*
* Copyright (C) 2010 David Conrad
* Copyright (C) 2010 Ronald S. Bultje
- * Copyright (C) 2010 Jason Garrett-Glaser
+ * Copyright (C) 2010 Fiona Glaser
* Copyright (C) 2012 Daniel Kang
*
* This file is part of Libav.
#ifndef AVCODEC_VP8_H
#define AVCODEC_VP8_H
+#include "libavutil/buffer.h"
+
+#include "h264pred.h"
+#include "thread.h"
#include "vp56.h"
-#include "vp56data.h"
#include "vp8dsp.h"
-#include "h264pred.h"
+
#if HAVE_PTHREADS
-#include <pthread.h>
#elif HAVE_W32THREADS
-#include "w32pthreads.h"
+# include "compat/w32pthreads.h"
#endif
#define VP8_MAX_QUANT 127
typedef struct VP8Macroblock {
uint8_t skip;
- // todo: make it possible to check for at least (i4x4 or split_mv)
+ // TODO: make it possible to check for at least (i4x4 or split_mv)
// in one op. are others needed?
uint8_t mode;
uint8_t ref_frame;
uint8_t chroma_pred_mode;
uint8_t segment;
uint8_t intra4x4_pred_mode_mb[16];
- uint8_t intra4x4_pred_mode_top[4];
+ DECLARE_ALIGNED(4, uint8_t, intra4x4_pred_mode_top)[4];
VP56mv mv;
VP56mv bmv[16];
} VP8Macroblock;
int thread_nr;
#if HAVE_THREADS
pthread_mutex_t lock;
- pthread_cond_t cond;
+ pthread_cond_t cond;
#endif
int thread_mb_pos; // (mb_y << 16) | (mb_x & 0xFFFF)
int wait_mb_pos; // What the current thread is waiting on.
- uint8_t *edge_emu_buffer;
+
+#define EDGE_EMU_LINESIZE 32
+ DECLARE_ALIGNED(16, uint8_t, edge_emu_buffer)[21 * EDGE_EMU_LINESIZE];
VP8FilterStrength *filter_strength;
} VP8ThreadData;
+typedef struct VP8Frame {
+ ThreadFrame tf;
+ AVBufferRef *seg_map;
+
+ AVBufferRef *hwaccel_priv_buf;
+ void *hwaccel_picture_private;
+} VP8Frame;
+
#define MAX_THREADS 8
typedef struct VP8Context {
VP8ThreadData *thread_data;
AVCodecContext *avctx;
- AVFrame *framep[4];
- AVFrame *next_framep[4];
- AVFrame *curframe;
- AVFrame *prev_frame;
+ enum AVPixelFormat pix_fmt;
+
+ VP8Frame *framep[4];
+ VP8Frame *next_framep[4];
+ VP8Frame *curframe;
+ VP8Frame *prev_frame;
uint16_t mb_width; /* number of horizontal MB */
uint16_t mb_height; /* number of vertical MB */
- int linesize;
- int uvlinesize;
+ ptrdiff_t linesize;
+ ptrdiff_t uvlinesize;
uint8_t keyframe;
uint8_t deblock_filter;
uint8_t enabled;
uint8_t absolute_vals;
uint8_t update_map;
+ uint8_t update_feature_data;
int8_t base_quant[4];
int8_t filter_level[4]; ///< base loop filter level
} segmentation;
int16_t chroma_qmul[2];
} qmat[4];
+ // Raw quantisation values, which may be needed by hwaccel decode.
+ struct {
+ int yac_qi;
+ int ydc_delta;
+ int y2dc_delta;
+ int y2ac_delta;
+ int uvdc_delta;
+ int uvac_delta;
+ } quant;
+
struct {
uint8_t enabled; ///< whether each mb can have a different strength based on mode/ref
+ uint8_t update;
/**
* filter strength adjustment for the following macroblock modes:
* [7] - split mv
* i16x16 modes never have any adjustment
*/
- int8_t mode[VP8_MVMODE_SPLIT+1];
+ int8_t mode[VP8_MVMODE_SPLIT + 1];
/**
* filter strength adjustment for macroblocks that reference:
int8_t ref[4];
} lf_delta;
- uint8_t (*top_border)[16+8+8];
+ uint8_t (*top_border)[16 + 8 + 8];
uint8_t (*top_nnz)[9];
VP56RangeCoder c; ///< header context, includes mb modes and motion vectors
+ /* This contains the entropy coder state at the end of the header
+ * block, in the form specified by the standard. For use by
+ * hwaccels, so that a hardware decoder has the information to
+ * start decoding at the macroblock layer.
+ */
+ struct {
+ const uint8_t *input;
+ uint32_t range;
+ uint32_t value;
+ int bit_count;
+ } coder_state_at_header_end;
+
+ int header_partition_size;
+
/**
* These are all of the updatable probabilities for binary decisions.
- * They are only implictly reset on keyframes, making it quite likely
+ * They are only implicitly reset on keyframes, making it quite likely
* for an interframe to desync if a prior frame's header was corrupt
* or missing outright!
*/
uint8_t golden;
uint8_t pred16x16[4];
uint8_t pred8x8c[3];
- uint8_t token[4][16][3][NUM_DCT_TOKENS-1];
+ uint8_t token[4][16][3][NUM_DCT_TOKENS - 1];
uint8_t mvc[2][19];
+ uint8_t scan[16];
} prob[2];
VP8Macroblock *macroblocks_base;
*/
int num_coeff_partitions;
VP56RangeCoder coeff_partition[8];
+ int coeff_partition_size[8];
VideoDSPContext vdsp;
VP8DSPContext vp8dsp;
H264PredContext hpc;
vp8_mc_func put_pixels_tab[3][3][3];
- AVFrame frames[5];
+ VP8Frame frames[5];
+
+ uint8_t colorspace; ///< 0 is the only value allowed (meaning bt601)
+ uint8_t fullrange; ///< whether we can skip clamping in dsp functions
- /**
- * A list of segmentation_map buffers that are to be free()'ed in
- * the next decoding iteration. We can't free() them right away
- * because the map may still be used by subsequent decoding threads.
- * Unused if frame threading is off.
- */
- uint8_t *segmentation_maps[5];
- int num_maps_to_be_freed;
- int maps_are_invalid;
int num_jobs;
/**
* This describes the macroblock memory layout.
* 0 -> Only width+height*2+1 macroblocks allocated (frame/single thread).
- * 1 -> Macroblocks for entire frame alloced (sliced thread).
+ * 1 -> Macroblocks for entire frame allocated (sliced thread).
*/
int mb_layout;
+
+ /**
+ * Fade bit present in bitstream (VP7)
+ */
+ int fade_present;
+
+ /**
+ * Interframe DC prediction (VP7)
+ * [0] VP56_FRAME_PREVIOUS
+ * [1] VP56_FRAME_GOLDEN
+ */
+ uint16_t inter_dc_pred[2][2];
+
+ /**
+ * Macroblock features (VP7)
+ */
+ uint8_t feature_enabled[4];
+ uint8_t feature_present_prob[4];
+ uint8_t feature_index_prob[4][3];
+ uint8_t feature_value[4][4];
} VP8Context;
+int ff_vp8_decode_init(AVCodecContext *avctx);
+
+int ff_vp8_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+ AVPacket *avpkt);
+
+int ff_vp8_decode_free(AVCodecContext *avctx);
+
#endif /* AVCODEC_VP8_H */
projects / ffmpeg / blobdiff