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authorMichael Niedermayer <michaelni@gmx.at>2012-02-16 00:49:16 +0100
committerMichael Niedermayer <michaelni@gmx.at>2012-02-16 01:34:37 +0100
commit6cb2085278bdd3ee83d5ed528d98c78756ee7277 (patch)
treeda57b6491e07c2deb9cf57e3cd595323d118c244 /libavcodec/proresdec_lgpl.c
parent8812c97b98321f82763b7c9c1363c7c1f6cace8f (diff)
parent210f72845c11fbab7b913a4f18ffd67e99d2dd4f (diff)
downloadffmpeg-6cb2085278bdd3ee83d5ed528d98c78756ee7277.tar.gz
Merge remote-tracking branch 'qatar/master'
* qatar/master: (27 commits) ppc: Add ff_ prefix to nonstatic symbols sh4: Add ff_ prefix to nonstatic symbols mpegvideo: Add ff_ prefix to nonstatic functions rtjpeg: Add ff_ prefix to nonstatic symbols rv: Add ff_ prefix to nonstatic symbols vp56: Add ff_ prefix to nonstatic symbols vorbis: Add ff_ prefix to nonstatic symbols msmpeg4: Add ff_ prefix to nonstatic symbols vc1: Add ff_ prefix to nonstatic symbols msmpeg4: Add ff_ prefixes to nonstatic symbols snow: Add ff_ prefix to nonstatic symbols mpeg12: Add ff_ prefix to nonstatic symbols mpeg4: Add ff_ prefixes to nonstatic symbols lagarith: Add ff_ prefix to lag_rac_init libavcodec: Add ff_ prefix to j_rev_dct* dsputil: Add ff_ prefix to inv_zigzag_direct16 libavcodec: Prefix fdct_ifast, fdct_ifast248 dsputil: Add ff_ prefix to the dsputil*_init* functions libavcodec: Add ff_ prefix to some nonstatic symbols vlc/rl: Add ff_ prefix to the nonstatic symbols ... Conflicts: libavcodec/Makefile libavcodec/allcodecs.c libavcodec/dnxhddec.c libavcodec/ffv1.c libavcodec/h263.h libavcodec/h263dec.c libavcodec/h264.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/nuv.c libavcodec/ppc/dsputil_ppc.c libavcodec/proresdsp.c libavcodec/svq3.c libavcodec/version.h libavformat/dv.h libavformat/dvenc.c libavformat/matroskadec.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/proresdec_lgpl.c')
-rw-r--r--libavcodec/proresdec_lgpl.c92
1 files changed, 20 insertions, 72 deletions
diff --git a/libavcodec/proresdec_lgpl.c b/libavcodec/proresdec_lgpl.c
index 33653de71a..1070193c96 100644
--- a/libavcodec/proresdec_lgpl.c
+++ b/libavcodec/proresdec_lgpl.c
@@ -34,6 +34,7 @@
#include "libavutil/intmath.h"
#include "avcodec.h"
+#include "proresdata.h"
#include "proresdsp.h"
#include "get_bits.h"
@@ -42,7 +43,10 @@ typedef struct {
int slice_num;
int x_pos, y_pos;
int slice_width;
+ int prev_slice_sf; ///< scalefactor of the previous decoded slice
DECLARE_ALIGNED(16, DCTELEM, blocks)[8 * 4 * 64];
+ DECLARE_ALIGNED(16, int16_t, qmat_luma_scaled)[64];
+ DECLARE_ALIGNED(16, int16_t, qmat_chroma_scaled)[64];
} ProresThreadData;
typedef struct {
@@ -56,9 +60,6 @@ typedef struct {
uint8_t qmat_luma[64]; ///< dequantization matrix for luma
uint8_t qmat_chroma[64]; ///< dequantization matrix for chroma
int qmat_changed; ///< 1 - global quantization matrices changed
- int prev_slice_sf; ///< scalefactor of the previous decoded slice
- DECLARE_ALIGNED(16, int16_t, qmat_luma_scaled)[64];
- DECLARE_ALIGNED(16, int16_t, qmat_chroma_scaled)[64];
int total_slices; ///< total number of slices in a picture
ProresThreadData *slice_data;
int pic_num;
@@ -75,29 +76,6 @@ typedef struct {
} ProresContext;
-static const uint8_t progressive_scan[64] = {
- 0, 1, 8, 9, 2, 3, 10, 11,
- 16, 17, 24, 25, 18, 19, 26, 27,
- 4, 5, 12, 20, 13, 6, 7, 14,
- 21, 28, 29, 22, 15, 23, 30, 31,
- 32, 33, 40, 48, 41, 34, 35, 42,
- 49, 56, 57, 50, 43, 36, 37, 44,
- 51, 58, 59, 52, 45, 38, 39, 46,
- 53, 60, 61, 54, 47, 55, 62, 63
-};
-
-static const uint8_t interlaced_scan[64] = {
- 0, 8, 1, 9, 16, 24, 17, 25,
- 2, 10, 3, 11, 18, 26, 19, 27,
- 32, 40, 33, 34, 41, 48, 56, 49,
- 42, 35, 43, 50, 57, 58, 51, 59,
- 4, 12, 5, 6, 13, 20, 28, 21,
- 14, 7, 15, 22, 29, 36, 44, 37,
- 30, 23, 31, 38, 45, 52, 60, 53,
- 46, 39, 47, 54, 61, 62, 55, 63
-};
-
-
static av_cold int decode_init(AVCodecContext *avctx)
{
ProresContext *ctx = avctx->priv_data;
@@ -116,7 +94,6 @@ static av_cold int decode_init(AVCodecContext *avctx)
ctx->scantable_type = -1; // set scantable type to uninitialized
memset(ctx->qmat_luma, 4, 64);
memset(ctx->qmat_chroma, 4, 64);
- ctx->prev_slice_sf = 0;
return 0;
}
@@ -176,10 +153,10 @@ static int decode_frame_header(ProresContext *ctx, const uint8_t *buf,
if (ctx->scantable_type != ctx->frame_type) {
if (!ctx->frame_type)
ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- progressive_scan);
+ ff_prores_progressive_scan);
else
ff_init_scantable(ctx->dsp.idct_permutation, &ctx->scantable,
- interlaced_scan);
+ ff_prores_interlaced_scan);
ctx->scantable_type = ctx->frame_type;
}
@@ -294,9 +271,11 @@ static int decode_picture_header(ProresContext *ctx, const uint8_t *buf,
for (i = 0; i < num_slices; i++) {
ctx->slice_data[i].index = data_ptr;
+ ctx->slice_data[i].prev_slice_sf = 0;
data_ptr += AV_RB16(index_ptr + i * 2);
}
ctx->slice_data[i].index = data_ptr;
+ ctx->slice_data[i].prev_slice_sf = 0;
if (data_ptr > buf + data_size) {
av_log(avctx, AV_LOG_ERROR, "out of slice data\n");
@@ -351,16 +330,6 @@ static inline int decode_vlc_codeword(GetBitContext *gb, uint8_t codebook)
#define LSB2SIGN(x) (-((x) & 1))
#define TOSIGNED(x) (((x) >> 1) ^ LSB2SIGN(x))
-#define FIRST_DC_CB 0xB8 // rice_order = 5, exp_golomb_order = 6, switch_bits = 0
-
-static uint8_t dc_codebook[4] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4D, // rice_order = 2, exp_golomb_order = 3, switch_bits = 1
- 0x70 // rice_order = 3, exp_golomb_order = 4, switch_bits = 0
-};
-
-
/**
* Decode DC coefficients for all blocks in a slice.
*/
@@ -379,7 +348,7 @@ static inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
delta = 3;
for (i = 1; i < nblocks; i++, out += 64) {
- code = decode_vlc_codeword(gb, dc_codebook[FFMIN(FFABS(delta), 3)]);
+ code = decode_vlc_codeword(gb, ff_prores_dc_codebook[FFMIN(FFABS(delta), 3)]);
sign = -(((delta >> 15) & 1) ^ (code & 1));
delta = (((code + 1) >> 1) ^ sign) - sign;
@@ -389,26 +358,6 @@ static inline void decode_dc_coeffs(GetBitContext *gb, DCTELEM *out,
}
-static uint8_t ac_codebook[7] = {
- 0x04, // rice_order = 0, exp_golomb_order = 1, switch_bits = 0
- 0x28, // rice_order = 1, exp_golomb_order = 2, switch_bits = 0
- 0x4C, // rice_order = 2, exp_golomb_order = 3, switch_bits = 0
- 0x05, // rice_order = 0, exp_golomb_order = 1, switch_bits = 1
- 0x29, // rice_order = 1, exp_golomb_order = 2, switch_bits = 1
- 0x06, // rice_order = 0, exp_golomb_order = 1, switch_bits = 2
- 0x0A, // rice_order = 0, exp_golomb_order = 2, switch_bits = 2
-};
-
-/**
- * Lookup tables for adaptive switching between codebooks
- * according with previous run/level value.
- */
-static uint8_t run_to_cb_index[16] =
- { 5, 5, 3, 3, 0, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 2 };
-
-static uint8_t lev_to_cb_index[10] = { 0, 6, 3, 5, 0, 1, 1, 1, 1, 2 };
-
-
/**
* Decode AC coefficients for all blocks in a slice.
*/
@@ -428,20 +377,20 @@ static inline void decode_ac_coeffs(GetBitContext *gb, DCTELEM *out,
block_mask = blocks_per_slice - 1;
for (pos = blocks_per_slice - 1; pos < max_coeffs;) {
- run_cb_index = run_to_cb_index[FFMIN(run, 15)];
- lev_cb_index = lev_to_cb_index[FFMIN(level, 9)];
+ run_cb_index = ff_prores_run_to_cb_index[FFMIN(run, 15)];
+ lev_cb_index = ff_prores_lev_to_cb_index[FFMIN(level, 9)];
bits_left = get_bits_left(gb);
if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left)))
return;
- run = decode_vlc_codeword(gb, ac_codebook[run_cb_index]);
+ run = decode_vlc_codeword(gb, ff_prores_ac_codebook[run_cb_index]);
bits_left = get_bits_left(gb);
if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left)))
return;
- level = decode_vlc_codeword(gb, ac_codebook[lev_cb_index]) + 1;
+ level = decode_vlc_codeword(gb, ff_prores_ac_codebook[lev_cb_index]) + 1;
pos += run + 1;
if (pos >= max_coeffs)
@@ -561,11 +510,11 @@ static int decode_slice(AVCodecContext *avctx, void *tdata)
/* scale quantization matrixes according with slice's scale factor */
/* TODO: this can be SIMD-optimized a lot */
- if (ctx->qmat_changed || sf != ctx->prev_slice_sf) {
- ctx->prev_slice_sf = sf;
+ if (ctx->qmat_changed || sf != td->prev_slice_sf) {
+ td->prev_slice_sf = sf;
for (i = 0; i < 64; i++) {
- ctx->qmat_luma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_luma[i] * sf;
- ctx->qmat_chroma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_chroma[i] * sf;
+ td->qmat_luma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_luma[i] * sf;
+ td->qmat_chroma_scaled[ctx->dsp.idct_permutation[i]] = ctx->qmat_chroma[i] * sf;
}
}
@@ -574,7 +523,7 @@ static int decode_slice(AVCodecContext *avctx, void *tdata)
(uint16_t*) (y_data + (mb_y_pos << 4) * y_linesize +
(mb_x_pos << 5)), y_linesize,
mbs_per_slice, 4, slice_width_factor + 2,
- ctx->qmat_luma_scaled);
+ td->qmat_luma_scaled);
/* decode U chroma plane */
decode_slice_plane(ctx, td, buf + hdr_size + y_data_size, u_data_size,
@@ -582,7 +531,7 @@ static int decode_slice(AVCodecContext *avctx, void *tdata)
(mb_x_pos << ctx->mb_chroma_factor)),
u_linesize, mbs_per_slice, ctx->num_chroma_blocks,
slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
+ td->qmat_chroma_scaled);
/* decode V chroma plane */
decode_slice_plane(ctx, td, buf + hdr_size + y_data_size + u_data_size,
@@ -591,7 +540,7 @@ static int decode_slice(AVCodecContext *avctx, void *tdata)
(mb_x_pos << ctx->mb_chroma_factor)),
v_linesize, mbs_per_slice, ctx->num_chroma_blocks,
slice_width_factor + ctx->chroma_factor - 1,
- ctx->qmat_chroma_scaled);
+ td->qmat_chroma_scaled);
return 0;
}
@@ -628,7 +577,6 @@ static int decode_picture(ProresContext *ctx, int pic_num,
}
-#define FRAME_ID MKBETAG('i', 'c', 'p', 'f')
#define MOVE_DATA_PTR(nbytes) buf += (nbytes); buf_size -= (nbytes)
static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,