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authorAnton Khirnov <anton@khirnov.net>2013-02-03 11:10:05 +0100
committerAnton Khirnov <anton@khirnov.net>2013-02-15 16:35:16 +0100
commit2c541554076cc8a72e7145d4da30389ca763f32f (patch)
treeb404051a202e1ffffe4ecee2df1b89f9f92a70f5 /libavcodec/h264.h
parent1d0feb5d1ac04d187b335f0e8d411c9f40b3a885 (diff)
downloadffmpeg-2c541554076cc8a72e7145d4da30389ca763f32f.tar.gz
h264: deMpegEncContextize
Most of the changes are just trivial are just trivial replacements of fields from MpegEncContext with equivalent fields in H264Context. Everything in h264* other than h264.c are those trivial changes. The nontrivial parts are: 1) extracting a simplified version of the frame management code from mpegvideo.c. We don't need last/next_picture anymore, since h264 uses its own more complex system already and those were set only to appease the mpegvideo parts. 2) some tables that need to be allocated/freed in appropriate places. 3) hwaccels -- mostly trivial replacements. for dxva, the draw_horiz_band() call is moved from ff_dxva2_common_end_frame() to per-codec end_frame() callbacks, because it's now different for h264 and MpegEncContext-based decoders. 4) svq3 -- it does not use h264 complex reference system, so I just added some very simplistic frame management instead and dropped the use of ff_h264_frame_start(). Because of this I also had to move some initialization code to svq3. Additional fixes for chroma format and bit depth changes by Janne Grunau <janne-libav@jannau.net> Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/h264.h')
-rw-r--r--libavcodec/h264.h70
1 files changed, 57 insertions, 13 deletions
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index c4addbef48..45c134e877 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -30,6 +30,7 @@
#include "libavutil/intreadwrite.h"
#include "cabac.h"
+#include "get_bits.h"
#include "mpegvideo.h"
#include "h264chroma.h"
#include "h264dsp.h"
@@ -60,7 +61,7 @@
#define MB_MBAFF h->mb_mbaff
#define MB_FIELD h->mb_field_decoding_flag
#define FRAME_MBAFF h->mb_aff_frame
-#define FIELD_PICTURE (s->picture_structure != PICT_FRAME)
+#define FIELD_PICTURE (h->picture_structure != PICT_FRAME)
#define LEFT_MBS 2
#define LTOP 0
#define LBOT 1
@@ -250,15 +251,42 @@ typedef struct MMCO {
* H264Context
*/
typedef struct H264Context {
- MpegEncContext s;
+ AVCodecContext *avctx;
+ DSPContext dsp;
+ VideoDSPContext vdsp;
H264DSPContext h264dsp;
H264ChromaContext h264chroma;
H264QpelContext h264qpel;
+ MotionEstContext me;
+ ParseContext parse_context;
+ GetBitContext gb;
+ ERContext er;
+
+ Picture *DPB;
+ Picture *cur_pic_ptr;
+ Picture cur_pic;
+ int picture_count;
+ int picture_range_start, picture_range_end;
+
int pixel_shift; ///< 0 for 8-bit H264, 1 for high-bit-depth H264
int chroma_qp[2]; // QPc
int qp_thresh; ///< QP threshold to skip loopfilter
+ int width, height;
+ int linesize, uvlinesize;
+ int chroma_x_shift, chroma_y_shift;
+
+ int qscale;
+ int droppable;
+ int data_partitioning;
+ int coded_picture_number;
+ int low_delay;
+
+ int context_initialized;
+ int flags;
+ int workaround_bugs;
+
int prev_mb_skipped;
int next_mb_skipped;
@@ -348,6 +376,8 @@ typedef struct H264Context {
int mb_aff_frame;
int mb_field_decoding_flag;
int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
+ int picture_structure;
+ int first_field;
DECLARE_ALIGNED(8, uint16_t, sub_mb_type)[4];
@@ -424,6 +454,13 @@ typedef struct H264Context {
int x264_build;
+ int mb_x, mb_y;
+ int resync_mb_x;
+ int resync_mb_y;
+ int mb_skip_run;
+ int mb_height, mb_width;
+ int mb_stride;
+ int mb_num;
int mb_xy;
int is_complex;
@@ -448,7 +485,8 @@ typedef struct H264Context {
int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
int got_first; ///< this flag is != 0 if we've parsed a frame
- int context_reinitialized;
+ int bit_depth_luma; ///< luma bit depth from sps to detect changes
+ int chroma_format_idc; ///< chroma format from sps to detect changes
SPS *sps_buffers[MAX_SPS_COUNT];
PPS *pps_buffers[MAX_PPS_COUNT];
@@ -521,12 +559,16 @@ typedef struct H264Context {
*/
int max_contexts;
+ int slice_context_count;
+
/**
* 1 if the single thread fallback warning has already been
* displayed, 0 otherwise.
*/
int single_decode_warning;
+ enum AVPictureType pict_type;
+
int last_slice_type;
/** @} */
@@ -578,6 +620,8 @@ typedef struct H264Context {
int cur_chroma_format_idc;
uint8_t *bipred_scratchpad;
+ uint8_t *edge_emu_buffer;
+ int16_t *dc_val_base;
} 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).
@@ -786,7 +830,7 @@ static av_always_inline int pred_intra_mode(H264Context *h, int n)
const int top = h->intra4x4_pred_mode_cache[index8 - 8];
const int min = FFMIN(left, top);
- tprintf(h->s.avctx, "mode:%d %d min:%d\n", left, top, min);
+ tprintf(h->avctx, "mode:%d %d min:%d\n", left, top, min);
if (min < 0)
return DC_PRED;
@@ -820,7 +864,7 @@ static av_always_inline void write_back_non_zero_count(H264Context *h)
AV_COPY32(&nnz[32], &nnz_cache[4 + 8 * 11]);
AV_COPY32(&nnz[36], &nnz_cache[4 + 8 * 12]);
- if (!h->s.chroma_y_shift) {
+ if (!h->chroma_y_shift) {
AV_COPY32(&nnz[24], &nnz_cache[4 + 8 * 8]);
AV_COPY32(&nnz[28], &nnz_cache[4 + 8 * 9]);
AV_COPY32(&nnz[40], &nnz_cache[4 + 8 * 13]);
@@ -829,12 +873,11 @@ static av_always_inline void write_back_non_zero_count(H264Context *h)
}
static av_always_inline void write_back_motion_list(H264Context *h,
- MpegEncContext *const s,
int b_stride,
int b_xy, int b8_xy,
int mb_type, int list)
{
- int16_t(*mv_dst)[2] = &s->current_picture.f.motion_val[list][b_xy];
+ int16_t(*mv_dst)[2] = &h->cur_pic.f.motion_val[list][b_xy];
int16_t(*mv_src)[2] = &h->mv_cache[list][scan8[0]];
AV_COPY128(mv_dst + 0 * b_stride, mv_src + 8 * 0);
AV_COPY128(mv_dst + 1 * b_stride, mv_src + 8 * 1);
@@ -855,7 +898,7 @@ static av_always_inline void write_back_motion_list(H264Context *h,
}
{
- int8_t *ref_index = &s->current_picture.f.ref_index[list][b8_xy];
+ int8_t *ref_index = &h->cur_pic.f.ref_index[list][b8_xy];
int8_t *ref_cache = h->ref_cache[list];
ref_index[0 + 0 * 2] = ref_cache[scan8[0]];
ref_index[1 + 0 * 2] = ref_cache[scan8[4]];
@@ -866,19 +909,18 @@ static av_always_inline void write_back_motion_list(H264Context *h,
static av_always_inline void write_back_motion(H264Context *h, int mb_type)
{
- MpegEncContext *const s = &h->s;
const int b_stride = h->b_stride;
- const int b_xy = 4 * s->mb_x + 4 * s->mb_y * h->b_stride; // try mb2b(8)_xy
+ const int b_xy = 4 * h->mb_x + 4 * h->mb_y * h->b_stride; // try mb2b(8)_xy
const int b8_xy = 4 * h->mb_xy;
if (USES_LIST(mb_type, 0)) {
- write_back_motion_list(h, s, b_stride, b_xy, b8_xy, mb_type, 0);
+ write_back_motion_list(h, b_stride, b_xy, b8_xy, mb_type, 0);
} else {
- fill_rectangle(&s->current_picture.f.ref_index[0][b8_xy],
+ fill_rectangle(&h->cur_pic.f.ref_index[0][b8_xy],
2, 2, 2, (uint8_t)LIST_NOT_USED, 1);
}
if (USES_LIST(mb_type, 1))
- write_back_motion_list(h, s, b_stride, b_xy, b8_xy, mb_type, 1);
+ write_back_motion_list(h, b_stride, b_xy, b8_xy, mb_type, 1);
if (h->slice_type_nos == AV_PICTURE_TYPE_B && CABAC) {
if (IS_8X8(mb_type)) {
@@ -902,4 +944,6 @@ static av_always_inline int get_dct8x8_allowed(H264Context *h)
0x0001000100010001ULL));
}
+void ff_h264_draw_horiz_band(H264Context *h, int y, int height);
+
#endif /* AVCODEC_H264_H */