* [v4l-utils PATCH v2 0/4] Add fwht stateless decoder
@ 2019-02-17 13:42 Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 1/4] v4l2-ctl: move stateful m2m decode code to a separate function Dafna Hirschfeld
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Dafna Hirschfeld @ 2019-02-17 13:42 UTC (permalink / raw)
To: linux-media; +Cc: hverkuil, helen.koike, Dafna Hirschfeld
Changes from v1:
- patches 1,2 did not change
- patches 3,4 changed, main change was removing the header
from the compressed frame buffer.
Dafna Hirschfeld (4):
v4l2-ctl: move stateful m2m decode code to a separate function
(c)v4l-helpers.h: Add support for the request api
v4l2-ctl: Add functions and variables to support fwht stateless
decoder
v4l2-ctl: Add implementation for the stateless fwht decoder.
utils/common/cv4l-helpers.h | 5 +
utils/common/v4l-helpers.h | 22 ++
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 449 +++++++++++++++++++++++---
3 files changed, 429 insertions(+), 47 deletions(-)
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread
* [v4l-utils PATCH v2 1/4] v4l2-ctl: move stateful m2m decode code to a separate function
2019-02-17 13:42 [v4l-utils PATCH v2 0/4] Add fwht stateless decoder Dafna Hirschfeld
@ 2019-02-17 13:42 ` Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 2/4] (c)v4l-helpers.h: Add support for the request api Dafna Hirschfeld
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Dafna Hirschfeld @ 2019-02-17 13:42 UTC (permalink / raw)
To: linux-media; +Cc: hverkuil, helen.koike, Dafna Hirschfeld
Add the function stateful_m2m that implements the stateful
codec api.
This is a preparation for having both stateful and stateless
implementations
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 95 ++++++++++++++-------------
1 file changed, 50 insertions(+), 45 deletions(-)
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 766872b5..40ddc1c3 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1933,16 +1933,12 @@ static int capture_setup(cv4l_fd &fd, cv4l_queue &in, cv4l_fd *exp_fd)
return 0;
}
-static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
+static void stateful_m2m(cv4l_fd &fd, cv4l_queue &in, cv4l_queue &out,
+ FILE *fin, FILE *fout, cv4l_fd *exp_fd_p)
{
int fd_flags = fcntl(fd.g_fd(), F_GETFL);
- cv4l_queue in(fd.g_type(), memory);
- cv4l_queue out(v4l_type_invert(fd.g_type()), out_memory);
- cv4l_queue exp_q(exp_fd.g_type(), V4L2_MEMORY_MMAP);
- cv4l_fd *exp_fd_p = NULL;
fps_timestamps fps_ts[2];
unsigned count[2] = { 0, 0 };
- FILE *file[2] = {NULL, NULL};
fd_set fds[3];
fd_set *rd_fds = &fds[0]; /* for capture */
fd_set *ex_fds = &fds[1]; /* for capture */
@@ -1953,19 +1949,6 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
fd.g_fmt(fmt[OUT], out.g_type());
fd.g_fmt(fmt[CAP], in.g_type());
- if (!fd.has_vid_m2m()) {
- fprintf(stderr, "unsupported m2m stream type\n");
- return;
- }
- if (options[OptStreamDmaBuf] && options[OptStreamOutDmaBuf]) {
- fprintf(stderr, "--stream-dmabuf and --stream-out-dmabuf not supported for m2m devices\n");
- return;
- }
- if ((options[OptStreamDmaBuf] || options[OptStreamOutDmaBuf]) && exp_fd.g_fd() < 0) {
- fprintf(stderr, "--stream-dmabuf or --stream-out-dmabuf can only work in combination with --export-device\n");
- return;
- }
-
struct v4l2_event_subscription sub;
memset(&sub, 0, sizeof(sub));
@@ -1986,34 +1969,18 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
sub.type = V4L2_EVENT_SOURCE_CHANGE;
bool have_source_change = !fd.subscribe_event(sub);
- file[CAP] = open_output_file(fd);
- file[OUT] = open_input_file(fd, out.g_type());
-
if (out.reqbufs(&fd, reqbufs_count_out))
- goto done;
-
- if (options[OptStreamDmaBuf]) {
- if (exp_q.reqbufs(&exp_fd, reqbufs_count_cap))
- goto done;
- exp_fd_p = &exp_fd;
- }
-
- if (options[OptStreamOutDmaBuf]) {
- if (exp_q.reqbufs(&exp_fd, reqbufs_count_out))
- goto done;
- if (out.export_bufs(&exp_fd, exp_fd.g_type()))
- goto done;
- }
+ return;
- if (do_setup_out_buffers(fd, out, file[OUT], true))
- goto done;
+ if (do_setup_out_buffers(fd, out, fout, true))
+ return;
if (fd.streamon(out.g_type()))
- goto done;
+ return;
if (codec_type != DECODER || !have_source_change)
if (capture_setup(fd, in, exp_fd_p))
- goto done;
+ return;
fps_ts[CAP].determine_field(fd.g_fd(), in.g_type());
fps_ts[OUT].determine_field(fd.g_fd(), out.g_type());
@@ -2049,15 +2016,15 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
continue;
fprintf(stderr, "select error: %s\n",
strerror(errno));
- goto done;
+ return;
}
if (r == 0) {
fprintf(stderr, "select timeout\n");
- goto done;
+ return;
}
if (rd_fds && FD_ISSET(fd.g_fd(), rd_fds)) {
- r = do_handle_cap(fd, in, file[CAP], NULL,
+ r = do_handle_cap(fd, in, fin, NULL,
count[CAP], fps_ts[CAP], fmt[CAP]);
if (r < 0) {
rd_fds = NULL;
@@ -2069,7 +2036,7 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
}
if (wr_fds && FD_ISSET(fd.g_fd(), wr_fds)) {
- r = do_handle_out(fd, out, file[OUT], NULL,
+ r = do_handle_out(fd, out, fout, NULL,
count[OUT], fps_ts[OUT], fmt[OUT]);
if (r < 0) {
wr_fds = NULL;
@@ -2120,7 +2087,7 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
in_source_change_event = false;
last_buffer = false;
if (capture_setup(fd, in, exp_fd_p))
- goto done;
+ return;
fd.g_fmt(fmt[OUT], out.g_type());
fd.g_fmt(fmt[CAP], in.g_type());
cap_streaming = true;
@@ -2138,7 +2105,45 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
in.free(&fd);
out.free(&fd);
tpg_free(&tpg);
+}
+
+static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
+{
+ cv4l_queue in(fd.g_type(), memory);
+ cv4l_queue out(v4l_type_invert(fd.g_type()), out_memory);
+ cv4l_queue exp_q(exp_fd.g_type(), V4L2_MEMORY_MMAP);
+ cv4l_fd *exp_fd_p = NULL;
+ FILE *file[2] = {NULL, NULL};
+
+ if (!fd.has_vid_m2m()) {
+ fprintf(stderr, "unsupported m2m stream type\n");
+ return;
+ }
+ if (options[OptStreamDmaBuf] && options[OptStreamOutDmaBuf]) {
+ fprintf(stderr, "--stream-dmabuf and --stream-out-dmabuf not supported for m2m devices\n");
+ return;
+ }
+ if ((options[OptStreamDmaBuf] || options[OptStreamOutDmaBuf]) && exp_fd.g_fd() < 0) {
+ fprintf(stderr, "--stream-dmabuf or --stream-out-dmabuf can only work in combination with --export-device\n");
+ return;
+ }
+ file[CAP] = open_output_file(fd);
+ file[OUT] = open_input_file(fd, out.g_type());
+
+ if (options[OptStreamDmaBuf]) {
+ if (exp_q.reqbufs(&exp_fd, reqbufs_count_cap))
+ return;
+ exp_fd_p = &exp_fd;
+ }
+
+ if (options[OptStreamOutDmaBuf]) {
+ if (exp_q.reqbufs(&exp_fd, reqbufs_count_out))
+ return;
+ if (out.export_bufs(&exp_fd, exp_fd.g_type()))
+ return;
+ }
+ stateful_m2m(fd, in, out, file[CAP], file[OUT], exp_fd_p);
done:
if (options[OptStreamDmaBuf] || options[OptStreamOutDmaBuf])
exp_q.close_exported_fds();
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [v4l-utils PATCH v2 2/4] (c)v4l-helpers.h: Add support for the request api
2019-02-17 13:42 [v4l-utils PATCH v2 0/4] Add fwht stateless decoder Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 1/4] v4l2-ctl: move stateful m2m decode code to a separate function Dafna Hirschfeld
@ 2019-02-17 13:42 ` Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 3/4] v4l2-ctl: Add functions and variables to support fwht stateless decoder Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 4/4] v4l2-ctl: Add implementation for the stateless fwht decoder Dafna Hirschfeld
3 siblings, 0 replies; 5+ messages in thread
From: Dafna Hirschfeld @ 2019-02-17 13:42 UTC (permalink / raw)
To: linux-media; +Cc: hverkuil, helen.koike, Dafna Hirschfeld
Add an array of request file descriptors to v4l_queue
and add methods to allocate and get them.
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
utils/common/cv4l-helpers.h | 5 +++++
utils/common/v4l-helpers.h | 22 ++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/utils/common/cv4l-helpers.h b/utils/common/cv4l-helpers.h
index 1cd2b6b2..551d4673 100644
--- a/utils/common/cv4l-helpers.h
+++ b/utils/common/cv4l-helpers.h
@@ -745,6 +745,7 @@ public:
unsigned g_capabilities() const { return v4l_queue_g_capabilities(this); }
unsigned g_length(unsigned plane) const { return v4l_queue_g_length(this, plane); }
unsigned g_mem_offset(unsigned index, unsigned plane) const { return v4l_queue_g_mem_offset(this, index, plane); }
+ unsigned g_req_fd(unsigned index) const { return v4l_queue_g_req_fd(this, index); }
void *g_mmapping(unsigned index, unsigned plane) const { return v4l_queue_g_mmapping(this, index, plane); }
void s_mmapping(unsigned index, unsigned plane, void *m) { v4l_queue_s_mmapping(this, index, plane, m); }
void *g_userptr(unsigned index, unsigned plane) const { return v4l_queue_g_userptr(this, index, plane); }
@@ -797,6 +798,10 @@ public:
{
return v4l_queue_export_bufs(fd->g_v4l_fd(), this, exp_type);
}
+ int alloc_req(int media_fd, unsigned index)
+ {
+ return v4l_queue_alloc_req(this, media_fd, index);
+ }
void close_exported_fds()
{
v4l_queue_close_exported_fds(this);
diff --git a/utils/common/v4l-helpers.h b/utils/common/v4l-helpers.h
index 59d8566a..daa49a1f 100644
--- a/utils/common/v4l-helpers.h
+++ b/utils/common/v4l-helpers.h
@@ -10,6 +10,7 @@
#define _V4L_HELPERS_H_
#include <linux/videodev2.h>
+#include <linux/media.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
@@ -1414,6 +1415,7 @@ struct v4l_queue {
void *mmappings[VIDEO_MAX_FRAME][VIDEO_MAX_PLANES];
unsigned long userptrs[VIDEO_MAX_FRAME][VIDEO_MAX_PLANES];
int fds[VIDEO_MAX_FRAME][VIDEO_MAX_PLANES];
+ int req_fds[VIDEO_MAX_FRAME];
};
static inline void v4l_queue_init(struct v4l_queue *q,
@@ -1445,6 +1447,11 @@ static inline __u32 v4l_queue_g_mem_offset(const struct v4l_queue *q, unsigned i
return q->mem_offsets[index][plane];
}
+static inline unsigned v4l_queue_g_req_fd(const struct v4l_queue *q, unsigned index)
+{
+ return q->req_fds[index];
+}
+
static inline void v4l_queue_s_mmapping(struct v4l_queue *q, unsigned index, unsigned plane, void *m)
{
q->mmappings[index][plane] = m;
@@ -1701,6 +1708,21 @@ static inline int v4l_queue_export_bufs(struct v4l_fd *f, struct v4l_queue *q,
return 0;
}
+static inline int v4l_queue_alloc_req(struct v4l_queue *q, int media_fd, unsigned index)
+{
+ int rc = 0;
+
+ rc = ioctl(media_fd, MEDIA_IOC_REQUEST_ALLOC, &q->req_fds[index]);
+ if (rc < 0) {
+ fprintf(stderr, "Unable to allocate media request: %s\n",
+ strerror(errno));
+ return rc;
+ }
+
+ return 0;
+}
+
+
static inline void v4l_queue_close_exported_fds(struct v4l_queue *q)
{
unsigned b, p;
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [v4l-utils PATCH v2 3/4] v4l2-ctl: Add functions and variables to support fwht stateless decoder
2019-02-17 13:42 [v4l-utils PATCH v2 0/4] Add fwht stateless decoder Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 1/4] v4l2-ctl: move stateful m2m decode code to a separate function Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 2/4] (c)v4l-helpers.h: Add support for the request api Dafna Hirschfeld
@ 2019-02-17 13:42 ` Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 4/4] v4l2-ctl: Add implementation for the stateless fwht decoder Dafna Hirschfeld
3 siblings, 0 replies; 5+ messages in thread
From: Dafna Hirschfeld @ 2019-02-17 13:42 UTC (permalink / raw)
To: linux-media; +Cc: hverkuil, helen.koike, Dafna Hirschfeld
Add the variable 'last_fwht_bf_ts' and the array 'fwht_reqs' to
allow the fwht stateless decoder to maintain the requests.
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 120 ++++++++++++++++++++++++++
1 file changed, 120 insertions(+)
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 40ddc1c3..ec43bd03 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -20,11 +20,17 @@
#include "v4l2-ctl.h"
#include "v4l-stream.h"
+#include <media-info.h>
extern "C" {
#include "v4l2-tpg.h"
}
+#define VICODEC_CID_CUSTOM_BASE (V4L2_CID_MPEG_BASE | 0xf000)
+#define VICODEC_CID_I_FRAME_QP (VICODEC_CID_CUSTOM_BASE + 0)
+#define VICODEC_CID_P_FRAME_QP (VICODEC_CID_CUSTOM_BASE + 1)
+#define VICODEC_CID_STATELESS_FWHT (VICODEC_CID_CUSTOM_BASE + 2)
+
static unsigned stream_count;
static unsigned stream_skip;
static __u32 memory = V4L2_MEMORY_MMAP;
@@ -80,6 +86,16 @@ static bool support_cap_compose;
static bool support_out_crop;
static bool in_source_change_event;
+static __u64 last_fwht_bf_ts;
+
+struct request_fwht {
+ int fd;
+ __u64 ts;
+ struct v4l2_ctrl_fwht_params params;
+};
+
+static request_fwht fwht_reqs[VIDEO_MAX_FRAME];
+
#define TS_WINDOW 241
#define FILE_HDR_ID v4l2_fourcc('V', 'h', 'd', 'r')
@@ -420,6 +436,12 @@ static int get_out_crop_rect(cv4l_fd &fd)
return 0;
}
+static __u64 get_ns_timestamp(cv4l_buffer &buf)
+{
+ const struct timeval tv = buf.g_timestamp();
+ return v4l2_timeval_to_ns(&tv);
+}
+
static void set_time_stamp(cv4l_buffer &buf)
{
if ((buf.g_flags() & V4L2_BUF_FLAG_TIMESTAMP_MASK) != V4L2_BUF_FLAG_TIMESTAMP_COPY)
@@ -749,6 +771,104 @@ void streaming_cmd(int ch, char *optarg)
}
}
+/*
+ * Assume that the fwht stream is valid and that each
+ * frame starts right after the previous one.
+ */
+static void read_fwht_frame(cv4l_fmt &fmt, unsigned char *buf,
+ FILE *fpointer, unsigned &sz,
+ unsigned &len)
+{
+ struct fwht_cframe_hdr *h = (struct fwht_cframe_hdr *)buf;
+
+ len = sizeof(struct fwht_cframe_hdr);
+ sz = fread(buf, 1, sizeof(struct fwht_cframe_hdr), fpointer);
+ if (sz < sizeof(struct fwht_cframe_hdr))
+ return;
+
+ len += ntohl(h->size);
+ sz += fread(buf + sz, 1, ntohl(h->size), fpointer);
+}
+
+static void set_fwht_stateless_params(struct v4l2_ctrl_fwht_params &fwht_params,
+ const struct fwht_cframe_hdr *hdr,
+ __u64 last_bf_ts)
+{
+ fwht_params.backward_ref_ts = last_bf_ts;
+ fwht_params.version = ntohl(hdr->version);
+ fwht_params.width = ntohl(hdr->width);
+ fwht_params.height = ntohl(hdr->height);
+ fwht_params.flags = ntohl(hdr->flags);
+ fwht_params.colorspace = ntohl(hdr->colorspace);
+ fwht_params.xfer_func = ntohl(hdr->xfer_func);
+ fwht_params.ycbcr_enc = ntohl(hdr->ycbcr_enc);
+ fwht_params.quantization = ntohl(hdr->quantization);
+ fwht_params.comp_frame_size = ntohl(hdr->size);
+
+ if (!last_bf_ts)
+ fwht_params.flags |= FWHT_FL_I_FRAME;
+}
+
+static void set_fwht_req_by_idx(unsigned idx, struct fwht_cframe_hdr *hdr,
+ int req_fd, __u64 last_bf_ts, __u64 ts)
+{
+ struct v4l2_ctrl_fwht_params fwht_params;
+
+ set_fwht_stateless_params(fwht_params, hdr, last_bf_ts);
+
+ fwht_reqs[idx].fd = req_fd;
+ fwht_reqs[idx].ts = ts;
+ fwht_reqs[idx].params = fwht_params;
+}
+
+static int get_fwht_req_by_ts(__u64 ts)
+{
+ for (int idx = 0; idx < VIDEO_MAX_FRAME; idx++) {
+ if (fwht_reqs[idx].ts == ts)
+ return idx;
+ }
+ return -1;
+}
+
+static bool set_fwht_req_by_fd(struct fwht_cframe_hdr *hdr,
+ int req_fd, __u64 last_bf_ts, __u64 ts)
+{
+ struct v4l2_ctrl_fwht_params fwht_params;
+
+ set_fwht_stateless_params(fwht_params, hdr, last_bf_ts);
+
+ for (int idx = 0; idx < VIDEO_MAX_FRAME; idx++) {
+ if (fwht_reqs[idx].fd == req_fd) {
+ fwht_reqs[idx].ts = ts;
+ fwht_reqs[idx].params = fwht_params;
+ return true;
+ }
+ }
+ return false;
+}
+
+static int set_fwht_ext_ctrl(cv4l_fd &fd, struct fwht_cframe_hdr *hdr,
+ __u64 last_bf_ts, int req_fd)
+{
+ v4l2_ext_controls controls;
+ struct v4l2_ext_control control;
+ struct v4l2_ctrl_fwht_params fwht_params;
+
+ memset(&control, 0, sizeof(control));
+ memset(&controls, 0, sizeof(controls));
+
+ set_fwht_stateless_params(fwht_params, hdr, last_bf_ts);
+
+ control.id = VICODEC_CID_STATELESS_FWHT;
+ control.ptr = &fwht_params;
+ control.size = sizeof(fwht_params);
+ controls.which = V4L2_CTRL_WHICH_REQUEST_VAL;
+ controls.request_fd = req_fd;
+ controls.controls = &control;
+ controls.count = 1;
+ return fd.s_ext_ctrls(controls);
+}
+
static void read_write_padded_frame(cv4l_fmt &fmt, unsigned char *buf,
FILE *fpointer, unsigned &sz,
unsigned &len, bool is_read)
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [v4l-utils PATCH v2 4/4] v4l2-ctl: Add implementation for the stateless fwht decoder.
2019-02-17 13:42 [v4l-utils PATCH v2 0/4] Add fwht stateless decoder Dafna Hirschfeld
` (2 preceding siblings ...)
2019-02-17 13:42 ` [v4l-utils PATCH v2 3/4] v4l2-ctl: Add functions and variables to support fwht stateless decoder Dafna Hirschfeld
@ 2019-02-17 13:42 ` Dafna Hirschfeld
3 siblings, 0 replies; 5+ messages in thread
From: Dafna Hirschfeld @ 2019-02-17 13:42 UTC (permalink / raw)
To: linux-media; +Cc: hverkuil, helen.koike, Dafna Hirschfeld
Add code to support the stateless decoder
and the function 'stateless_m2m' that implements it.
Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com>
---
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 236 +++++++++++++++++++++++++-
1 file changed, 233 insertions(+), 3 deletions(-)
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index ec43bd03..2bdee280 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -1054,8 +1054,9 @@ restart:
return false;
}
}
-
- if (support_out_crop && v4l2_fwht_find_pixfmt(fmt.g_pixelformat()))
+ if (q.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS)
+ read_fwht_frame(fmt, (unsigned char *)buf, fin, sz, len);
+ else if (support_out_crop && v4l2_fwht_find_pixfmt(fmt.g_pixelformat()))
read_write_padded_frame(fmt, (unsigned char *)buf, fin, sz, len, true);
else
sz = fread(buf, 1, len, fin);
@@ -1082,6 +1083,21 @@ restart:
return true;
}
+static bool split_fwht_frame(u8 *frame, struct fwht_cframe_hdr *hdr, unsigned max_len)
+{
+ unsigned int len;
+ bool ret = true;
+
+ memcpy(hdr, frame, sizeof(struct fwht_cframe_hdr));
+ len = ntohl(hdr->size);
+ if (len > max_len) {
+ len = max_len;
+ ret = false;
+ }
+ memmove(frame, frame + sizeof(struct fwht_cframe_hdr), len);
+ return ret;
+}
+
static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf)
{
tpg_pixel_aspect aspect = TPG_PIXEL_ASPECT_SQUARE;
@@ -1186,6 +1202,35 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
if (fin && !fill_buffer_from_file(fd, q, buf, fmt, fin))
return -2;
+ struct fwht_cframe_hdr hdr;
+
+ if (q.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS) {
+ int media_fd = mi_get_media_fd(fd.g_fd());
+
+ if (!split_fwht_frame((u8 *)q.g_dataptr(buf.g_index(), 0),
+ &hdr, buf.g_length(0)))
+ fprintf(stderr, "%s: warning: size field in fwht header is larger than buf size\n",
+ __func__);
+
+ if (media_fd < 0) {
+ fprintf(stderr, "%s: mi_get_media_fd failed\n", __func__);
+ return media_fd;
+ }
+
+ if (q.alloc_req(media_fd, i)) {
+ fprintf(stderr, "%s: q.alloc_req failed\n", __func__);
+ return -1;
+ }
+ buf.s_request_fd(q.g_req_fd(i));
+ buf.or_flags(V4L2_BUF_FLAG_REQUEST_FD);
+
+ if (set_fwht_ext_ctrl(fd, &hdr, last_fwht_bf_ts,
+ buf.g_request_fd())) {
+ fprintf(stderr, "%s: set_fwht_ext_ctrls failed on %dth buf: %s\n",
+ __func__, i, strerror(errno));
+ return -1;
+ }
+ }
if (qbuf) {
set_time_stamp(buf);
if (fd.qbuf(buf))
@@ -1195,6 +1240,16 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q, FILE *fin, bool qbuf
fprintf(stderr, ">");
fflush(stderr);
}
+ if (q.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS) {
+ set_fwht_req_by_idx(i, &hdr, q.g_req_fd(i),
+ last_fwht_bf_ts, get_ns_timestamp(buf));
+ last_fwht_bf_ts = get_ns_timestamp(buf);
+ if (ioctl(q.g_req_fd(i), MEDIA_REQUEST_IOC_QUEUE) < 0) {
+ fprintf(stderr, "Unable to queue media request: %s\n",
+ strerror(errno));
+ return -1;
+ }
+ }
}
if (qbuf)
output_field = field;
@@ -1433,12 +1488,48 @@ static int do_handle_out(cv4l_fd &fd, cv4l_queue &q, FILE *fin, cv4l_buffer *cap
(u8 *)q.g_dataptr(buf.g_index(), j));
}
+ struct fwht_cframe_hdr hdr;
+
+ if (q.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS) {
+ if (ioctl(buf.g_request_fd(), MEDIA_REQUEST_IOC_REINIT, NULL)) {
+ fprintf(stderr, "Unable to reinit media request: %s\n",
+ strerror(errno));
+ return -1;
+ }
+ if (!split_fwht_frame((u8 *)q.g_dataptr(buf.g_index(), 0), &hdr, buf.g_length(0)))
+ fprintf(stderr, "%s: warning: size field in fwht header is larger than buf size\n",
+ __func__);
+
+ if (set_fwht_ext_ctrl(fd, &hdr, last_fwht_bf_ts,
+ buf.g_request_fd())) {
+ fprintf(stderr, "%s: set_fwht_ext_ctrls failed: %s\n",
+ __func__, strerror(errno));
+ return -1;
+ }
+ }
+
set_time_stamp(buf);
if (fd.qbuf(buf)) {
fprintf(stderr, "%s: failed: %s\n", "VIDIOC_QBUF", strerror(errno));
return -1;
}
+ if (q.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS) {
+ if (!set_fwht_req_by_fd(&hdr, buf.g_request_fd(), last_fwht_bf_ts,
+ get_ns_timestamp(buf))) {
+ fprintf(stderr, "%s: request for fd %d does not exist\n",
+ __func__, buf.g_request_fd());
+ return -1;
+ }
+
+ last_fwht_bf_ts = get_ns_timestamp(buf);
+ if (ioctl(buf.g_request_fd(), MEDIA_REQUEST_IOC_QUEUE) < 0) {
+ fprintf(stderr, "Unable to queue media request: %s\n",
+ strerror(errno));
+ return -1;
+ }
+ }
+
tpg_update_mv_count(&tpg, V4L2_FIELD_HAS_T_OR_B(output_field));
if (!verbose)
@@ -2227,6 +2318,140 @@ static void stateful_m2m(cv4l_fd &fd, cv4l_queue &in, cv4l_queue &out,
tpg_free(&tpg);
}
+static void stateless_m2m(cv4l_fd &fd, cv4l_queue &in, cv4l_queue &out,
+ FILE *fin, FILE *fout, cv4l_fd *exp_fd_p)
+{
+ fps_timestamps fps_ts[2];
+ unsigned count[2] = { 0, 0 };
+ cv4l_fmt fmt[2];
+ int fd_flags = fcntl(fd.g_fd(), F_GETFL);
+
+ fd.g_fmt(fmt[OUT], out.g_type());
+ fd.g_fmt(fmt[CAP], in.g_type());
+
+ if (out.reqbufs(&fd, reqbufs_count_out)) {
+ fprintf(stderr, "%s: out.reqbufs failed\n", __func__);
+ return;
+ }
+
+ if (in.reqbufs(&fd, reqbufs_count_cap)) {
+ fprintf(stderr, "%s: in.reqbufs failed\n", __func__);
+ return;
+ }
+
+ if (exp_fd_p && in.export_bufs(exp_fd_p, exp_fd_p->g_type()))
+ return;
+
+ if (in.obtain_bufs(&fd)) {
+ fprintf(stderr, "%s: in.obtain_bufs error\n", __func__);
+ return;
+ }
+
+ if (do_setup_out_buffers(fd, out, fout, true)) {
+ fprintf(stderr, "%s: do_setup_out_buffers failed\n", __func__);
+ return;
+ }
+
+ if (in.queue_all(&fd)) {
+ fprintf(stderr, "%s: in.queue_all failed\n", __func__);
+ return;
+ }
+
+ if (fd.streamon(out.g_type())) {
+ fprintf(stderr, "%s: streamon for out failed\n", __func__);
+ return;
+ }
+
+ if (fd.streamon(in.g_type())) {
+ fprintf(stderr, "%s: streamon for in failed\n", __func__);
+ return;
+ }
+ int index = 0;
+ bool queue_lst_buf = false;
+ cv4l_buffer last_in_buf;
+
+ fcntl(fd.g_fd(), F_SETFL, fd_flags | O_NONBLOCK);
+
+ while (true) {
+ fd_set except_fds;
+ int req_fd = out.g_req_fd(index);
+ struct timeval tv = { 2, 0 };
+
+ FD_ZERO(&except_fds);
+ FD_SET(req_fd, &except_fds);
+
+ int rc = select(req_fd + 1, NULL, NULL, &except_fds, &tv);
+
+ if (rc == 0) {
+ fprintf(stderr, "Timeout when waiting for media request\n");
+ return;
+ } else if (rc < 0) {
+ fprintf(stderr, "Unable to select media request: %s\n",
+ strerror(errno));
+ return;
+ }
+ /*
+ * it is safe to queue back last cap buffer only after
+ * the following request is done so that the buffer
+ * is not needed anymore as a reference frame
+ */
+ if (queue_lst_buf) {
+ if (fd.qbuf(last_in_buf) < 0) {
+ fprintf(stderr, "%s: qbuf failed\n", __func__);
+ return;
+ }
+ }
+ int buf_idx = -1;
+ /*
+ * fin is not sent to do_handle_cap since the capture buf is
+ * written to the file in current function
+ */
+ rc = do_handle_cap(fd, in, NULL, &buf_idx, count[CAP],
+ fps_ts[CAP], fmt[CAP]);
+ if (rc) {
+ fprintf(stderr, "%s: do_handle_cap err\n", __func__);
+ return;
+ }
+ /*
+ * in case of an error in the frame, set last ts to 0 as a mean
+ * to recover so that next request will not use a
+ * reference buffer. Otherwise the error flag will be set to
+ * all the future capture buffers.
+ */
+ if (buf_idx == -1) {
+ fprintf(stderr, "%s: frame returned with error\n", __func__);
+ last_fwht_bf_ts = 0;
+ } else {
+ cv4l_buffer cap_buf(in, index);
+ if (fd.querybuf(cap_buf))
+ return;
+ last_in_buf = cap_buf;
+ queue_lst_buf = true;
+ if (fin && cap_buf.g_bytesused(0) &&
+ !(cap_buf.g_flags() & V4L2_BUF_FLAG_ERROR)) {
+ int idx = get_fwht_req_by_ts(get_ns_timestamp(cap_buf));
+
+ if (idx < 0) {
+ fprintf(stderr, "%s: could not find request from buffer\n", __func__);
+ fprintf(stderr, "%s: ts = %llu\n", __func__, get_ns_timestamp(cap_buf));
+ return;
+ }
+ composed_width = fwht_reqs[idx].params.width;
+ composed_height = fwht_reqs[idx].params.height;
+ write_buffer_to_file(fd, in, cap_buf,
+ fmt[CAP], fin);
+ }
+ }
+ rc = do_handle_out(fd, out, fout, NULL, count[OUT],
+ fps_ts[OUT], fmt[OUT]);
+ if (rc) {
+ fprintf(stderr, "%s: output stream ended\n", __func__);
+ close(req_fd);
+ }
+ index = (index + 1) % out.g_buffers();
+ }
+}
+
static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
{
cv4l_queue in(fd.g_type(), memory);
@@ -2263,7 +2488,12 @@ static void streaming_set_m2m(cv4l_fd &fd, cv4l_fd &exp_fd)
if (out.export_bufs(&exp_fd, exp_fd.g_type()))
return;
}
- stateful_m2m(fd, in, out, file[CAP], file[OUT], exp_fd_p);
+ if (out.reqbufs(&fd, 0))
+ goto done;
+ if (out.g_capabilities() & V4L2_BUF_CAP_SUPPORTS_REQUESTS)
+ stateless_m2m(fd, in, out, file[CAP], file[OUT], exp_fd_p);
+ else
+ stateful_m2m(fd, in, out, file[CAP], file[OUT], exp_fd_p);
done:
if (options[OptStreamDmaBuf] || options[OptStreamOutDmaBuf])
exp_q.close_exported_fds();
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-02-17 13:42 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-02-17 13:42 [v4l-utils PATCH v2 0/4] Add fwht stateless decoder Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 1/4] v4l2-ctl: move stateful m2m decode code to a separate function Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 2/4] (c)v4l-helpers.h: Add support for the request api Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 3/4] v4l2-ctl: Add functions and variables to support fwht stateless decoder Dafna Hirschfeld
2019-02-17 13:42 ` [v4l-utils PATCH v2 4/4] v4l2-ctl: Add implementation for the stateless fwht decoder Dafna Hirschfeld
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