865 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_picture_header().
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Definition at line 894 of file mpeg4videoenc.c.
Referenced by encode_init(), and ff_mpeg4_encode_picture_header().
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Definition at line 939 of file mpeg4videoenc.c.
Referenced by encode_init(), and ff_mpeg4_encode_picture_header().
void ff_mpeg4_encode_picture_header | ( | MpegEncContext * | s, |
int | picture_number | ||
) |
Definition at line 1043 of file mpeg4videoenc.c.
Referenced by encode_picture().
Definition at line 1098 of file mpeg4videoenc.c.
Referenced by encode_init().
Definition at line 1150 of file mpeg4videoenc.c.
Referenced by encode_init().
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Definition at line 1231 of file mpeg4videoenc.c.
void ff_mpeg4_init_partitions | ( | MpegEncContext * | s | ) |
Definition at line 1283 of file mpeg4videoenc.c.
Referenced by encode_thread().
void ff_mpeg4_merge_partitions | ( | MpegEncContext * | s | ) |
Definition at line 1296 of file mpeg4videoenc.c.
Referenced by write_slice_end().
void ff_mpeg4_encode_video_packet_header | ( | MpegEncContext * | s | ) |
Definition at line 1323 of file mpeg4videoenc.c.
Referenced by encode_thread().
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Definition at line 32 of file mpeg4videoenc.c.
Referenced by encode_init(), init_uni_dc_tab(), mpeg4_encode_dc(), and mpeg4_get_dc_length().
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Definition at line 33 of file mpeg4videoenc.c.
Referenced by init_uni_dc_tab(), mpeg4_encode_dc(), and mpeg4_get_dc_length().
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Definition at line 34 of file mpeg4videoenc.c.
Referenced by init_uni_dc_tab(), and mpeg4_encode_dc().
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Definition at line 35 of file mpeg4videoenc.c.
Referenced by init_uni_dc_tab(), and mpeg4_encode_dc().
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Definition at line 39 of file mpeg4videoenc.c.
Referenced by encode_init(), and mpeg4_encode_block().
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Definition at line 40 of file mpeg4videoenc.c.
Referenced by encode_init(), mpeg4_encode_block(), and mpeg4_get_block_length().
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Definition at line 41 of file mpeg4videoenc.c.
Referenced by encode_init(), and mpeg4_encode_block().
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Definition at line 42 of file mpeg4videoenc.c.
Referenced by encode_init(), mpeg4_encode_block(), and mpeg4_get_block_length().
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Definition at line 469 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
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Definition at line 1337 of file mpeg4videoenc.c.
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Definition at line 1344 of file mpeg4videoenc.c.
AVCodec ff_mpeg4_encoder |
Definition at line 1351 of file mpeg4videoenc.c.