Am So., 29. Dez. 2019 um 17:40 Uhr schrieb Linjie Fu <linjie...@intel.com>:
>
> Add swscale input support for Y210, output support and fate
> test could be added later if there is requirement for software
> CSC to this packed format.
>
> Signed-off-by: Linjie Fu <linjie...@intel.com>
> ---
> libswscale/input.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
> libswscale/utils.c | 2 ++
> 2 files changed, 50 insertions(+)
>
> diff --git a/libswscale/input.c b/libswscale/input.c
> index 064f8da..f79b983 100644
> --- a/libswscale/input.c
> +++ b/libswscale/input.c
> @@ -552,6 +552,42 @@ static void yvy2ToUV_c(uint8_t *dstU, uint8_t *dstV,
> const uint8_t *unused0, con
> av_assert1(src1 == src2);
> }
>
> +static void y210le_UV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t
> *unused0, const uint8_t *src,
> + const uint8_t *unused1, int width, uint32_t *unused2)
> +{
> + int i;
> + for (i = 0; i < width; i++) {
> + AV_WN16(dstU + i * 2, AV_RL16(src + i * 8 + 2) >> 6);
> + AV_WN16(dstV + i * 2, AV_RL16(src + i * 8 + 6) >> 6);
> + }
> +}
> +
> +static void y210be_UV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t
> *unused0, const uint8_t *src,
> + const uint8_t *unused1, int width, uint32_t *unused2)
> +{
> + int i;
> + for (i = 0; i < width; i++) {
> + AV_WN16(dstU + i * 2, AV_RB16(src + i * 8 + 2) >> 6);
> + AV_WN16(dstV + i * 2, AV_RB16(src + i * 8 + 6) >> 6);
> + }
> +}
> +
> +static void y210le_Y_c(uint8_t *dst, const uint8_t *src, const uint8_t
> *unused0,
> + const uint8_t *unused1, int width, uint32_t *unused2)
> +{
> + int i;
> + for (i = 0; i < width; i++)
> + AV_WN16(dst + i * 2, AV_RL16(src + i * 4) >> 6);
> +}
> +
> +static void y210be_Y_c(uint8_t *dst, const uint8_t *src, const uint8_t
> *unused0,
> + const uint8_t *unused1, int width, uint32_t *unused2)
> +{
> + int i;
> + for (i = 0; i < width; i++)
> + AV_WN16(dst + i * 2 ,AV_RB16(src + i * 4) >> 6);
> +}
> +
> static void bswap16Y_c(uint8_t *_dst, const uint8_t *_src, const uint8_t
> *unused1, const uint8_t *unused2, int width,
> uint32_t *unused)
> {
> @@ -1154,6 +1190,12 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> case AV_PIX_FMT_P016BE:
> c->chrToYV12 = p016BEToUV_c;
> break;
> + case AV_PIX_FMT_Y210LE:
> + c->chrToYV12 = y210le_UV_c;
> + break;
> + case AV_PIX_FMT_Y210BE:
> + c->chrToYV12 = y210be_UV_c;
> + break;
> }
> if (c->chrSrcHSubSample) {
> switch (srcFormat) {
> @@ -1586,6 +1628,12 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
> c->lumToYV12 = grayf32ToY16_bswap_c;
> #endif
> break;
> + case AV_PIX_FMT_Y210LE:
> + c->lumToYV12 = y210le_Y_c;
> + break;
> + case AV_PIX_FMT_Y210BE:
> + c->chrToYV12 = y210be_Y_c;
> + break;
> }
> if (c->needAlpha) {
> if (is16BPS(srcFormat) || isNBPS(srcFormat)) {
> diff --git a/libswscale/utils.c b/libswscale/utils.c
> index 57c4fd2..bff498f 100644
> --- a/libswscale/utils.c
> +++ b/libswscale/utils.c
> @@ -266,6 +266,8 @@ static const FormatEntry format_entries[AV_PIX_FMT_NB] = {
> [AV_PIX_FMT_YUVA444P12LE] = { 1, 1 },
> [AV_PIX_FMT_NV24] = { 1, 1 },
> [AV_PIX_FMT_NV42] = { 1, 1 },
> + [AV_PIX_FMT_Y210BE] = { 1, 0 },
> + [AV_PIX_FMT_Y210LE] = { 1, 0 },
Am I correct that this functions only work on LE because the vaapi drivers
only exist for LE?
Or do I misunderstand the code?
Carl Eugen
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