-/**
+/*
* VP8 compatible video decoder
*
* 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 "compat/w32pthreads.h"
+#endif
#define VP8_MAX_QUANT 127
VP8_SPLITMVMODE_NONE, ///< (only used in prediction) no split MVs
};
-typedef struct {
+typedef struct VP8FilterStrength {
uint8_t filter_level;
uint8_t inner_limit;
uint8_t inner_filter;
} VP8FilterStrength;
-typedef struct {
+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 partitioning;
+ uint8_t chroma_pred_mode;
+ uint8_t segment;
+ uint8_t intra4x4_pred_mode_mb[16];
+ DECLARE_ALIGNED(4, uint8_t, intra4x4_pred_mode_top)[4];
VP56mv mv;
VP56mv bmv[16];
} VP8Macroblock;
-typedef struct {
+typedef struct VP8ThreadData {
+ DECLARE_ALIGNED(16, int16_t, block)[6][4][16];
+ DECLARE_ALIGNED(16, int16_t, block_dc)[16];
+ /**
+ * This is the index plus one of the last non-zero coeff
+ * for each of the blocks in the current macroblock.
+ * So, 0 -> no coeffs
+ * 1 -> dc-only (special transform)
+ * 2+-> full transform
+ */
+ DECLARE_ALIGNED(16, uint8_t, non_zero_count_cache)[6][4];
+ /**
+ * For coeff decode, we need to know whether the above block had non-zero
+ * coefficients. This means for each macroblock, we need data for 4 luma
+ * blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9
+ * per macroblock. We keep the last row in top_nnz.
+ */
+ DECLARE_ALIGNED(8, uint8_t, left_nnz)[9];
+ int thread_nr;
+#if HAVE_THREADS
+ pthread_mutex_t lock;
+ 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.
+
+#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;
+} VP8Frame;
+
+#define MAX_THREADS 8
+typedef struct VP8Context {
+ VP8ThreadData *thread_data;
AVCodecContext *avctx;
- AVFrame *framep[4];
- AVFrame *next_framep[4];
- uint8_t *edge_emu_buffer;
+ 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 */
uint8_t keyframe;
uint8_t deblock_filter;
uint8_t mbskip_enabled;
- uint8_t segment; ///< segment of the current macroblock
- uint8_t chroma_pred_mode; ///< 8x8c pred mode of the current macroblock
uint8_t profile;
VP56mv mv_min;
VP56mv mv_max;
} filter;
VP8Macroblock *macroblocks;
- VP8FilterStrength *filter_strength;
uint8_t *intra4x4_pred_mode_top;
uint8_t intra4x4_pred_mode_left[4];
* [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;
- /**
- * Cache of the top row needed for intra prediction
- * 16 for luma, 8 for each chroma plane
- */
- uint8_t (*top_border)[16+8+8];
-
- /**
- * For coeff decode, we need to know whether the above block had non-zero
- * coefficients. This means for each macroblock, we need data for 4 luma
- * blocks, 2 u blocks, 2 v blocks, and the luma dc block, for a total of 9
- * per macroblock. We keep the last row in top_nnz.
- */
+ uint8_t (*top_border)[16 + 8 + 8];
uint8_t (*top_nnz)[9];
- DECLARE_ALIGNED(8, uint8_t, left_nnz)[9];
- /**
- * This is the index plus one of the last non-zero coeff
- * for each of the blocks in the current macroblock.
- * So, 0 -> no coeffs
- * 1 -> dc-only (special transform)
- * 2+-> full transform
- */
- DECLARE_ALIGNED(16, uint8_t, non_zero_count_cache)[6][4];
VP56RangeCoder c; ///< header context, includes mb modes and motion vectors
- DECLARE_ALIGNED(16, DCTELEM, block)[6][4][16];
- DECLARE_ALIGNED(16, DCTELEM, block_dc)[16];
- uint8_t intra4x4_pred_mode_mb[16];
/**
* These are all of the updatable probabilities for binary decisions.
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];
- DSPContext dsp;
+ 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
+
+ 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).
+ */
+ 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];
/**
- * 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.
+ * Macroblock features (VP7)
*/
- uint8_t *segmentation_maps[5];
- int num_maps_to_be_freed;
- int maps_are_invalid;
+ 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