* 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
*/
#include "dsputil.h"
#include "bitstream.h"
+#include "ratecontrol.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;
-
/**
* Scantable.
*/
int field_select[2][2];
int last_mv[2][2][2]; ///< last MV, used for MV prediction in MPEG1 & B-frame MPEG4
uint8_t *fcode_tab; ///< smallest fcode needed for each MV
+ int16_t direct_scale_mv[2][64]; ///< precomputed to avoid divisions in ff_mpeg4_set_direct_mv
MotionEstContext me;
uint8_t *chroma_dc_vlc_length;
#define UNI_AC_ENC_INDEX(run,level) ((run)*128 + (level))
- int coded_score[6];
+ int coded_score[8];
/** precomputed matrix (combine qscale and DCT renorm) */
int (*q_intra_matrix)[64];
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 */
int vo_type;
int vol_control_parameters; ///< does the stream contain the low_delay flag, used to workaround buggy encoders
int intra_dc_threshold; ///< QP above whch the ac VLC should be used for intra dc
+ int use_intra_dc_vlc;
PutBitContext tex_pb; ///< used for data partitioned VOPs
PutBitContext pb2; ///< used for data partitioned VOPs
int mpeg_quant;
short * pblocks[12];
DCTELEM (*block)[64]; ///< points to one of the following blocks
- DCTELEM (*blocks)[6][64]; // for HQ mode we need to keep the best block
+ DCTELEM (*blocks)[8][64]; // for HQ mode we need to keep the best block
int (*decode_mb)(struct MpegEncContext *s, DCTELEM block[6][64]); // used by some codecs to avoid a switch()
#define SLICE_OK 0
#define SLICE_ERROR -1
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);
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];
void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
int dir);
void ff_set_mpeg4_time(MpegEncContext * s, int picture_number);
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);
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);
+/* cavs.c */
+int ff_cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
#endif /* AVCODEC_MPEGVIDEO_H */
+
projects / ffmpeg / blobdiff