diff options
Diffstat (limited to 'libavcodec/h264.h')
| -rw-r--r-- | libavcodec/h264.h | 59 |
1 files changed, 43 insertions, 16 deletions
diff --git a/libavcodec/h264.h b/libavcodec/h264.h index 3ef8420ef6..ed07ad6778 100644 --- a/libavcodec/h264.h +++ b/libavcodec/h264.h @@ -2,20 +2,20 @@ * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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 2.1 of the License, or (at your option) any later version. * - * Libav 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 Libav; 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 */ @@ -46,6 +46,8 @@ #define MAX_DELAYED_PIC_COUNT 16 +#define MAX_MBPAIR_SIZE (256*1024) // a tighter bound could be calculated if someone cares about a few bytes + /* Compiling in interlaced support reduces the speed * of progressive decoding by about 2%. */ #define ALLOW_INTERLACE @@ -85,6 +87,7 @@ #define CABAC(h) h->pps.cabac #endif +#define CHROMA(h) (h->sps.chroma_format_idc) #define CHROMA422(h) (h->sps.chroma_format_idc == 2) #define CHROMA444(h) (h->sps.chroma_format_idc == 3) @@ -95,7 +98,7 @@ #define IS_REF0(a) ((a) & MB_TYPE_REF0) #define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT) -#define QP_MAX_NUM (51 + 2 * 6) // The maximum supported qp +#define QP_MAX_NUM (51 + 6*6) // The maximum supported qp /* NAL unit types */ enum { @@ -122,6 +125,7 @@ enum { typedef enum { SEI_BUFFERING_PERIOD = 0, ///< buffering period (H.264, D.1.1) SEI_TYPE_PIC_TIMING = 1, ///< picture timing + SEI_TYPE_USER_DATA_ITU_T_T35 = 4, ///< user data registered by ITU-T Recommendation T.35 SEI_TYPE_USER_DATA_UNREGISTERED = 5, ///< unregistered user data SEI_TYPE_RECOVERY_POINT = 6 ///< recovery point (frame # to decoder sync) } SEI_Type; @@ -224,7 +228,7 @@ typedef struct PPS { int transform_8x8_mode; ///< transform_8x8_mode_flag uint8_t scaling_matrix4[6][16]; uint8_t scaling_matrix8[6][64]; - uint8_t chroma_qp_table[2][64]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table + uint8_t chroma_qp_table[2][QP_MAX_NUM+1]; ///< pre-scaled (with chroma_qp_index_offset) version of qp_table int chroma_qp_diff; } PPS; @@ -255,7 +259,6 @@ typedef struct MMCO { */ typedef struct H264Context { AVCodecContext *avctx; - DSPContext dsp; VideoDSPContext vdsp; H264DSPContext h264dsp; H264ChromaContext h264chroma; @@ -263,6 +266,7 @@ typedef struct H264Context { MotionEstContext me; ParseContext parse_context; GetBitContext gb; + DSPContext dsp; ERContext er; Picture *DPB; @@ -445,12 +449,12 @@ typedef struct H264Context { uint8_t field_scan[16]; uint8_t field_scan8x8[64]; uint8_t field_scan8x8_cavlc[64]; - const uint8_t *zigzag_scan_q0; - const uint8_t *zigzag_scan8x8_q0; - const uint8_t *zigzag_scan8x8_cavlc_q0; - const uint8_t *field_scan_q0; - const uint8_t *field_scan8x8_q0; - const uint8_t *field_scan8x8_cavlc_q0; + uint8_t zigzag_scan_q0[16]; + uint8_t zigzag_scan8x8_q0[64]; + uint8_t zigzag_scan8x8_cavlc_q0[64]; + uint8_t field_scan_q0[16]; + uint8_t field_scan8x8_q0[64]; + uint8_t field_scan8x8_cavlc_q0[64]; int x264_build; @@ -547,7 +551,7 @@ typedef struct H264Context { struct H264Context *thread_context[MAX_THREADS]; /** - * current slice number, used to initalize slice_num of each thread/context + * current slice number, used to initialize slice_num of each thread/context */ int current_slice; @@ -570,6 +574,7 @@ typedef struct H264Context { enum AVPictureType pict_type; int last_slice_type; + unsigned int last_ref_count[2]; /** @} */ /** @@ -610,6 +615,18 @@ typedef struct H264Context { * frames. */ int sei_recovery_frame_cnt; + /** + * recovery_frame is the frame_num at which the next frame should + * be fully constructed. + * + * Set to -1 when not expecting a recovery point. + */ + int recovery_frame; + + /** + * Are the SEI recovery points looking valid. + */ + int valid_recovery_point; int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag @@ -620,16 +637,26 @@ typedef struct H264Context { int cur_chroma_format_idc; uint8_t *bipred_scratchpad; + + int16_t slice_row[MAX_SLICES]; ///< to detect when MAX_SLICES is too low + + int sync; ///< did we had a keyframe or recovery point + + uint8_t parse_history[4]; + int parse_history_count; + int parse_last_mb; uint8_t *edge_emu_buffer; int16_t *dc_val_base; + uint8_t *visualization_buffer[3]; ///< temporary buffer vor MV visualization + AVBufferPool *qscale_table_pool; AVBufferPool *mb_type_pool; AVBufferPool *motion_val_pool; AVBufferPool *ref_index_pool; } H264Context; -extern const uint8_t ff_h264_chroma_qp[3][QP_MAX_NUM + 1]; ///< One chroma qp table for each supported bit depth (8, 9, 10). +extern const uint8_t ff_h264_chroma_qp[7][QP_MAX_NUM + 1]; ///< One chroma qp table for each possible bit depth (8-14). extern const uint16_t ff_h264_mb_sizes[4]; /** @@ -712,7 +739,7 @@ int ff_h264_check_intra4x4_pred_mode(H264Context *h); int ff_h264_check_intra_pred_mode(H264Context *h, int mode, int is_chroma); void ff_h264_hl_decode_mb(H264Context *h); -int ff_h264_decode_extradata(H264Context *h); +int ff_h264_decode_extradata(H264Context *h, const uint8_t *buf, int size); int ff_h264_decode_init(AVCodecContext *avctx); void ff_h264_decode_init_vlc(void); |