FFmpeg
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#include "libavutil/attributes.h"
#include "libavutil/log.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/thread.h"
#include "codec_internal.h"
#include "mpegvideo.h"
#include "h263.h"
#include "h263enc.h"
#include "mpeg4video.h"
#include "mpeg4videodata.h"
#include "mpeg4videodefs.h"
#include "mpeg4videoenc.h"
#include "mpegvideoenc.h"
#include "profiles.h"
#include "version.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, const uint8_t scantable[64]) |
Return the number of bits that encoding the 8x8 block in block would need. More... | |
static void | restore_ac_coeffs (MpegEncContext *s, int16_t block[6][64], const int dir[6], const uint8_t *st[6], const int zigzag_last_index[6]) |
Restore the ac coefficients in block that have been changed by decide_ac_pred(). More... | |
static int | decide_ac_pred (MpegEncContext *s, int16_t block[6][64], const int dir[6], const 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 MPEG-4. More... | |
void | ff_clean_mpeg4_qscales (MpegEncContext *s) |
modify mb_type & qscale so that encoding is actually possible in MPEG-4 More... | |
static void | mpeg4_encode_dc (PutBitContext *s, int level, int n) |
Encode the dc value. More... | |
static int | mpeg4_get_dc_length (int level, int n) |
static void | mpeg4_encode_block (const MpegEncContext *s, const int16_t *block, int n, int intra_dc, const uint8_t *scan_table, PutBitContext *dc_pb, PutBitContext *ac_pb) |
Encode an 8x8 block. More... | |
static int | mpeg4_get_block_length (MpegEncContext *s, const int16_t *block, int n, int intra_dc, const uint8_t *scan_table) |
static void | mpeg4_encode_blocks (MpegEncContext *s, const int16_t block[6][64], const int intra_dc[6], const uint8_t *const *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 MPEG-4 stuffing bits (01...1) More... | |
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) |
int | ff_mpeg4_encode_picture_header (MpegEncContext *s) |
static av_cold void | init_uni_dc_tab (void) |
static av_cold void | init_uni_mpeg4_rl_tab (RLTable *rl, uint32_t *bits_tab, uint8_t *len_tab) |
static av_cold void | mpeg4_encode_init_static (void) |
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 |
const FFCodec | ff_mpeg4_encoder |
Definition at line 57 of file mpeg4videoenc.c.
#define OFFSET | ( | x | ) | offsetof(MpegEncContext, x) |
Definition at line 1365 of file mpeg4videoenc.c.
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM |
Definition at line 1366 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 73 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 108 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 MPEG-4.
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 139 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 MPEG-4
Definition at line 222 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 266 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_block().
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Definition at line 279 of file mpeg4videoenc.c.
Referenced by mpeg4_get_block_length().
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Encode an 8x8 block.
n | block index (0-3 are luma, 4-5 are chroma) |
Definition at line 291 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_blocks().
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Definition at line 352 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_blocks().
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Definition at line 406 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
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Definition at line 442 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 | ||
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Definition at line 486 of file mpeg4videoenc.c.
Referenced by encode_mb_internal().
void ff_mpeg4_stuffing | ( | PutBitContext * | pbc | ) |
add MPEG-4 stuffing bits (01...1)
Definition at line 863 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 871 of file mpeg4videoenc.c.
Referenced by encode_picture().
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Definition at line 881 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_picture_header().
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Definition at line 910 of file mpeg4videoenc.c.
Referenced by encode_init(), and ff_mpeg4_encode_picture_header().
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Definition at line 952 of file mpeg4videoenc.c.
Referenced by encode_init(), and ff_mpeg4_encode_picture_header().
int ff_mpeg4_encode_picture_header | ( | MpegEncContext * | s | ) |
Definition at line 1050 of file mpeg4videoenc.c.
Referenced by encode_picture().
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Definition at line 1109 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_init_static().
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Definition at line 1164 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_init_static().
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Definition at line 1259 of file mpeg4videoenc.c.
Referenced by encode_init().
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Definition at line 1269 of file mpeg4videoenc.c.
void ff_mpeg4_init_partitions | ( | MpegEncContext * | s | ) |
Definition at line 1314 of file mpeg4videoenc.c.
Referenced by encode_thread().
void ff_mpeg4_merge_partitions | ( | MpegEncContext * | s | ) |
Definition at line 1327 of file mpeg4videoenc.c.
Referenced by write_slice_end().
void ff_mpeg4_encode_video_packet_header | ( | MpegEncContext * | s | ) |
Definition at line 1353 of file mpeg4videoenc.c.
Referenced by encode_thread().
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Definition at line 43 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 44 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 45 of file mpeg4videoenc.c.
Referenced by init_uni_dc_tab(), and mpeg4_encode_dc().
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Definition at line 46 of file mpeg4videoenc.c.
Referenced by init_uni_dc_tab(), and mpeg4_encode_dc().
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Definition at line 50 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_block(), and mpeg4_encode_init_static().
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Definition at line 51 of file mpeg4videoenc.c.
Referenced by encode_init(), mpeg4_encode_block(), mpeg4_encode_init_static(), and mpeg4_get_block_length().
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Definition at line 52 of file mpeg4videoenc.c.
Referenced by mpeg4_encode_block(), and mpeg4_encode_init_static().
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Definition at line 53 of file mpeg4videoenc.c.
Referenced by encode_init(), mpeg4_encode_block(), mpeg4_encode_init_static(), and mpeg4_get_block_length().
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Definition at line 484 of file mpeg4videoenc.c.
Referenced by ff_mpeg4_encode_mb().
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Definition at line 1367 of file mpeg4videoenc.c.
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Definition at line 1379 of file mpeg4videoenc.c.
const FFCodec ff_mpeg4_encoder |
Definition at line 1386 of file mpeg4videoenc.c.