Le vendredi 13 décembre 2024 à 18:10 +0900, Ming Qian a écrit :
> From: Ming Qian <ming.qian@xxxxxxx>
>
> When using VB2_DMABUF, the relationship between dma-buf and v4l2 buffer
> may not one-to-one, a single dma-buf may be queued via different
> v4l2 buffers, and different dma-bufs may be queued via the same
> v4l2 buffer, so it's not appropriate to use the v4l2 buffer index
> as the frame store id.
>
> We can generate a frame store id according to the dma address.
> Then for a given dma-buf, the id is fixed.
>
> Driver now manages the frame store and vb2-buffer states independently.
>
> When a dmabuf is queued via another v4l2 buffer before the buffer is
> released by firmware, need to pend it until firmware release it.
>
> Signed-off-by: Ming Qian <ming.qian@xxxxxxx>
> ---
> v2
> -- fix an uninitialized issue reported by media-ci
>
> drivers/media/platform/amphion/vdec.c | 232 ++++++++++++++++++----
> drivers/media/platform/amphion/vpu.h | 7 +-
> drivers/media/platform/amphion/vpu_dbg.c | 15 +-
> drivers/media/platform/amphion/vpu_v4l2.c | 11 +
> 4 files changed, 218 insertions(+), 47 deletions(-)
>
> diff --git a/drivers/media/platform/amphion/vdec.c b/drivers/media/platform/amphion/vdec.c
> index 61d5598ee6a1..a26cb0c264c9 100644
> --- a/drivers/media/platform/amphion/vdec.c
> +++ b/drivers/media/platform/amphion/vdec.c
> @@ -26,6 +26,7 @@
> #include "vpu_cmds.h"
> #include "vpu_rpc.h"
>
> +#define VDEC_SLOT_CNT_DFT 32
> #define VDEC_MIN_BUFFER_CAP 8
> #define VDEC_MIN_BUFFER_OUT 8
>
> @@ -41,6 +42,14 @@ struct vdec_fs_info {
> u32 tag;
> };
>
> +struct vdec_frame_store_t {
> + struct vpu_vb2_buffer *curr;
> + struct vpu_vb2_buffer *pend;
> + dma_addr_t addr;
> + unsigned int state;
> + u32 tag;
> +};
> +
> struct vdec_t {
> u32 seq_hdr_found;
> struct vpu_buffer udata;
> @@ -48,7 +57,8 @@ struct vdec_t {
> struct vpu_dec_codec_info codec_info;
> enum vpu_codec_state state;
>
> - struct vpu_vb2_buffer *slots[VB2_MAX_FRAME];
> + struct vdec_frame_store_t *slots;
> + u32 slot_count;
> u32 req_frame_count;
> struct vdec_fs_info mbi;
> struct vdec_fs_info dcp;
> @@ -289,6 +299,64 @@ static int vdec_ctrl_init(struct vpu_inst *inst)
> return 0;
> }
>
> +static void vdec_attach_frame_store(struct vpu_inst *inst, struct vb2_buffer *vb)
> +{
> + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> + struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
> + struct vdec_t *vdec = inst->priv;
> + struct vdec_frame_store_t *new_slots = NULL;
> + dma_addr_t addr;
> + int i;
> +
> + addr = vpu_get_vb_phy_addr(vb, 0);
> + for (i = 0; i < vdec->slot_count; i++) {
> + if (addr == vdec->slots[i].addr) {
> + if (vdec->slots[i].curr && vdec->slots[i].curr != vpu_buf) {
> + vpu_set_buffer_state(vbuf, VPU_BUF_STATE_CHANGED);
> + vdec->slots[i].pend = vpu_buf;
> + } else {
> + vpu_set_buffer_state(vbuf, vdec->slots[i].state);
> + }
> + vpu_buf->fs_id = i;
> + return;
> + }
> + }
> +
> + for (i = 0; i < vdec->slot_count; i++) {
> + if (!vdec->slots[i].addr) {
> + vdec->slots[i].addr = addr;
> + vpu_buf->fs_id = i;
> + return;
> + }
> + }
> +
> + new_slots = vzalloc(sizeof(*vdec->slots) * vdec->slot_count * 2);
To avoid open coding arithmetics (see Documentation/process/deprecated.rst) you
may be able to use flex_array_size(vdec, slots, vdec->slot_count * 2)
> + if (!vdec->slots) {
> + dev_err(inst->dev, "fail to alloc frame store\n");
> + vpu_set_buffer_state(vbuf, VPU_BUF_STATE_ERROR);
> + return;
> + }
> +
> + memcpy(new_slots, vdec->slots, sizeof(*vdec->slots) * vdec->slot_count);
> + vfree(vdec->slots);
> + vdec->slots = new_slots;
> + vdec->slot_count *= 2;
> +
> + vdec->slots[i].addr = addr;
> + vpu_buf->fs_id = i;
> +}
> +
> +static void vdec_reset_frame_store(struct vpu_inst *inst)
> +{
> + struct vdec_t *vdec = inst->priv;
> +
> + if (!vdec->slots || !vdec->slot_count)
> + return;
> +
> + vpu_trace(inst->dev, "inst[%d] reset slots\n", inst->id);
> + memset(vdec->slots, 0, sizeof(*vdec->slots) * vdec->slot_count);
Same here, flex_array_size() would calculate the size for you.
> +}
> +
> static void vdec_handle_resolution_change(struct vpu_inst *inst)
> {
> struct vdec_t *vdec = inst->priv;
> @@ -745,11 +813,11 @@ static int vdec_frame_decoded(struct vpu_inst *inst, void *arg)
> struct vb2_v4l2_buffer *src_buf;
> int ret = 0;
>
> - if (!info || info->id >= ARRAY_SIZE(vdec->slots))
> + if (!info || info->id >= vdec->slot_count)
> return -EINVAL;
>
> vpu_inst_lock(inst);
> - vpu_buf = vdec->slots[info->id];
> + vpu_buf = vdec->slots[info->id].curr;
> if (!vpu_buf) {
> dev_err(inst->dev, "[%d] decoded invalid frame[%d]\n", inst->id, info->id);
> ret = -EINVAL;
> @@ -770,11 +838,13 @@ static int vdec_frame_decoded(struct vpu_inst *inst, void *arg)
> if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_DECODED)
> dev_info(inst->dev, "[%d] buf[%d] has been decoded\n", inst->id, info->id);
> vpu_set_buffer_state(vbuf, VPU_BUF_STATE_DECODED);
> + vdec->slots[info->id].state = VPU_BUF_STATE_DECODED;
> vdec->decoded_frame_count++;
> if (vdec->params.display_delay_enable) {
> struct vpu_format *cur_fmt;
>
> cur_fmt = vpu_get_format(inst, inst->cap_format.type);
> + vdec->slots[info->id].state = VPU_BUF_STATE_READY;
> vpu_set_buffer_state(vbuf, VPU_BUF_STATE_READY);
> for (int i = 0; i < vbuf->vb2_buf.num_planes; i++)
> vb2_set_plane_payload(&vbuf->vb2_buf,
> @@ -797,11 +867,11 @@ static struct vpu_vb2_buffer *vdec_find_buffer(struct vpu_inst *inst, u32 luma)
> struct vdec_t *vdec = inst->priv;
> int i;
>
> - for (i = 0; i < ARRAY_SIZE(vdec->slots); i++) {
> - if (!vdec->slots[i])
> + for (i = 0; i < vdec->slot_count; i++) {
> + if (!vdec->slots[i].curr)
> continue;
> - if (luma == vdec->slots[i]->luma)
> - return vdec->slots[i];
> + if (luma == vdec->slots[i].addr)
> + return vdec->slots[i].curr;
> }
>
> return NULL;
> @@ -835,11 +905,11 @@ static void vdec_buf_done(struct vpu_inst *inst, struct vpu_frame_info *frame)
>
> cur_fmt = vpu_get_format(inst, inst->cap_format.type);
> vbuf = &vpu_buf->m2m_buf.vb;
> - if (vbuf->vb2_buf.index != frame->id)
> - dev_err(inst->dev, "[%d] buffer id(%d, %d) dismatch\n",
> - inst->id, vbuf->vb2_buf.index, frame->id);
> + if (vpu_buf->fs_id != frame->id)
> + dev_err(inst->dev, "[%d] buffer id(%d(%d), %d) dismatch\n",
> + inst->id, vpu_buf->fs_id, vbuf->vb2_buf.index, frame->id);
>
> - if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_READY && vdec->params.display_delay_enable)
> + if (vdec->params.display_delay_enable)
> return;
>
> if (vpu_get_buffer_state(vbuf) != VPU_BUF_STATE_DECODED)
> @@ -852,10 +922,11 @@ static void vdec_buf_done(struct vpu_inst *inst, struct vpu_frame_info *frame)
> vbuf->sequence = vdec->sequence;
> dev_dbg(inst->dev, "[%d][OUTPUT TS]%32lld\n", inst->id, vbuf->vb2_buf.timestamp);
>
> - v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
> vpu_inst_lock(inst);
> + vdec->slots[vpu_buf->fs_id].state = VPU_BUF_STATE_READY;
> vdec->display_frame_count++;
> vpu_inst_unlock(inst);
> + v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
> dev_dbg(inst->dev, "[%d] decoded : %d, display : %d, sequence : %d\n",
> inst->id, vdec->decoded_frame_count, vdec->display_frame_count, vdec->sequence);
> }
> @@ -1083,18 +1154,30 @@ static int vdec_response_frame(struct vpu_inst *inst, struct vb2_v4l2_buffer *vb
> if (!vbuf)
> return -EINVAL;
>
> - if (vdec->slots[vbuf->vb2_buf.index]) {
> - dev_err(inst->dev, "[%d] repeat alloc fs %d\n",
> - inst->id, vbuf->vb2_buf.index);
> + vpu_buf = to_vpu_vb2_buffer(vbuf);
> + if (vpu_buf->fs_id < 0 || vpu_buf->fs_id >= vdec->slot_count) {
> + dev_err(inst->dev, "invalid fs %d for v4l2 buffer %d\n",
> + vpu_buf->fs_id, vbuf->vb2_buf.index);
> return -EINVAL;
> }
>
> + if (vdec->slots[vpu_buf->fs_id].curr) {
> + if (vdec->slots[vpu_buf->fs_id].curr != vpu_buf) {
> + vpu_set_buffer_state(vbuf, VPU_BUF_STATE_CHANGED);
> + vdec->slots[vpu_buf->fs_id].pend = vpu_buf;
> + } else {
> + vpu_set_buffer_state(vbuf, vdec->slots[vpu_buf->fs_id].state);
> + }
> + dev_err(inst->dev, "[%d] repeat alloc fs %d (v4l2 index %d)\n",
> + inst->id, vpu_buf->fs_id, vbuf->vb2_buf.index);
> + return -EAGAIN;
> + }
> +
> dev_dbg(inst->dev, "[%d] state = %s, alloc fs %d, tag = 0x%x\n",
> inst->id, vpu_codec_state_name(inst->state), vbuf->vb2_buf.index, vdec->seq_tag);
> - vpu_buf = to_vpu_vb2_buffer(vbuf);
>
> memset(&info, 0, sizeof(info));
> - info.id = vbuf->vb2_buf.index;
> + info.id = vpu_buf->fs_id;
> info.type = MEM_RES_FRAME;
> info.tag = vdec->seq_tag;
> info.luma_addr = vpu_get_vb_phy_addr(&vbuf->vb2_buf, 0);
> @@ -1109,12 +1192,13 @@ static int vdec_response_frame(struct vpu_inst *inst, struct vb2_v4l2_buffer *vb
> if (ret)
> return ret;
>
> - vpu_buf->tag = info.tag;
> vpu_buf->luma = info.luma_addr;
> vpu_buf->chroma_u = info.chroma_addr;
> vpu_buf->chroma_v = 0;
> vpu_set_buffer_state(vbuf, VPU_BUF_STATE_INUSE);
> - vdec->slots[info.id] = vpu_buf;
> + vdec->slots[info.id].tag = info.tag;
> + vdec->slots[info.id].curr = vpu_buf;
> + vdec->slots[info.id].state = VPU_BUF_STATE_INUSE;
> vdec->req_frame_count--;
>
> return 0;
> @@ -1175,25 +1259,47 @@ static void vdec_recycle_buffer(struct vpu_inst *inst, struct vb2_v4l2_buffer *v
> v4l2_m2m_buf_queue(inst->fh.m2m_ctx, vbuf);
> }
>
> -static void vdec_clear_slots(struct vpu_inst *inst)
> +static void vdec_release_curr_frame_store(struct vpu_inst *inst, u32 id)
> {
> struct vdec_t *vdec = inst->priv;
> struct vpu_vb2_buffer *vpu_buf;
> struct vb2_v4l2_buffer *vbuf;
> +
> + if (id >= vdec->slot_count)
> + return;
> + if (!vdec->slots[id].curr)
> + return;
> +
> + vpu_buf = vdec->slots[id].curr;
> + vbuf = &vpu_buf->m2m_buf.vb;
> +
> + vdec_response_fs_release(inst, id, vdec->slots[id].tag);
> + if (vpu_buf->fs_id == id) {
> + if (vpu_buf->state != VPU_BUF_STATE_READY)
> + vdec_recycle_buffer(inst, vbuf);
> + vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
> + }
> +
> + vdec->slots[id].curr = NULL;
> + vdec->slots[id].state = VPU_BUF_STATE_IDLE;
> +
> + if (vdec->slots[id].pend) {
> + vpu_set_buffer_state(&vdec->slots[id].pend->m2m_buf.vb, VPU_BUF_STATE_IDLE);
> + vdec->slots[id].pend = NULL;
> + }
> +}
> +
> +static void vdec_clear_slots(struct vpu_inst *inst)
> +{
> + struct vdec_t *vdec = inst->priv;
> int i;
>
> - for (i = 0; i < ARRAY_SIZE(vdec->slots); i++) {
> - if (!vdec->slots[i])
> + for (i = 0; i < vdec->slot_count; i++) {
> + if (!vdec->slots[i].curr)
> continue;
>
> - vpu_buf = vdec->slots[i];
> - vbuf = &vpu_buf->m2m_buf.vb;
> -
> vpu_trace(inst->dev, "clear slot %d\n", i);
> - vdec_response_fs_release(inst, i, vpu_buf->tag);
> - vdec_recycle_buffer(inst, vbuf);
> - vdec->slots[i]->state = VPU_BUF_STATE_IDLE;
> - vdec->slots[i] = NULL;
> + vdec_release_curr_frame_store(inst, i);
> }
> }
>
> @@ -1324,39 +1430,29 @@ static void vdec_event_req_fs(struct vpu_inst *inst, struct vpu_fs_info *fs)
> static void vdec_evnet_rel_fs(struct vpu_inst *inst, struct vpu_fs_info *fs)
> {
> struct vdec_t *vdec = inst->priv;
> - struct vpu_vb2_buffer *vpu_buf;
> - struct vb2_v4l2_buffer *vbuf;
>
> - if (!fs || fs->id >= ARRAY_SIZE(vdec->slots))
> + if (!fs || fs->id >= vdec->slot_count)
> return;
> if (fs->type != MEM_RES_FRAME)
> return;
>
> - if (fs->id >= vpu_get_num_buffers(inst, inst->cap_format.type)) {
> + if (fs->id >= vdec->slot_count) {
> dev_err(inst->dev, "[%d] invalid fs(%d) to release\n", inst->id, fs->id);
> return;
> }
>
> vpu_inst_lock(inst);
> - vpu_buf = vdec->slots[fs->id];
> - vdec->slots[fs->id] = NULL;
> -
> - if (!vpu_buf) {
> + if (!vdec->slots[fs->id].curr) {
> dev_dbg(inst->dev, "[%d] fs[%d] has bee released\n", inst->id, fs->id);
> goto exit;
> }
>
> - vbuf = &vpu_buf->m2m_buf.vb;
> - if (vpu_get_buffer_state(vbuf) == VPU_BUF_STATE_DECODED) {
> + if (vdec->slots[fs->id].state == VPU_BUF_STATE_DECODED) {
> dev_dbg(inst->dev, "[%d] frame skip\n", inst->id);
> vdec->sequence++;
> }
>
> - vdec_response_fs_release(inst, fs->id, vpu_buf->tag);
> - if (vpu_get_buffer_state(vbuf) != VPU_BUF_STATE_READY)
> - vdec_recycle_buffer(inst, vbuf);
> -
> - vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
> + vdec_release_curr_frame_store(inst, fs->id);
> vpu_process_capture_buffer(inst);
>
> exit:
> @@ -1552,6 +1648,11 @@ static void vdec_cleanup(struct vpu_inst *inst)
> return;
>
> vdec = inst->priv;
> + if (vdec) {
> + vfree(vdec->slots);
> + vdec->slots = NULL;
> + vdec->slot_count = 0;
> + }
> vfree(vdec);
> inst->priv = NULL;
> vfree(inst);
> @@ -1683,6 +1784,38 @@ static int vdec_stop_session(struct vpu_inst *inst, u32 type)
> return 0;
> }
>
> +static int vdec_get_slot_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i)
> +{
> + struct vdec_t *vdec = inst->priv;
> + struct vpu_vb2_buffer *vpu_buf;
> + int num = -1;
> +
> + vpu_inst_lock(inst);
> + if (i >= vdec->slot_count || !vdec->slots[i].addr)
> + goto exit;
> +
> + vpu_buf = vdec->slots[i].curr;
> +
> + num = scnprintf(str, size, "slot[%2d] :", i);
> + if (vpu_buf) {
> + num += scnprintf(str + num, size - num, " %2d",
> + vpu_buf->m2m_buf.vb.vb2_buf.index);
> + num += scnprintf(str + num, size - num, "; state = %d", vdec->slots[i].state);
> + } else {
> + num += scnprintf(str + num, size - num, " -1");
> + }
> +
> + if (vdec->slots[i].pend)
> + num += scnprintf(str + num, size - num, "; %d",
> + vdec->slots[i].pend->m2m_buf.vb.vb2_buf.index);
> +
> + num += scnprintf(str + num, size - num, "\n");
> +exit:
> + vpu_inst_unlock(inst);
> +
> + return num;
> +}
> +
> static int vdec_get_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i)
> {
> struct vdec_t *vdec = inst->priv;
> @@ -1741,6 +1874,7 @@ static int vdec_get_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i
> vdec->codec_info.vui_present);
> break;
> default:
> + num = vdec_get_slot_debug_info(inst, str, size, i - 10);
> break;
> }
>
> @@ -1764,6 +1898,8 @@ static struct vpu_inst_ops vdec_inst_ops = {
> .get_debug_info = vdec_get_debug_info,
> .wait_prepare = vpu_inst_unlock,
> .wait_finish = vpu_inst_lock,
> + .attach_frame_store = vdec_attach_frame_store,
> + .reset_frame_store = vdec_reset_frame_store,
> };
>
> static void vdec_init(struct file *file)
> @@ -1804,6 +1940,14 @@ static int vdec_open(struct file *file)
> return -ENOMEM;
> }
>
> + vdec->slots = vzalloc(sizeof(*vdec->slots) * VDEC_SLOT_CNT_DFT);
> + if (!vdec->slots) {
> + vfree(vdec);
> + vfree(inst);
> + return -ENOMEM;
> + }
> + vdec->slot_count = VDEC_SLOT_CNT_DFT;
> +
> inst->ops = &vdec_inst_ops;
> inst->formats = vdec_formats;
> inst->type = VPU_CORE_TYPE_DEC;
> diff --git a/drivers/media/platform/amphion/vpu.h b/drivers/media/platform/amphion/vpu.h
> index 22f0da26ccec..76bfd6b26170 100644
> --- a/drivers/media/platform/amphion/vpu.h
> +++ b/drivers/media/platform/amphion/vpu.h
> @@ -223,6 +223,8 @@ struct vpu_inst_ops {
> int (*get_debug_info)(struct vpu_inst *inst, char *str, u32 size, u32 i);
> void (*wait_prepare)(struct vpu_inst *inst);
> void (*wait_finish)(struct vpu_inst *inst);
> + void (*attach_frame_store)(struct vpu_inst *inst, struct vb2_buffer *vb);
> + void (*reset_frame_store)(struct vpu_inst *inst);
> };
>
> struct vpu_inst {
> @@ -296,7 +298,8 @@ enum {
> VPU_BUF_STATE_DECODED,
> VPU_BUF_STATE_READY,
> VPU_BUF_STATE_SKIP,
> - VPU_BUF_STATE_ERROR
> + VPU_BUF_STATE_ERROR,
> + VPU_BUF_STATE_CHANGED
> };
>
> struct vpu_vb2_buffer {
> @@ -305,8 +308,8 @@ struct vpu_vb2_buffer {
> dma_addr_t chroma_u;
> dma_addr_t chroma_v;
> unsigned int state;
> - u32 tag;
> u32 average_qp;
> + s32 fs_id;
> };
>
> void vpu_writel(struct vpu_dev *vpu, u32 reg, u32 val);
> diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
> index 940e5bda5fa3..497ae4e8a229 100644
> --- a/drivers/media/platform/amphion/vpu_dbg.c
> +++ b/drivers/media/platform/amphion/vpu_dbg.c
> @@ -48,6 +48,7 @@ static char *vpu_stat_name[] = {
> [VPU_BUF_STATE_READY] = "ready",
> [VPU_BUF_STATE_SKIP] = "skip",
> [VPU_BUF_STATE_ERROR] = "error",
> + [VPU_BUF_STATE_CHANGED] = "changed",
> };
>
> static inline const char *to_vpu_stat_name(int state)
> @@ -164,6 +165,7 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
> for (i = 0; i < vb2_get_num_buffers(vq); i++) {
> struct vb2_buffer *vb;
> struct vb2_v4l2_buffer *vbuf;
> + struct vpu_vb2_buffer *vpu_buf;
>
> vb = vb2_get_buffer(vq, i);
> if (!vb)
> @@ -173,13 +175,24 @@ static int vpu_dbg_instance(struct seq_file *s, void *data)
> continue;
>
> vbuf = to_vb2_v4l2_buffer(vb);
> + vpu_buf = to_vpu_vb2_buffer(vbuf);
>
> num = scnprintf(str, sizeof(str),
> - "capture[%2d] state = %10s, %8s\n",
> + "capture[%2d] state = %10s, %8s",
> i, vb2_stat_name[vb->state],
> to_vpu_stat_name(vpu_get_buffer_state(vbuf)));
> if (seq_write(s, str, num))
> return 0;
> +
> + if (vpu_buf->fs_id >= 0) {
> + num = scnprintf(str, sizeof(str), "; fs %d", vpu_buf->fs_id);
> + if (seq_write(s, str, num))
> + return 0;
> + }
> +
> + num = scnprintf(str, sizeof(str), "\n");
> + if (seq_write(s, str, num))
> + return 0;
> }
>
> num = scnprintf(str, sizeof(str), "sequence = %d\n", inst->sequence);
> diff --git a/drivers/media/platform/amphion/vpu_v4l2.c b/drivers/media/platform/amphion/vpu_v4l2.c
> index 45707931bc4f..74668fa362e2 100644
> --- a/drivers/media/platform/amphion/vpu_v4l2.c
> +++ b/drivers/media/platform/amphion/vpu_v4l2.c
> @@ -501,14 +501,25 @@ static int vpu_vb2_queue_setup(struct vb2_queue *vq,
> call_void_vop(inst, release);
> }
>
> + if (V4L2_TYPE_IS_CAPTURE(vq->type))
> + call_void_vop(inst, reset_frame_store);
> +
> return 0;
> }
>
> static int vpu_vb2_buf_init(struct vb2_buffer *vb)
> {
> struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
> + struct vpu_vb2_buffer *vpu_buf = to_vpu_vb2_buffer(vbuf);
> + struct vpu_inst *inst = vb2_get_drv_priv(vb->vb2_queue);
>
> + vpu_buf->fs_id = -1;
> vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
> +
> + if (!inst->ops->attach_frame_store || V4L2_TYPE_IS_OUTPUT(vb->type))
> + return 0;
> +
> + call_void_vop(inst, attach_frame_store, vb);
> return 0;
> }
>
Just a general question, was the choice for a flexible array because the IP does
not provide enough per-codec information to calculate the number of needed slots
or to actually avoid needing to do per codec array sizing ?
Nicolas
