diff options
| -rw-r--r-- | libavcodec/imgconvert.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c index 0e763abf9e..a22fd889b2 100644 --- a/libavcodec/imgconvert.c +++ b/libavcodec/imgconvert.c @@ -922,6 +922,39 @@ static void uyvy411_to_yuv411p(AVPicture *dst, const AVPicture *src, } +static void yuv420p_to_yuv422(AVPicture *dst, const AVPicture *src, + int width, int height) +{ + int w, h; + uint8_t *line1, *line2, *linesrc = dst->data[0]; + uint8_t *lum1, *lum2, *lumsrc = src->data[0]; + uint8_t *cb1, *cb2 = src->data[1]; + uint8_t *cr1, *cr2 = src->data[2]; + + for(h = height / 2; h--;) { + line1 = linesrc; + line2 = linesrc + dst->linesize[0]; + + lum1 = lumsrc; + lum2 = lumsrc + src->linesize[0]; + + cb1 = cb2; + cr1 = cr2; + + for(w = width / 2; w--;) { + *line1++ = *lum1++; *line2++ = *lum2++; + *line1++ = *line2++ = *cb1++; + *line1++ = *lum1++; *line2++ = *lum2++; + *line1++ = *line2++ = *cr1++; + } + + linesrc += dst->linesize[0] * 2; + lumsrc += src->linesize[0] * 2; + cb2 += src->linesize[1]; + cr2 += src->linesize[2]; + } +} + #define SCALEBITS 10 #define ONE_HALF (1 << (SCALEBITS - 1)) #define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5)) @@ -1631,6 +1664,9 @@ typedef struct ConvertEntry { */ static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = { [PIX_FMT_YUV420P] = { + [PIX_FMT_YUV422] = { + .convert = yuv420p_to_yuv422, + }, [PIX_FMT_RGB555] = { .convert = yuv420p_to_rgb555 }, |