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proresenc: Drop unnecessary DCT permutation bits 

No permutation is necessary for the FDCT.
This commit is contained in:
Diego Biurrun 2014-02-27 14:49:53 -08:00
parent b23650491f
commit d6acefe058
3 changed files with 5 additions and 11 deletions
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3
libavcodec/proresdsp.c
View File

@ -86,8 +86,5 @@ av_cold void ff_proresdsp_init(ProresDSPContext *dsp)
#endif
#if CONFIG_PRORES_ENCODER
dsp->fdct = prores_fdct_c;
dsp->dct_permutation_type = FF_NO_IDCT_PERM;
ff_init_scantable_permutation(dsp->dct_permutation,
dsp->dct_permutation_type);
#endif
}

2
libavcodec/proresdsp.h
View File

@ -30,8 +30,6 @@
typedef struct ProresDSPContext {
int idct_permutation_type;
uint8_t idct_permutation[64];
int dct_permutation_type;
uint8_t dct_permutation[64];
void (* idct_put) (uint16_t *out, int linesize, int16_t *block, const int16_t *qmat);
void (* fdct) (const uint16_t *src, int linesize, int16_t *block);
} ProresDSPContext;

11
libavcodec/proresenc.c
View File

@ -190,9 +190,9 @@ typedef struct ProresContext {
int16_t quants[MAX_STORED_Q][64];
int16_t custom_q[64];
const uint8_t *quant_mat;
const uint8_t *scantable;
ProresDSPContext dsp;
ScanTable scantable;
int mb_width, mb_height;
int mbs_per_slice;
@ -426,7 +426,7 @@ static int encode_slice_plane(ProresContext *ctx, PutBitContext *pb,
encode_dcs(pb, blocks, blocks_per_slice, qmat[0]);
encode_acs(pb, blocks, blocks_per_slice, plane_size_factor,
ctx->scantable.permutated, qmat);
ctx->scantable, qmat);
flush_put_bits(pb);
return (put_bits_count(pb) - saved_pos) >> 3;
@ -673,7 +673,7 @@ static int estimate_slice_plane(ProresContext *ctx, int *error, int plane,
bits = estimate_dcs(error, td->blocks[plane], blocks_per_slice, qmat[0]);
bits += estimate_acs(error, td->blocks[plane], blocks_per_slice,
plane_size_factor, ctx->scantable.permutated, qmat);
plane_size_factor, ctx->scantable, qmat);
return FFALIGN(bits, 8);
}
@ -1080,9 +1080,8 @@ static av_cold int encode_init(AVCodecContext *avctx)
return AVERROR(ENOMEM);
ff_proresdsp_init(&ctx->dsp);
ff_init_scantable(ctx->dsp.dct_permutation, &ctx->scantable,
interlaced ? ff_prores_interlaced_scan
: ff_prores_progressive_scan);
ctx->scantable = interlaced ? ff_prores_interlaced_scan
: ff_prores_progressive_scan;
mps = ctx->mbs_per_slice;
if (mps & (mps - 1)) {