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dnxhddec: simplify block parsing calls

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Fewer arguments, less duplicated code.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Christophe Gisquet 2015-09-27 10:09:03 +02:00 committed by Michael Niedermayer
parent 8e8ed57ea7
commit 5c6e3a019c
1 changed files with 16 additions and 27 deletions
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43
libavcodec/dnxhddec.c
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@ -62,22 +62,18 @@ typedef struct DNXHDContext {
int mbaff;
int act;
void (*decode_dct_block)(const struct DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n);
RowContext *row, int n);
} DNXHDContext;
#define DNXHD_VLC_BITS 9
#define DNXHD_DC_VLC_BITS 7
static void dnxhd_decode_dct_block_8(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n);
RowContext *row, int n);
static void dnxhd_decode_dct_block_10(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n);
RowContext *row, int n);
static void dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n);
RowContext *row, int n);
static av_cold int dnxhd_decode_init(AVCodecContext *avctx)
{
@ -271,7 +267,7 @@ static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame,
static av_always_inline void dnxhd_decode_dct_block(const DNXHDContext *ctx,
RowContext *row,
int16_t *block, int n,
int n,
int index_bits,
int level_bias,
int level_shift)
@ -282,9 +278,12 @@ static av_always_inline void dnxhd_decode_dct_block(const DNXHDContext *ctx,
const uint8_t *weight_matrix;
const uint8_t *ac_level = ctx->cid_table->ac_level;
const uint8_t *ac_flags = ctx->cid_table->ac_flags;
int16_t *block = row->blocks[n];
const int eob_index = ctx->cid_table->eob_index;
OPEN_READER(bs, &row->gb);
ctx->bdsp.clear_block(block);
if (!ctx->is_444) {
if (n & 2) {
component = 1 + (n & 1);
@ -364,24 +363,21 @@ static av_always_inline void dnxhd_decode_dct_block(const DNXHDContext *ctx,
}
static void dnxhd_decode_dct_block_8(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n)
RowContext *row, int n)
{
dnxhd_decode_dct_block(ctx, row, block, n, 4, 32, 6);
dnxhd_decode_dct_block(ctx, row, n, 4, 32, 6);
}
static void dnxhd_decode_dct_block_10(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n)
RowContext *row, int n)
{
dnxhd_decode_dct_block(ctx, row, block, n, 6, 8, 4);
dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4);
}
static void dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx,
RowContext *row, int16_t *block,
int n)
RowContext *row, int n)
{
dnxhd_decode_dct_block(ctx, row, block, n, 6, 32, 6);
dnxhd_decode_dct_block(ctx, row, n, 6, 32, 6);
}
static int dnxhd_decode_macroblock(const DNXHDContext *ctx, RowContext *row,
@ -418,15 +414,8 @@ static int dnxhd_decode_macroblock(const DNXHDContext *ctx, RowContext *row,
row->last_qscale = qscale;
}
for (i = 0; i < 8; i++) {
ctx->bdsp.clear_block(row->blocks[i]);
ctx->decode_dct_block(ctx, row, row->blocks[i], i);
}
if (ctx->is_444) {
for (; i < 12; i++) {
ctx->bdsp.clear_block(row->blocks[i]);
ctx->decode_dct_block(ctx, row, row->blocks[i], i);
}
for (i = 0; i < 8 + 4 * ctx->is_444; i++) {
ctx->decode_dct_block(ctx, row, i);
}
if (frame->interlaced_frame) {