On 11/12/2018 05:47 PM, Paul Kocialkowski wrote:
> Hi,
>
> On Mon, 2018-11-12 at 09:33 +0100, Hans Verkuil wrote:
>> Replace old reference frame indices by new tag method.
>
> I tested this for the cedrus driver and it works properly!
> Thanks a lot for implementating this for our driver.
> I have one minor cosmetic comment below.
>
> Regarding the padding concerns, I am wondering if we should convert some
> of the fields to flags (as it's done in the proposed H264 spec) when
> they are binary. We could then use this flags element as padding,
> instead of picking the last item and increasing its size.
>
> What do you think?
Can you take a look at how that would work out? Make a proposal or something
like that?
It's not a bad idea.
Regards,
Hans
>
>> Signed-off-by: Hans Verkuil <hverk...@xs4all.nl>
>> ---
>> drivers/media/v4l2-core/v4l2-ctrls.c | 9 --------
>> drivers/staging/media/sunxi/cedrus/cedrus.h | 8 ++++---
>> .../staging/media/sunxi/cedrus/cedrus_dec.c | 10 +++++++++
>> .../staging/media/sunxi/cedrus/cedrus_mpeg2.c | 21 ++++++++-----------
>> include/uapi/linux/v4l2-controls.h | 14 +++++--------
>> 5 files changed, 29 insertions(+), 33 deletions(-)
>>
>> diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c
>> b/drivers/media/v4l2-core/v4l2-ctrls.c
>> index 5f2b033a7a42..b854cceb19dc 100644
>> --- a/drivers/media/v4l2-core/v4l2-ctrls.c
>> +++ b/drivers/media/v4l2-core/v4l2-ctrls.c
>> @@ -1660,15 +1660,6 @@ static int std_validate(const struct v4l2_ctrl *ctrl,
>> u32 idx,
>> return -EINVAL;
>> }
>>
>> - if (p_mpeg2_slice_params->backward_ref_index >= VIDEO_MAX_FRAME
>> ||
>> - p_mpeg2_slice_params->forward_ref_index >= VIDEO_MAX_FRAME)
>> - return -EINVAL;
>> -
>> - if (p_mpeg2_slice_params->pad ||
>> - p_mpeg2_slice_params->picture.pad ||
>> - p_mpeg2_slice_params->sequence.pad)
>> - return -EINVAL;
>> -
>> return 0;
>>
>> case V4L2_CTRL_TYPE_MPEG2_QUANTIZATION:
>> diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h
>> b/drivers/staging/media/sunxi/cedrus/cedrus.h
>> index 3f61248c57ac..a4bc19ae6bcc 100644
>> --- a/drivers/staging/media/sunxi/cedrus/cedrus.h
>> +++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
>> @@ -142,11 +142,13 @@ static inline dma_addr_t cedrus_buf_addr(struct
>> vb2_buffer *buf,
>> }
>>
>> static inline dma_addr_t cedrus_dst_buf_addr(struct cedrus_ctx *ctx,
>> - unsigned int index,
>> - unsigned int plane)
>> + int index, unsigned int plane)
>> {
>> - struct vb2_buffer *buf = ctx->dst_bufs[index];
>> + struct vb2_buffer *buf;
>>
>> + if (index < 0)
>> + return 0;
>
> Maybe adding a new line here would increase readability?
>
> Cheers,
>
> Paul
>
>> + buf = ctx->dst_bufs[index];
>> return buf ? cedrus_buf_addr(buf, &ctx->dst_fmt, plane) : 0;
>> }
>>
>> diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
>> b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
>> index e40180a33951..76fed2f1f5e2 100644
>> --- a/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
>> +++ b/drivers/staging/media/sunxi/cedrus/cedrus_dec.c
>> @@ -53,6 +53,16 @@ void cedrus_device_run(void *priv)
>> break;
>> }
>>
>> + run.dst->vb2_buf.timestamp = run.src->vb2_buf.timestamp;
>> + if (run.src->flags & V4L2_BUF_FLAG_TIMECODE)
>> + run.dst->timecode = run.src->timecode;
>> + else if (run.src->flags & V4L2_BUF_FLAG_TAG)
>> + run.dst->tag = run.src->tag;
>> + run.dst->flags = run.src->flags &
>> + (V4L2_BUF_FLAG_TIMECODE |
>> + V4L2_BUF_FLAG_TAG |
>> + V4L2_BUF_FLAG_TSTAMP_SRC_MASK);
>> +
>> dev->dec_ops[ctx->current_codec]->setup(ctx, &run);
>>
>> spin_unlock_irqrestore(&ctx->dev->irq_lock, flags);
>> diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
>> b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
>> index 9abd39cae38c..fdde9a099153 100644
>> --- a/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
>> +++ b/drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
>> @@ -82,7 +82,10 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx,
>> struct cedrus_run *run)
>> dma_addr_t fwd_luma_addr, fwd_chroma_addr;
>> dma_addr_t bwd_luma_addr, bwd_chroma_addr;
>> struct cedrus_dev *dev = ctx->dev;
>> + struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
>> const u8 *matrix;
>> + int forward_idx;
>> + int backward_idx;
>> unsigned int i;
>> u32 reg;
>>
>> @@ -156,23 +159,17 @@ static void cedrus_mpeg2_setup(struct cedrus_ctx *ctx,
>> struct cedrus_run *run)
>> cedrus_write(dev, VE_DEC_MPEG_PICBOUNDSIZE, reg);
>>
>> /* Forward and backward prediction reference buffers. */
>> + forward_idx = vb2_find_tag(cap_q, slice_params->forward_ref_tag, 0);
>>
>> - fwd_luma_addr = cedrus_dst_buf_addr(ctx,
>> - slice_params->forward_ref_index,
>> - 0);
>> - fwd_chroma_addr = cedrus_dst_buf_addr(ctx,
>> - slice_params->forward_ref_index,
>> - 1);
>> + fwd_luma_addr = cedrus_dst_buf_addr(ctx, forward_idx, 0);
>> + fwd_chroma_addr = cedrus_dst_buf_addr(ctx, forward_idx, 1);
>>
>> cedrus_write(dev, VE_DEC_MPEG_FWD_REF_LUMA_ADDR, fwd_luma_addr);
>> cedrus_write(dev, VE_DEC_MPEG_FWD_REF_CHROMA_ADDR, fwd_chroma_addr);
>>
>> - bwd_luma_addr = cedrus_dst_buf_addr(ctx,
>> - slice_params->backward_ref_index,
>> - 0);
>> - bwd_chroma_addr = cedrus_dst_buf_addr(ctx,
>> - slice_params->backward_ref_index,
>> - 1);
>> + backward_idx = vb2_find_tag(cap_q, slice_params->backward_ref_tag, 0);
>> + bwd_luma_addr = cedrus_dst_buf_addr(ctx, backward_idx, 0);
>> + bwd_chroma_addr = cedrus_dst_buf_addr(ctx, backward_idx, 1);
>>
>> cedrus_write(dev, VE_DEC_MPEG_BWD_REF_LUMA_ADDR, bwd_luma_addr);
>> cedrus_write(dev, VE_DEC_MPEG_BWD_REF_CHROMA_ADDR, bwd_chroma_addr);
>> diff --git a/include/uapi/linux/v4l2-controls.h
>> b/include/uapi/linux/v4l2-controls.h
>> index 998983a6e6b7..43f2f9148b3c 100644
>> --- a/include/uapi/linux/v4l2-controls.h
>> +++ b/include/uapi/linux/v4l2-controls.h
>> @@ -1109,10 +1109,9 @@ struct v4l2_mpeg2_sequence {
>> __u32 vbv_buffer_size;
>>
>> /* ISO/IEC 13818-2, ITU-T Rec. H.262: Sequence extension */
>> - __u8 profile_and_level_indication;
>> + __u16 profile_and_level_indication;
>> __u8 progressive_sequence;
>> __u8 chroma_format;
>> - __u8 pad;
>> };
>>
>> struct v4l2_mpeg2_picture {
>> @@ -1130,23 +1129,20 @@ struct v4l2_mpeg2_picture {
>> __u8 intra_vlc_format;
>> __u8 alternate_scan;
>> __u8 repeat_first_field;
>> - __u8 progressive_frame;
>> - __u8 pad;
>> + __u16 progressive_frame;
>> };
>>
>> struct v4l2_ctrl_mpeg2_slice_params {
>> __u32 bit_size;
>> __u32 data_bit_offset;
>> + __u64 backward_ref_tag;
>> + __u64 forward_ref_tag;
>>
>> struct v4l2_mpeg2_sequence sequence;
>> struct v4l2_mpeg2_picture picture;
>>
>> /* ISO/IEC 13818-2, ITU-T Rec. H.262: Slice */
>> - __u8 quantiser_scale_code;
>> -
>> - __u8 backward_ref_index;
>> - __u8 forward_ref_index;
>> - __u8 pad;
>> + __u32 quantiser_scale_code;
>> };
>>
>> struct v4l2_ctrl_mpeg2_quantization {
