From: Ezequiel Garcia <ezequiel@collabora.com>
To: Maxime Ripard <maxime.ripard@bootlin.com>,
hans.verkuil@cisco.com, acourbot@chromium.org,
sakari.ailus@linux.intel.com,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: tfiga@chromium.org, posciak@chromium.org,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
Chen-Yu Tsai <wens@csie.org>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org, nicolas.dufresne@collabora.com,
jenskuske@gmail.com, jernej.skrabec@gmail.com, jonas@kwiboo.se,
linux-sunxi@googlegroups.com,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH v3 2/2] media: cedrus: Add H264 decoding support
Date: Mon, 11 Feb 2019 16:48:17 -0300 [thread overview]
Message-ID: <5a31f5596c04390d76bf34fdb8b71b6a96306943.camel@collabora.com> (raw)
In-Reply-To: <4c00e1ab1e70adb1d94db59c37393250ca3791c5.1549895062.git-series.maxime.ripard@bootlin.com>
On Mon, 2019-02-11 at 15:39 +0100, Maxime Ripard wrote:
> Introduce some basic H264 decoding support in cedrus. So far, only the
> baseline profile videos have been tested, and some more advanced features
> used in higher profiles are not even implemented.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[..]
> +static void _cedrus_write_ref_list(struct cedrus_ctx *ctx,
> + struct cedrus_run *run,
> + const u8 *ref_list, u8 num_ref,
> + enum cedrus_h264_sram_off sram)
> +{
> + const struct v4l2_ctrl_h264_decode_param *decode = run->h264.decode_param;
> + struct vb2_queue *cap_q = &ctx->fh.m2m_ctx->cap_q_ctx.q;
> + const struct vb2_buffer *dst_buf = &run->dst->vb2_buf;
> + struct cedrus_dev *dev = ctx->dev;
> + u8 sram_array[CEDRUS_MAX_REF_IDX];
> + unsigned int size, i;
> +
> + memset(sram_array, 0, sizeof(sram_array));
> +
> + for (i = 0; i < num_ref; i++) {
> + const struct v4l2_h264_dpb_entry *dpb;
> + const struct cedrus_buffer *cedrus_buf;
> + const struct vb2_v4l2_buffer *ref_buf;
> + unsigned int position;
> + int buf_idx;
> + u8 dpb_idx;
> +
> + dpb_idx = ref_list[i];
> + dpb = &decode->dpb[dpb_idx];
> +
> + if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE))
> + continue;
> +
> + if (dst_buf->timestamp == dpb->timestamp)
> + buf_idx = dst_buf->index;
> + else
> + buf_idx = vb2_find_timestamp(cap_q, dpb->timestamp, 0);
> +
> + if (buf_idx < 0)
> + continue;
> +
> + ref_buf = to_vb2_v4l2_buffer(ctx->dst_bufs[buf_idx]);
> + cedrus_buf = vb2_v4l2_to_cedrus_buffer(ref_buf);
> + position = cedrus_buf->codec.h264.position;
> +
> + sram_array[i] |= position << 1;
> + if (ref_buf->field == V4L2_FIELD_BOTTOM)
> + sram_array[i] |= BIT(0);
> + }
> +
> + size = min((unsigned int)ALIGN(num_ref, 4), sizeof(sram_array));
Perhaps s/unsigned int/size_t, so the arguments to min() have the same type?
Otherwise, I got this warning:
/home/zeta/repos/linux/media_tree/drivers/staging/media/sunxi/cedrus/cedrus_h264.c: In function ‘_cedrus_write_ref_list’:
/home/zeta/repos/linux/media_tree/include/linux/kernel.h:846:29: warning: comparison of distinct pointer types lacks a cast
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
Regards,
Ez
next prev parent reply other threads:[~2019-02-11 19:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-11 14:39 [PATCH v3 0/2] media: cedrus: Add H264 decoding support Maxime Ripard
2019-02-11 14:39 ` [PATCH v3 1/2] media: uapi: Add H264 low-level decoder API compound controls Maxime Ripard
2019-02-11 15:16 ` Hans Verkuil
2019-02-11 15:21 ` Hans Verkuil
2019-02-12 13:05 ` Maxime Ripard
2019-02-12 21:17 ` Ezequiel Garcia
2019-02-11 17:16 ` Nicolas Dufresne
2019-02-11 17:12 ` Ezequiel Garcia
2019-02-12 10:23 ` Maxime Ripard
2019-02-11 19:53 ` Ezequiel Garcia
2019-02-11 14:39 ` [PATCH v3 2/2] media: cedrus: Add H264 decoding support Maxime Ripard
2019-02-11 19:21 ` [linux-sunxi] " Jernej Škrabec
2019-02-12 10:43 ` Maxime Ripard
2019-02-12 17:46 ` Jernej Škrabec
2019-02-11 19:48 ` Ezequiel Garcia [this message]
2019-02-12 12:47 ` Maxime Ripard
2019-02-12 17:40 ` Jernej Škrabec
2019-02-14 20:42 ` Jernej Škrabec
2019-02-14 21:27 ` Jernej Škrabec
2019-02-12 12:50 ` [PATCH v3 0/2] " Tomasz Figa
2019-02-12 21:22 ` Ezequiel Garcia
2019-02-13 3:02 ` Tomasz Figa
2019-02-13 16:28 ` Ezequiel Garcia
2019-02-14 15:47 ` Maxime Ripard
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