28 #ifndef AVCODEC_MPEGVIDEO_H
29 #define AVCODEC_MPEGVIDEO_H
61 #define MAX_THREADS 32
63 #define MAX_B_FRAMES 16
66 #define SEQ_END_CODE 0x000001b7
67 #define SEQ_START_CODE 0x000001b3
68 #define GOP_START_CODE 0x000001b8
69 #define PICTURE_START_CODE 0x00000100
70 #define SLICE_MIN_START_CODE 0x00000101
71 #define SLICE_MAX_START_CODE 0x000001af
72 #define EXT_START_CODE 0x000001b5
73 #define USER_START_CODE 0x000001b2
255 #if FF_API_MOTION_EST
262 #define MV_DIR_FORWARD 1
263 #define MV_DIR_BACKWARD 2
266 #define MV_TYPE_16X16 0
267 #define MV_TYPE_8X8 1
268 #define MV_TYPE_16X8 2
269 #define MV_TYPE_FIELD 3
270 #define MV_TYPE_DMV 4
318 #define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
502 #define SLICE_ERROR -1
504 #define SLICE_NOEND -3
571 #define FF_MPV_FLAG_SKIP_RD 0x0001
572 #define FF_MPV_FLAG_STRICT_GOP 0x0002
573 #define FF_MPV_FLAG_QP_RD 0x0004
574 #define FF_MPV_FLAG_CBP_RD 0x0008
575 #define FF_MPV_FLAG_NAQ 0x0010
576 #define FF_MPV_FLAG_MV0 0x0020
584 #define FF_MPV_OPT_CMP_FUNC \
585 { "sad", "Sum of absolute differences, fast", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
586 { "sse", "Sum of squared errors", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
587 { "satd", "Sum of absolute Hadamard transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_SATD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
588 { "dct", "Sum of absolute DCT transformed differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
589 { "psnr", "Sum of squared quantization errors, low quality", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_PSNR }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
590 { "bit", "Number of bits needed for the block", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_BIT }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
591 { "rd", "Rate distortion optimal, slow", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_RD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
592 { "zero", "Zero", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_ZERO }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
593 { "vsad", "Sum of absolute vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
594 { "vsse", "Sum of squared vertical differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_VSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
595 { "nsse", "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
596 { "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
597 { "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
598 { "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
599 { "msad", "Sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
601 #ifndef FF_MPV_OFFSET
602 #define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)
604 #define FF_MPV_OPT_FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM)
605 #define FF_MPV_COMMON_OPTS \
606 FF_MPV_OPT_CMP_FUNC, \
607 { "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" },\
608 { "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" },\
609 { "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" },\
610 { "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" },\
611 { "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" },\
612 { "naq", "normalize adaptive quantization", 0, AV_OPT_TYPE_CONST, { .i64 = FF_MPV_FLAG_NAQ }, 0, 0, FF_MPV_OPT_FLAGS, "mpv_flags" },\
613 { "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" },\
614 { "luma_elim_threshold", "single coefficient elimination threshold for luminance (negative values also consider dc coefficient)",\
615 FF_MPV_OFFSET(luma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
616 { "chroma_elim_threshold", "single coefficient elimination threshold for chrominance (negative values also consider dc coefficient)",\
617 FF_MPV_OFFSET(chroma_elim_threshold), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS },\
618 { "quantizer_noise_shaping", NULL, FF_MPV_OFFSET(quantizer_noise_shaping), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
619 { "error_rate", "Simulate errors in the bitstream to test error concealment.", \
620 FF_MPV_OFFSET(error_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FF_MPV_OPT_FLAGS },\
621 {"qsquish", "how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function)", \
622 FF_MPV_OFFSET(rc_qsquish), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, 0, 99, FF_MPV_OPT_FLAGS}, \
623 {"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}, \
624 {"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}, \
625 {"rc_eq", "Set rate control equation. When computing the expression, besides the standard functions " \
626 "defined in the section 'Expression Evaluation', the following functions are available: " \
627 "bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv " \
628 "fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.", \
629 FF_MPV_OFFSET(rc_eq), AV_OPT_TYPE_STRING, .flags = FF_MPV_OPT_FLAGS }, \
630 {"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}, \
631 {"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}, \
632 {"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}, \
633 {"lmin", "minimum Lagrange factor (VBR)", FF_MPV_OFFSET(lmin), AV_OPT_TYPE_INT, {.i64 = 2*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
634 {"lmax", "maximum Lagrange factor (VBR)", FF_MPV_OFFSET(lmax), AV_OPT_TYPE_INT, {.i64 = 31*FF_QP2LAMBDA }, 0, INT_MAX, FF_MPV_OPT_FLAGS }, \
635 {"ibias", "intra quant bias", FF_MPV_OFFSET(intra_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
636 {"pbias", "inter quant bias", FF_MPV_OFFSET(inter_quant_bias), AV_OPT_TYPE_INT, {.i64 = FF_DEFAULT_QUANT_BIAS }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
637 {"rc_strategy", "ratecontrol method", FF_MPV_OFFSET(rc_strategy), AV_OPT_TYPE_INT, {.i64 = MPV_RC_STRATEGY_FFMPEG }, 0, NB_MPV_RC_STRATEGY-1, FF_MPV_OPT_FLAGS, "rc_strategy" }, \
638 { "ffmpeg", "default native rate control", 0, AV_OPT_TYPE_CONST, { .i64 = MPV_RC_STRATEGY_FFMPEG }, 0, 0, FF_MPV_OPT_FLAGS, "rc_strategy" }, \
639 { "xvid", "libxvid (2 pass only)", 0, AV_OPT_TYPE_CONST, { .i64 = MPV_RC_STRATEGY_XVID }, 0, 0, FF_MPV_OPT_FLAGS, "rc_strategy" }, \
640 {"motion_est", "motion estimation algorithm", FF_MPV_OFFSET(motion_est), AV_OPT_TYPE_INT, {.i64 = FF_ME_EPZS }, FF_ME_ZERO, FF_ME_XONE, FF_MPV_OPT_FLAGS, "motion_est" }, \
641 { "zero", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_ZERO }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
642 { "epzs", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_EPZS }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
643 { "xone", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = FF_ME_XONE }, 0, 0, FF_MPV_OPT_FLAGS, "motion_est" }, \
644 { "force_duplicated_matrix", "Always write luma and chroma matrix for mjpeg, useful for rtp streaming.", FF_MPV_OFFSET(force_duplicated_matrix), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
645 {"b_strategy", "Strategy to choose between I/P/B-frames", FF_MPV_OFFSET(b_frame_strategy), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 2, FF_MPV_OPT_FLAGS }, \
646 {"b_sensitivity", "Adjust sensitivity of b_frame_strategy 1", FF_MPV_OFFSET(b_sensitivity), AV_OPT_TYPE_INT, {.i64 = 40 }, 1, INT_MAX, FF_MPV_OPT_FLAGS }, \
647 {"brd_scale", "Downscale frames for dynamic B-frame decision", FF_MPV_OFFSET(brd_scale), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 3, FF_MPV_OPT_FLAGS }, \
648 {"skip_threshold", "Frame skip threshold", FF_MPV_OFFSET(frame_skip_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
649 {"skip_factor", "Frame skip factor", FF_MPV_OFFSET(frame_skip_factor), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
650 {"skip_exp", "Frame skip exponent", FF_MPV_OFFSET(frame_skip_exp), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
651 {"skip_cmp", "Frame skip compare function", FF_MPV_OFFSET(frame_skip_cmp), AV_OPT_TYPE_INT, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
652 {"sc_threshold", "Scene change threshold", FF_MPV_OFFSET(scenechange_threshold), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
653 {"noise_reduction", "Noise reduction", FF_MPV_OFFSET(noise_reduction), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
654 {"mpeg_quant", "Use MPEG quantizers instead of H.263", FF_MPV_OFFSET(mpeg_quant), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, FF_MPV_OPT_FLAGS }, \
655 {"ps", "RTP payload size in bytes", FF_MPV_OFFSET(rtp_payload_size), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
656 {"mepc", "Motion estimation bitrate penalty compensation (1.0 = 256)", FF_MPV_OFFSET(me_penalty_compensation), AV_OPT_TYPE_INT, {.i64 = 256 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
657 {"mepre", "pre motion estimation", FF_MPV_OFFSET(me_pre), AV_OPT_TYPE_INT, {.i64 = 0 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS }, \
703 uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
718 const uint16_t *quant_matrix,
int bias,
int qmin,
int qmax,
int intra);
721 const uint8_t *scantable,
int last);
740 s->
dest[0]+= 2*block_size;
741 s->
dest[1]+= block_size;
742 s->
dest[2]+= block_size;
int bitstream_buffer_size
int chroma_elim_threshold
int rv10_first_dc_coded[3]
int frame_bits
bits used for the current frame
RateControlContext rc_context
contains stuff only accessed in ratecontrol.c
int16_t(* b_bidir_back_mv_table_base)[2]
int64_t timecode_frame_start
GOP timecode frame start number, in non drop frame format.
Holds JPEG frame data and Huffman table data.
ScanTable intra_v_scantable
void(* dct_unquantize_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
int time_increment_bits
< number of bits to represent the fractional part of time (encoder only)
This structure describes decoded (raw) audio or video data.
int16_t(* p_mv_table)[2]
MV table (1MV per MB) P-frame encoding.
uint8_t * fcode_tab
smallest fcode needed for each MV
int start_mb_y
start mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
const uint8_t * y_dc_scale_table
qscale -> y_dc_scale table
int sprite_warping_accuracy
int last_mv[2][2][2]
last MV, used for MV prediction in MPEG-1 & B-frame MPEG-4
int ff_mpv_common_init(MpegEncContext *s)
init common structure for both encoder and decoder.
void ff_init_block_index(MpegEncContext *s)
AVFrame * tmp_frames[MAX_B_FRAMES+2]
uint8_t * coded_block_base
int end_mb_y
end mb_y of this thread (so current thread should process start_mb_y <= row < end_mb_y) ...
uint16_t(* q_chroma_intra_matrix16)[2][64]
uint16_t chroma_intra_matrix[64]
int16_t(*[3] ac_val)[16]
used for MPEG-4 AC prediction, all 3 arrays must be continuous
int v_edge_pos
horizontal / vertical position of the right/bottom edge (pixel replication)
uint16_t chroma_inter_matrix[64]
void ff_mpv_frame_end(MpegEncContext *s)
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
int msmpeg4_version
0=not msmpeg4, 1=mp41, 2=mp42, 3=mp43/divx3 4=wmv1/7 5=wmv2/8
uint8_t * bitstream_buffer
void ff_set_qscale(MpegEncContext *s, int qscale)
set qscale and update qscale dependent variables.
int obmc
overlapped block motion compensation
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 scan_offset
reserve space for SVCD scan offset user data.
int16_t(*[2][2] p_field_mv_table)[2]
MV table (2MV per MB) interlaced P-frame encoding.
int16_t(* p_mv_table_base)[2]
int min_qcoeff
minimum encodable coefficient
int real_sprite_warping_points
void(* qpel_mc_func)(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
void ff_clean_intra_table_entries(MpegEncContext *s)
Clean dc, ac, coded_block for the current non-intra MB.
int mpv_flags
flags set by private options
uint8_t * intra_ac_vlc_length
int padding_bug_score
used to detect the VERY common padding bug in MPEG-4
int mb_num
number of MBs of a picture
int time_base
time in seconds of last I,P,S Frame
int h263_aic
Advanced INTRA Coding (AIC)
int16_t(* b_back_mv_table)[2]
MV table (1MV per MB) backward mode B-frame encoding.
int encoding
true if we are encoding (vs decoding)
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
void(* dct_unquantize_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
int16_t(* b_back_mv_table_base)[2]
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
int skipdct
skip dct and code zero residual
float rc_buffer_aggressivity
int picture_in_gop_number
0-> first pic in gop, ...
int alt_inter_vlc
alternative inter vlc
int mb_num_left
number of MBs left in this video packet (for partitioned Slices only)
int64_t time
time of current frame
void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
Permute an 8x8 block according to permutation.
const AVOption ff_mpv_generic_options[]
AVRational mpeg2_frame_rate_ext
Picture ** input_picture
next pictures on display order for encoding
void(* denoise_dct)(struct MpegEncContext *s, int16_t *block)
PutBitContext pb2
used for data partitioned VOPs
enum OutputFormat out_format
output format
uint16_t(* dct_offset)[64]
void ff_dct_encode_init_x86(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])
uint8_t * pred_dir_table
used to store pred_dir for partitioned decoding
Multithreading support functions.
Motion estimation context.
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
int force_duplicated_matrix
Force duplication of mjpeg matrices, useful for rtp streaming.
int misc_bits
cbp, mb_type
int no_rounding
apply no rounding to motion compensation (MPEG-4, msmpeg4, ...) for B-frames rounding mode is always ...
int(* q_chroma_intra_matrix)[64]
Picture current_picture
copy of the current picture structure.
GetBitContext last_resync_gb
used to search for the next resync marker
void ff_mpv_common_init_arm(MpegEncContext *s)
void ff_mpv_common_init_ppc(MpegEncContext *s)
int16_t(* b_bidir_forw_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
bitstream reader API header.
uint16_t pp_time
time distance between the last 2 p,s,i frames
int mb_height
number of MBs horizontally & vertically
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
int codec_tag
internal codec_tag upper case converted from avctx codec_tag
int max_qcoeff
maximum encodable coefficient
int16_t(*[2][2] p_field_mv_table_base)[2]
int scenechange_threshold
int dquant
qscale difference to prev qscale
int gop_picture_number
index of the first picture of a GOP based on fake_pic_num & MPEG-1 specific
static void ff_update_block_index(MpegEncContext *s)
int sprite_offset[2][2]
sprite offset[isChroma][isMVY]
int(* q_inter_matrix)[64]
static int get_bits_diff(MpegEncContext *s)
int(* q_intra_matrix)[64]
precomputed matrix (combine qscale and DCT renorm)
int intra_only
if true, only intra pictures are generated
int16_t * dc_val[3]
used for MPEG-4 DC prediction, all 3 arrays must be continuous
int h263_plus
H.263+ headers.
int slice_context_count
number of used thread_contexts
int last_non_b_pict_type
used for MPEG-4 gmc B-frames & ratecontrol
AVCodecID
Identify the syntax and semantics of the bitstream.
int last_dc[3]
last DC values for MPEG-1
int16_t direct_scale_mv[2][64]
precomputed to avoid divisions in ff_mpeg4_set_direct_mv
uint8_t * inter_ac_vlc_last_length
int rl_chroma_table_index
int mb_skipped
MUST BE SET only during DECODING.
int strict_std_compliance
strictly follow the std (MPEG-4, ...)
int partitioned_frame
is current frame partitioned
void ff_mpv_common_end(MpegEncContext *s)
int unrestricted_mv
mv can point outside of the coded picture
int last_lambda_for[5]
last lambda for a specific pict type
void(* dct_unquantize_mpeg2_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
void(* dct_unquantize_mpeg1_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
uint8_t * intra_chroma_ac_vlc_length
int h263_slice_structured
MpegvideoEncDSPContext mpvencdsp
int quarter_sample
1->qpel, 0->half pel ME/MC
uint16_t * mb_type
Table for candidate MB types for encoding (defines in mpegutils.h)
int me_pre
prepass for motion estimation
int low_delay
no reordering needed / has no B-frames
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
int(* decode_mb)(struct MpegEncContext *s, int16_t block[6][64])
uint8_t *[2][2] b_field_select_table
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.
static int put_bits_count(PutBitContext *s)
int resync_mb_x
x position of last resync marker
int coded_picture_number
used to set pic->coded_picture_number, should not be used for/by anything else
void ff_mpv_common_init_mips(MpegEncContext *s)
int ff_mpv_reallocate_putbitbuffer(MpegEncContext *s, size_t threshold, size_t size_increase)
void ff_mpv_common_init_neon(MpegEncContext *s)
uint8_t * intra_ac_vlc_last_length
int sprite_delta[2][2]
sprite_delta [isY][isMVY]
void(* op_pixels_func)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
generic function called after decoding the header and before a frame is decoded.
uint16_t(* q_inter_matrix16)[2][64]
uint8_t * vbv_delay_ptr
pointer to vbv_delay in the bitstream
int fixed_qscale
fixed qscale if non zero
int next_p_frame_damaged
set if the next p frame is damaged, to avoid showing trashed B-frames
int me_method
ME algorithm.
int umvplus
== H.263+ && unrestricted_mv
Picture new_picture
copy of the source picture structure for encoding.
int intra_quant_bias
bias for the quantizer
uint8_t * mbskip_table
used to avoid copy if macroblock skipped (for black regions for example) and used for B-frame encodin...
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
Picture * current_picture_ptr
pointer to the current picture
unsigned int allocated_bitstream_buffer_size
int16_t(* ac_val_base)[16]
uint16_t(* q_intra_matrix16)[2][64]
identical to the above but for MMX & these are not permutated, second 64 entries are bias ...
int16_t(*[2][2][2] b_field_mv_table_base)[2]
int(* ac_stats)[2][MAX_LEVEL+1][MAX_RUN+1][2]
[mb_intra][isChroma][level][run][last]
int16_t(* b_forw_mv_table_base)[2]
int16_t(*[12] pblocks)[64]
int block_last_index[12]
last non zero coefficient in block
int pb_frame
PB-frame mode (0 = none, 1 = base, 2 = improved)
uint8_t * mbintra_table
used to avoid setting {ac, dc, cbp}-pred stuff to zero on inter MB decoding
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
int ac_esc_length
num of bits needed to encode the longest esc
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix)
int block_index[6]
index to current MB in block based arrays with edges
int ff_dct_quantize_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
void ff_mpeg_flush(AVCodecContext *avctx)
int * mb_index2xy
mb_index -> mb_x + mb_y*mb_stride
void ff_mpv_common_init_x86(MpegEncContext *s)
struct MJpegContext * mjpeg_ctx
int first_field
is 1 for the first field of a field picture 0 otherwise
void ff_mpv_idct_init(MpegEncContext *s)
int first_slice_line
used in MPEG-4 too to handle resync markers
int16_t(* b_bidir_forw_mv_table_base)[2]
uint16_t inter_matrix[64]
uint8_t * luma_dc_vlc_length
int concealment_motion_vectors
struct MpegEncContext * thread_context[MAX_THREADS]
unsigned int lambda2
(lambda*lambda) >> FF_LAMBDA_SHIFT
Libavcodec external API header.
int ff_mpeg_update_thread_context(AVCodecContext *dst, const AVCodecContext *src)
int h263_flv
use flv H.263 header
char * tc_opt_str
timecode option string
ptrdiff_t linesize
line size, in bytes, may be different from width
void ff_mpv_decode_defaults(MpegEncContext *s)
Set the given MpegEncContext to defaults for decoding.
uint8_t * intra_chroma_ac_vlc_last_length
main external API structure.
ScanTable intra_scantable
uint8_t * coded_block
used for coded block pattern prediction (msmpeg4v3, wmv1)
int height
picture size. must be a multiple of 16
int ff_dct_encode_init(MpegEncContext *s)
int64_t dts_delta
pts difference between the first and second input frame, used for calculating dts of the first frame ...
int64_t user_specified_pts
last non-zero pts from AVFrame which was passed into avcodec_encode_video2()
int ff_mpv_encode_init(AVCodecContext *avctx)
Picture * picture
main picture buffer
int data_partitioning
data partitioning flag from header
uint8_t * inter_ac_vlc_length
Describe the class of an AVClass context structure.
int stuffing_bits
bits used for stuffing
ScanTable intra_h_scantable
int16_t(*[2][2][2] b_field_mv_table)[2]
MV table (4MV per MB) interlaced B-frame encoding.
uint8_t * cbp_table
used to store cbp, ac_pred for partitioned decoding
int closed_gop
MPEG1/2 GOP is closed.
Rational number (pair of numerator and denominator).
void ff_mpv_common_init_axp(MpegEncContext *s)
int input_picture_number
used to set pic->display_picture_number, should not be used for/by anything else
int slice_height
in macroblocks
ptrdiff_t uvlinesize
line size, for chroma in bytes, may be different from width
int mb_info
interval for outputting info about mb offsets as side data
int f_code
forward MV resolution
int max_b_frames
max number of B-frames for encoding
int pict_type
AV_PICTURE_TYPE_I, AV_PICTURE_TYPE_P, AV_PICTURE_TYPE_B, ...
int last_mv_dir
last mv_dir, used for B-frame encoding
int motion_est
ME algorithm.
int h263_pred
use MPEG-4/H.263 ac/dc predictions
int16_t(* b_bidir_back_mv_table)[2]
MV table (1MV per MB) bidir mode B-frame encoding.
uint8_t *[2] p_field_select_table
int16_t(* b_direct_mv_table)[2]
MV table (1MV per MB) direct mode B-frame encoding.
uint16_t pb_field_time
like above, just for interlaced
const uint8_t * c_dc_scale_table
qscale -> c_dc_scale table
int me_penalty_compensation
int mv[2][4][2]
motion vectors for a macroblock first coordinate : 0 = forward 1 = backward second " : depend...
int16_t(* b_forw_mv_table)[2]
MV table (1MV per MB) forward mode B-frame encoding.
int b8_stride
2*mb_width+1 used for some 8x8 block arrays to allow simple addressing
Picture * next_picture_ptr
pointer to the next picture (for bidir pred)
struct AVCodecContext * avctx
PutBitContext pb
bit output
int quantizer_noise_shaping
static const int32_t qmat16[MAT_SIZE]
common internal api header.
int mb_stride
mb_width+1 used for some arrays to allow simple addressing of left & top MBs without sig11 ...
int adaptive_quant
use adaptive quantization
Picture last_picture
copy of the previous picture structure.
Picture * last_picture_ptr
pointer to the previous picture.
float rc_qsquish
ratecontrol qmin qmax limiting method 0-> clipping, 1-> use a nice continuous function to limit qscal...
int64_t reordered_pts
reordered pts to be used as dts for the next output frame when there's a delay
int ff_mpv_encode_end(AVCodecContext *avctx)
const uint8_t * chroma_qscale_table
qscale -> chroma_qscale (H.263)
int ff_mpv_common_frame_size_change(MpegEncContext *s)
Core video DSP helper functions.
void(* dct_unquantize_mpeg1_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
H264ChromaContext h264chroma
int16_t(* blocks)[12][64]
int last_bits
temp var used for calculating the above vars
void ff_mpv_encode_init_x86(MpegEncContext *s)
int drop_frame_timecode
timecode is in drop frame format.
int resync_mb_y
y position of last resync marker
int16_t(* block)[64]
points to one of the following blocks
ParseContext parse_context
int64_t bit_rate
wanted bit rate
PutBitContext tex_pb
used for data partitioned VOPs
Picture next_picture
copy of the next picture structure.
Picture ** reordered_input_picture
pointer to the next pictures in coded order for encoding
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
int chroma_qscale
chroma QP
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
void(* dct_unquantize_mpeg2_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
int(* fast_dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
uint16_t intra_matrix[64]
matrix transmitted in the bitstream
void ff_mpv_report_decode_progress(MpegEncContext *s)
int rv10_version
RV10 version: 0 or 3.
int workaround_bugs
workaround bugs in encoders which cannot be detected automatically
ScanTable inter_scantable
if inter == intra then intra should be used to reduce the cache usage
int h263_long_vectors
use horrible H.263v1 long vector mode
int inter_quant_bias
bias for the quantizer
int(* dct_quantize)(struct MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow)
int16_t(* b_direct_mv_table_base)[2]
int b_code
backward MV resolution for B-frames (MPEG-4)
int h263_aic_dir
AIC direction: 0 = left, 1 = top.
int ff_mpv_encode_picture(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
AVTimecode tc
timecode context
void ff_mpv_common_defaults(MpegEncContext *s)
Set the given MpegEncContext to common defaults (same for encoding and decoding). ...
This structure stores compressed data.
unsigned int lambda
Lagrange multiplier used in rate distortion.
uint16_t pb_time
time distance between the last b and p,s,i frame
int next_lambda
next lambda used for retrying to encode a frame