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v210: Use separate sample_factors

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The 10bit and the 8bit functions can now be implemented to process
a different amount of samples.

And while at it simplify a little the code.
This commit is contained in:
Luca Barbato
2016-01-28 01:01:46 +01:00
parent 15ec7aa417
commit e280fe1329
3 changed files with 20 additions and 9 deletions
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19
libavcodec/v210enc.c
View File

@@ -86,7 +86,8 @@ av_cold void ff_v210enc_init(V210EncContext *s)
{
s->pack_line_8 = v210_planar_pack_8_c;
s->pack_line_10 = v210_planar_pack_10_c;
s->sample_factor = 1;
s->sample_factor_8 = 1;
s->sample_factor_10 = 1;
if (ARCH_X86)
ff_v210enc_init_x86(s);
@@ -133,15 +134,19 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const uint16_t *y = (const uint16_t *)pic->data[0];
const uint16_t *u = (const uint16_t *)pic->data[1];
const uint16_t *v = (const uint16_t *)pic->data[2];
const int sample_size = 6 * s->sample_factor_10;
const int sample_w = avctx->width / sample_size;
for (h = 0; h < avctx->height; h++) {
uint32_t val;
w = (avctx->width / (6 * s->sample_factor)) * 6 * s->sample_factor;
w = sample_w * sample_size;
s->pack_line_10(y, u, v, dst, w);
y += w;
u += w >> 1;
v += w >> 1;
dst += (w / (6 * s->sample_factor)) * 16 * s->sample_factor;
dst += sample_w * 16 * s->sample_factor_10;
for (; w < avctx->width - 5; w += 6) {
WRITE_PIXELS(u, y, v);
@@ -178,15 +183,19 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
const uint8_t *y = pic->data[0];
const uint8_t *u = pic->data[1];
const uint8_t *v = pic->data[2];
const int sample_size = 12 * s->sample_factor_8;
const int sample_w = avctx->width / sample_size;
for (h = 0; h < avctx->height; h++) {
uint32_t val;
w = (avctx->width / (12 * s->sample_factor)) * 12 * s->sample_factor;
w = sample_w * sample_size;
s->pack_line_8(y, u, v, dst, w);
y += w;
u += w >> 1;
v += w >> 1;
dst += (w / (12 * s->sample_factor)) * 32 * s->sample_factor;
dst += sample_w * 32 * s->sample_factor_8;
for (; w < avctx->width - 5; w += 6) {
WRITE_PIXELS8(u, y, v);

3
libavcodec/v210enc.h
View File

@@ -28,7 +28,8 @@ typedef struct V210EncContext {
const uint8_t *v, uint8_t *dst, ptrdiff_t width);
void (*pack_line_10)(const uint16_t *y, const uint16_t *u,
const uint16_t *v, uint8_t *dst, ptrdiff_t width);
int sample_factor;
int sample_factor_8;
int sample_factor_10;
} V210EncContext;
void ff_v210enc_init(V210EncContext *s);

7
libavcodec/x86/v210enc_init.c
View File

@@ -46,8 +46,9 @@ av_cold void ff_v210enc_init_x86(V210EncContext *s)
s->pack_line_8 = ff_v210_planar_pack_8_avx;
if (EXTERNAL_AVX2(cpu_flags)) {
s->sample_factor = 2;
s->pack_line_8 = ff_v210_planar_pack_8_avx2;
s->pack_line_10 = ff_v210_planar_pack_10_avx2;
s->sample_factor_8 = 2;
s->pack_line_8 = ff_v210_planar_pack_8_avx2;
s->sample_factor_10 = 2;
s->pack_line_10 = ff_v210_planar_pack_10_avx2;
}
}