Adapt to new controls (subsampling) This is a follow up to http://www.spinics.net/lists/linux-media/msg44348.html For encoding, the destination format now needs to be set to V4L2_PIX_FMT_JPEG and the subsampling (4:2:2 or 4:2:0) needs to be set using the respective control (V4L2_CID_JPEG_CHROMA_SUBSAMPLING). Required buffer size for destination image during encoding is no longer deduced from the format (which generally implied overestimation), but needs to be given from userspace in sizeimage. Not strictly related to the added controls, this patch also fixes setting the subsampling of the destination image for decoding, depending on the destination format. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> --- drivers/media/video/s5p-jpeg/jpeg-core.c | 17 ++++++++++------- 1 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/media/video/s5p-jpeg/jpeg-core.c b/drivers/media/video/s5p-jpeg/jpeg-core.c index c104aeb..5a49c30 100644 --- a/drivers/media/video/s5p-jpeg/jpeg-core.c +++ b/drivers/media/video/s5p-jpeg/jpeg-core.c @@ -32,10 +32,9 @@ static struct s5p_jpeg_fmt formats_enc[] = { { - .name = "YUV 4:2:0 planar, YCbCr", - .fourcc = V4L2_PIX_FMT_YUV420, - .depth = 12, - .colplanes = 3, + .name = "JPEG JFIF", + .fourcc = V4L2_PIX_FMT_JPEG, + .colplanes = 1, .types = MEM2MEM_CAPTURE, }, { @@ -43,7 +42,7 @@ static struct s5p_jpeg_fmt formats_enc[] = { .fourcc = V4L2_PIX_FMT_YUYV, .depth = 16, .colplanes = 1, - .types = MEM2MEM_CAPTURE | MEM2MEM_OUTPUT, + .types = MEM2MEM_OUTPUT, }, { .name = "RGB565", @@ -1025,11 +1024,14 @@ static void s5p_jpeg_device_run(void *priv) jpeg_htbl_dc(jpeg->regs, 2); jpeg_htbl_ac(jpeg->regs, 3); jpeg_htbl_dc(jpeg->regs, 3); - } else { + } else { /* S5P_JPEG_DECODE */ jpeg_rst_int_enable(jpeg->regs, true); jpeg_data_num_int_enable(jpeg->regs, true); jpeg_final_mcu_num_int_enable(jpeg->regs, true); - jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); + if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) + jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); + else + jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_420); jpeg_jpgadr(jpeg->regs, src_addr); jpeg_imgadr(jpeg->regs, dst_addr); } @@ -1269,6 +1271,7 @@ static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) curr_ctx->subsampling = jpeg_get_subsampling_mode(jpeg->regs); spin_unlock(&jpeg->slock); + jpeg_clear_int(jpeg->regs); return IRQ_HANDLED; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
