* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
* Copyright (c) 2002-2004 Michael Niedermayer
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* mpegvideo header.
*/
-#ifndef AVCODEC_MPEGVIDEO_H
-#define AVCODEC_MPEGVIDEO_H
+#ifndef FFMPEG_MPEGVIDEO_H
+#define FFMPEG_MPEGVIDEO_H
#include "dsputil.h"
#include "bitstream.h"
+#include "ratecontrol.h"
+#include "parser.h"
#define FRAME_SKIPPED 100 ///< return value for header parsers if frame is not coded
#define INPLACE_OFFSET 16
-typedef struct Predictor{
- double coeff;
- double count;
- double decay;
-} Predictor;
-
-typedef struct RateControlEntry{
- int pict_type;
- float qscale;
- int mv_bits;
- int i_tex_bits;
- int p_tex_bits;
- int misc_bits;
- int header_bits;
- uint64_t expected_bits;
- int new_pict_type;
- float new_qscale;
- int mc_mb_var_sum;
- int mb_var_sum;
- int i_count;
- int skip_count;
- int f_code;
- int b_code;
-}RateControlEntry;
-
-/**
- * rate control context.
- */
-typedef struct RateControlContext{
- FILE *stats_file;
- int num_entries; ///< number of RateControlEntries
- RateControlEntry *entry;
- double buffer_index; ///< amount of bits in the video/audio buffer
- Predictor pred[5];
- double short_term_qsum; ///< sum of recent qscales
- double short_term_qcount; ///< count of recent qscales
- double pass1_rc_eq_output_sum;///< sum of the output of the rc equation, this is used for normalization
- double pass1_wanted_bits; ///< bits which should have been outputed by the pass1 code (including complexity init)
- double last_qscale;
- double last_qscale_for[5]; ///< last qscale for a specific pict type, used for max_diff & ipb factor stuff
- int last_mc_mb_var_sum;
- int last_mb_var_sum;
- uint64_t i_cplx_sum[5];
- uint64_t p_cplx_sum[5];
- uint64_t mv_bits_sum[5];
- uint64_t qscale_sum[5];
- int frame_count[5];
- int last_non_b_pict_type;
-
- void *non_lavc_opaque; ///< context for non lavc rc code (for example xvid)
- float dry_run_qscale; ///< for xvid rc
- int last_picture_number; ///< for xvid rc
-}RateControlContext;
+/* Start codes. */
+#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
/**
* Scantable.
#define IS_ACPRED(a) ((a)&MB_TYPE_ACPRED)
#define IS_QUANT(a) ((a)&MB_TYPE_QUANT)
#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0<<((part)+2*(list))))
-#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note doesnt work if subMBs
+#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0|MB_TYPE_P1L0)<<(2*(list)))) ///< does this mb use listX, note does not work if subMBs
#define HAS_CBP(a) ((a)&MB_TYPE_CBP)
int field_poc[2]; ///< h264 top/bottom POC
int poc; ///< h264 frame POC
- int frame_num; ///< h264 frame_num
- int pic_id; ///< h264 pic_num or long_term_pic_idx
+ int frame_num; ///< h264 frame_num (raw frame_num from slice header)
+ int pic_id; /**< h264 pic_num (short -> no wrap version of pic_num,
+ pic_num & max_pic_num; long -> long_pic_num) */
int long_ref; ///< 1->long term reference 0->short term reference
int ref_poc[2][16]; ///< h264 POCs of the frames used as reference
int ref_count[2]; ///< number of entries in ref_poc
int b_frame_score; /* */
} Picture;
-typedef struct ParseContext{
- uint8_t *buffer;
- int index;
- int last_index;
- unsigned int buffer_size;
- uint32_t state; ///< contains the last few bytes in MSB order
- int frame_start_found;
- int overread; ///< the number of bytes which where irreversibly read from the next frame
- int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
-} ParseContext;
-
struct MpegEncContext;
/**
typedef struct MotionEstContext{
AVCodecContext *avctx;
int skip; ///< set if ME is skipped for the current MB
- int co_located_mv[4][2]; ///< mv from last p frame for direct mode ME
+ int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
int direct_basis_mv[4][2];
- uint8_t *scratchpad; ///< data area for the me algo, so that the ME doesnt need to malloc/free
+ uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free
uint8_t *best_mb;
uint8_t *temp_mb[2];
uint8_t *temp;
uint32_t *score_map; ///< map to store the scores
int map_generation;
int pre_penalty_factor;
- int penalty_factor;
+ int penalty_factor; /*!< an estimate of the bits required to
+ code a given mv value, e.g. (1,0) takes
+ more bits than (0,0). We have to
+ estimate whether any reduction in
+ residual is worth the extra bits. */
int sub_penalty_factor;
int mb_penalty_factor;
int flags;
int chroma_elim_threshold;
int strict_std_compliance; ///< strictly follow the std (MPEG4, ...)
int workaround_bugs; ///< workaround bugs in encoders which cannot be detected automatically
+ int codec_tag; ///< internal codec_tag upper case converted from avctx codec_tag
+ int stream_codec_tag; ///< internal stream_codec_tag upper case converted from avctx stream_codec_tag
/* the following fields are managed internally by the encoder */
/** bit output */
/* sequence parameters */
int context_initialized;
- int input_picture_number; ///< used to set pic->display_picture_number, shouldnt be used for/by anything else
- int coded_picture_number; ///< used to set pic->coded_picture_number, shouldnt be used for/by anything else
+ int input_picture_number; ///< used to set pic->display_picture_number, should not be used for/by anything else
+ int coded_picture_number; ///< used to set pic->coded_picture_number, should not be used for/by anything else
int picture_number; //FIXME remove, unclear definition
int picture_in_gop_number; ///< 0-> first pic in gop, ...
int b_frames_since_non_b; ///< used for encoding, relative to not yet reordered input
int qscale; ///< QP
int chroma_qscale; ///< chroma QP
- int lambda; ///< lagrange multipler used in rate distortion
- int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
+ unsigned int lambda; ///< lagrange multipler used in rate distortion
+ unsigned int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT
int *lambda_table;
int adaptive_quant; ///< use adaptive quantization
int dquant; ///< qscale difference to prev qscale
int dropable;
int frame_rate_index;
int last_lambda_for[5]; ///< last lambda for a specific pict type
+ int skipdct; ///< skip dct and code zero residual
/* motion compensation */
int unrestricted_mv; ///< mv can point outside of the coded picture
uint8_t (*b_field_select_table[2][2]);
int me_method; ///< ME algorithm
int mv_dir;
-#define MV_DIR_BACKWARD 1
-#define MV_DIR_FORWARD 2
+#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)
int mv_type;
#define MV_TYPE_16X16 0 ///< 1 vector for the whole mb
MotionEstContext me;
int no_rounding; /**< apply no rounding to motion compensation (MPEG4, msmpeg4, ...)
- for b-frames rounding mode is allways 0 */
+ for b-frames rounding mode is always 0 */
int hurry_up; /**< when set to 1 during decoding, b frames will be skipped
when set to 2 idct/dequant will be skipped too */
#define CANDIDATE_MB_TYPE_BACKWARD_I 0x400
#define CANDIDATE_MB_TYPE_BIDIR_I 0x800
+#define CANDIDATE_MB_TYPE_DIRECT0 0x1000
+
int block_index[6]; ///< index to current MB in block based arrays with edges
int block_wrap[6];
uint8_t *dest[3];
int64_t wanted_bits;
int64_t total_bits;
int frame_bits; ///< bits used for the current frame
+ int next_lambda; ///< next lambda used for retrying to encode a frame
RateControlContext rc_context; ///< contains stuff only accessed in ratecontrol.c
/* statistics, used for 2-pass encoding */
struct MJpegContext *mjpeg_ctx;
int mjpeg_vsample[3]; ///< vertical sampling factors, default = {2, 1, 1}
int mjpeg_hsample[3]; ///< horizontal sampling factors, default = {2, 1, 1}
- int mjpeg_write_tables; ///< do we want to have quantisation- and huffmantables in the jpeg file ?
- int mjpeg_data_only_frames; ///< frames only with SOI, SOS and EOI markers
/* MSMPEG4 specific */
int mv_table_index;
} MpegEncContext;
-int DCT_common_init(MpegEncContext *s);
void MPV_decode_defaults(MpegEncContext *s);
int MPV_common_init(MpegEncContext *s);
void MPV_common_end(MpegEncContext *s);
int MPV_encode_init(AVCodecContext *avctx);
int MPV_encode_end(AVCodecContext *avctx);
int MPV_encode_picture(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data);
-#ifdef HAVE_MMX
void MPV_common_init_mmx(MpegEncContext *s);
-#endif
-#ifdef ARCH_ALPHA
void MPV_common_init_axp(MpegEncContext *s);
-#endif
-#ifdef HAVE_MLIB
void MPV_common_init_mlib(MpegEncContext *s);
-#endif
-#ifdef HAVE_MMI
void MPV_common_init_mmi(MpegEncContext *s);
-#endif
-#ifdef ARCH_ARMV4L
void MPV_common_init_armv4l(MpegEncContext *s);
-#endif
-#ifdef ARCH_POWERPC
-void MPV_common_init_ppc(MpegEncContext *s);
-#endif
+void MPV_common_init_altivec(MpegEncContext *s);
extern void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
-void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length);
void ff_clean_intra_table_entries(MpegEncContext *s);
void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
void ff_draw_horiz_band(MpegEncContext *s, int y, int h);
void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h);
-#define END_NOT_FOUND -100
-int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size);
-void ff_parse_close(AVCodecParserContext *s);
void ff_mpeg_flush(AVCodecContext *avctx);
void ff_print_debug_info(MpegEncContext *s, AVFrame *pict);
-void ff_write_quant_matrix(PutBitContext *pb, int16_t *matrix);
+void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
int ff_find_unused_picture(MpegEncContext *s, int shared);
void ff_denoise_dct(MpegEncContext *s, DCTELEM *block);
void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
void ff_er_frame_end(MpegEncContext *s);
void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status);
+int ff_dct_common_init(MpegEncContext *s);
+void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
+ const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra);
extern enum PixelFormat ff_yuv420p_list[2];
return bits - last;
}
+static inline int ff_h263_round_chroma(int x){
+ static const uint8_t h263_chroma_roundtab[16] = {
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
+ };
+ return h263_chroma_roundtab[x & 0xf] + (x >> 3);
+}
+
/* motion_est.c */
void ff_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y);
inline 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 inline ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
+inline int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
int ref_index, int size, int h, int add_rate);
/* mpeg12.c */
-extern const int16_t ff_mpeg1_default_intra_matrix[64];
-extern const int16_t ff_mpeg1_default_non_intra_matrix[64];
+extern const uint16_t ff_mpeg1_default_intra_matrix[64];
+extern const uint16_t ff_mpeg1_default_non_intra_matrix[64];
extern const uint8_t ff_mpeg1_dc_scale_table[128];
+extern const AVRational ff_frame_rate_tab[];
void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
void mpeg1_encode_mb(MpegEncContext *s,
void ff_mpeg1_clean_buffers(MpegEncContext *s);
int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
-
-/** RLTable. */
-typedef struct RLTable {
- int n; ///< number of entries of table_vlc minus 1
- int last; ///< number of values for last = 0
- const uint16_t (*table_vlc)[2];
- const int8_t *table_run;
- const int8_t *table_level;
- uint8_t *index_run[2]; ///< encoding only
- int8_t *max_level[2]; ///< encoding & decoding
- int8_t *max_run[2]; ///< encoding & decoding
- VLC vlc; ///< decoding only deprected FIXME remove
- RL_VLC_ELEM *rl_vlc[32]; ///< decoding only
-} RLTable;
-
-void init_rl(RLTable *rl, int use_static);
-void init_vlc_rl(RLTable *rl, int use_static);
-
-static inline int get_rl_index(const RLTable *rl, int last, int run, int level)
-{
- int index;
- index = rl->index_run[last][run];
- if (index >= rl->n)
- return rl->n;
- if (level > rl->max_level[last][run])
- return rl->n;
- return index + level - 1;
-}
+#include "rl.h"
extern const uint8_t ff_mpeg4_y_dc_scale_table[32];
extern const uint8_t ff_mpeg4_c_dc_scale_table[32];
int motion_x, int motion_y);
void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number);
void ff_h261_encode_init(MpegEncContext *s);
+int ff_h261_get_picture_format(int width, int height);
/* h263.c, h263dec.c */
int *px, int *py);
void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
int dir);
-void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
+void ff_set_mpeg4_time(MpegEncContext * s);
void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
-#ifdef CONFIG_ENCODERS
void h263_encode_init(MpegEncContext *s);
-#else
-static void h263_encode_init(MpegEncContext *s) {assert(0);}
-#endif
void h263_decode_init_vlc(MpegEncContext *s);
int h263_decode_picture_header(MpegEncContext *s);
int ff_h263_decode_gob_header(MpegEncContext *s);
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
int ff_h263_resync(MpegEncContext *s);
int ff_h263_get_gob_height(MpegEncContext *s);
+void ff_mpeg4_init_direct_mv(MpegEncContext *s);
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
-int ff_h263_round_chroma(int x);
void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code);
-int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
/* rv10.c */
DCTELEM block[6][64],
int motion_x, int motion_y);
-/* mjpeg.c */
-int mjpeg_init(MpegEncContext *s);
-void mjpeg_close(MpegEncContext *s);
-void mjpeg_encode_mb(MpegEncContext *s,
- DCTELEM block[6][64]);
-void mjpeg_picture_header(MpegEncContext *s);
-void mjpeg_picture_trailer(MpegEncContext *s);
-void ff_mjpeg_stuffing(PutBitContext * pbc);
-
-
-/* rate control */
-int ff_rate_control_init(MpegEncContext *s);
-float ff_rate_estimate_qscale(MpegEncContext *s, int dry_run);
-void ff_write_pass1_stats(MpegEncContext *s);
-void ff_rate_control_uninit(MpegEncContext *s);
-double ff_eval(char *s, double *const_value, const char **const_name,
- double (**func1)(void *, double), const char **func1_name,
- double (**func2)(void *, double, double), char **func2_name,
- void *opaque);
-int ff_vbv_update(MpegEncContext *s, int frame_size);
-void ff_get_2pass_fcode(MpegEncContext *s);
-
-int ff_xvid_rate_control_init(MpegEncContext *s);
-void ff_xvid_rate_control_uninit(MpegEncContext *s);
-float ff_xvid_rate_estimate_qscale(MpegEncContext *s, int dry_run);
-
-#endif /* AVCODEC_MPEGVIDEO_H */
+#endif /* FFMPEG_MPEGVIDEO_H */
+
projects / ffmpeg / blobdiff