Support crop and compose selection.
If the driver supports crop/compose then the raw frame is arranged
inside a padded buffer.
Signed-off-by: Dafna Hirschfeld <daf...@gmail.com>
---
utils/common/codec-fwht.patch | 8 +-
utils/common/v4l-stream.c | 14 +--
utils/common/v4l-stream.h | 6 +-
utils/qvidcap/capture.cpp | 2 +
utils/v4l2-ctl/v4l2-ctl-streaming.cpp | 137 ++++++++++++++++++++++++--
5 files changed, 146 insertions(+), 21 deletions(-)
diff --git a/utils/common/codec-fwht.patch b/utils/common/codec-fwht.patch
index 4d41225b..37ac4672 100644
--- a/utils/common/codec-fwht.patch
+++ b/utils/common/codec-fwht.patch
@@ -1,6 +1,6 @@
---- a/utils/common/codec-fwht.h.old 2018-11-23 13:43:52.713731559 +0100
-+++ b/utils/common/codec-fwht.h 2018-11-23 13:47:55.484198283 +0100
-@@ -8,8 +8,24 @@
+--- a/utils/common/codec-fwht.h.old 2018-12-29 11:23:58.128328613 -0800
++++ b/utils/common/codec-fwht.h 2018-12-29 11:24:16.099127560 -0800
+@@ -8,8 +8,26 @@
#define CODEC_FWHT_H
#include <linux/types.h>
@@ -17,6 +17,8 @@
+#define GENMASK(h, l) \
+ (((~0UL) - (1UL << (l)) + 1) & (~0UL >> ((8 * sizeof(long)) - 1 - (h))))
+#define pr_err(arg...)
++#define __round_mask(x, y) ((__typeof__(x))((y)-1))
++#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+
+
+typedef __u32 u32;
diff --git a/utils/common/v4l-stream.c b/utils/common/v4l-stream.c
index 9f842e21..a1cabadb 100644
--- a/utils/common/v4l-stream.c
+++ b/utils/common/v4l-stream.c
@@ -171,25 +171,28 @@ unsigned rle_compress(__u8 *b, unsigned size, unsigned
bpl)
return (__u8 *)dst - b;
}
-struct codec_ctx *fwht_alloc(unsigned pixfmt, unsigned w, unsigned h,
+struct codec_ctx *fwht_alloc(unsigned pixfmt, unsigned visible_width, unsigned
visible_height,
+ unsigned coded_width, unsigned coded_height,
unsigned field, unsigned colorspace, unsigned
xfer_func,
unsigned ycbcr_enc, unsigned quantization)
{
struct codec_ctx *ctx;
const struct v4l2_fwht_pixfmt_info *info =
v4l2_fwht_find_pixfmt(pixfmt);
unsigned int chroma_div;
- unsigned int size = w * h;
+ unsigned int size = coded_width * coded_height;
// fwht expects macroblock alignment, check can be dropped once that
// restriction is lifted.
- if (!info || w % 8 || h % 8)
+ if (!info || coded_width % 8 || coded_height % 8)
return NULL;
ctx = malloc(sizeof(*ctx));
if (!ctx)
return NULL;
- ctx->state.width = w;
- ctx->state.height = h;
+ ctx->state.coded_width = coded_width;
+ ctx->state.coded_height = coded_height;
+ ctx->state.visible_width = visible_width;
+ ctx->state.visible_height = visible_height;
ctx->state.info = info;
ctx->field = field;
ctx->state.colorspace = colorspace;
@@ -208,7 +211,6 @@ struct codec_ctx *fwht_alloc(unsigned pixfmt, unsigned w,
unsigned h,
free(ctx);
return NULL;
}
- ctx->state.ref_frame.width = ctx->state.ref_frame.height = 0;
ctx->state.ref_frame.cb = ctx->state.ref_frame.luma + size;
ctx->state.ref_frame.cr = ctx->state.ref_frame.cb + size / chroma_div;
ctx->state.ref_frame.alpha = ctx->state.ref_frame.cr + size /
chroma_div;
diff --git a/utils/common/v4l-stream.h b/utils/common/v4l-stream.h
index c235150b..fe5dfe90 100644
--- a/utils/common/v4l-stream.h
+++ b/utils/common/v4l-stream.h
@@ -9,12 +9,13 @@
#define _V4L_STREAM_H_
#include <linux/videodev2.h>
-#include <codec-v4l2-fwht.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
+#include <codec-v4l2-fwht.h>
+
/* Default port */
#define V4L_STREAM_PORT 8362
@@ -145,7 +146,8 @@ struct codec_ctx {
unsigned rle_compress(__u8 *buf, unsigned size, unsigned bytesperline);
void rle_decompress(__u8 *buf, unsigned size, unsigned rle_size, unsigned
bytesperline);
-struct codec_ctx *fwht_alloc(unsigned pixfmt, unsigned w, unsigned h, unsigned
field,
+struct codec_ctx *fwht_alloc(unsigned pixfmt, unsigned visible_width, unsigned
visible_height,
+ unsigned coded_width, unsigned coded_height,
unsigned field,
unsigned colorspace, unsigned xfer_func, unsigned
ycbcr_enc,
unsigned quantization);
void fwht_free(struct codec_ctx *ctx);
diff --git a/utils/qvidcap/capture.cpp b/utils/qvidcap/capture.cpp
index 8c11ac53..e04db6be 100644
--- a/utils/qvidcap/capture.cpp
+++ b/utils/qvidcap/capture.cpp
@@ -749,6 +749,7 @@ void CaptureWin::setModeSocket(int socket, int port)
if (m_ctx)
free(m_ctx);
m_ctx = fwht_alloc(m_v4l_fmt.g_pixelformat(), m_v4l_fmt.g_width(),
m_v4l_fmt.g_height(),
+ m_v4l_fmt.g_width(), m_v4l_fmt.g_height(),
m_v4l_fmt.g_field(), m_v4l_fmt.g_colorspace(),
m_v4l_fmt.g_xfer_func(),
m_v4l_fmt.g_ycbcr_enc(), m_v4l_fmt.g_quantization());
@@ -1114,6 +1115,7 @@ void CaptureWin::listenForNewConnection()
if (m_ctx)
free(m_ctx);
m_ctx = fwht_alloc(fmt.g_pixelformat(), fmt.g_width(), fmt.g_height(),
+ fmt.g_width(), fmt.g_height(),
fmt.g_field(), fmt.g_colorspace(), fmt.g_xfer_func(),
fmt.g_ycbcr_enc(), fmt.g_quantization());
setPixelAspect(pixelaspect);
diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 79e015ce..cc714008 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -20,7 +20,6 @@
#include "v4l2-ctl.h"
#include "v4l-stream.h"
-#include "codec-fwht.h"
extern "C" {
#include "v4l2-tpg.h"
@@ -73,6 +72,13 @@ static unsigned bpl_out[VIDEO_MAX_PLANES];
static bool last_buffer = false;
static codec_ctx *ctx;
+static unsigned int cropped_width = 0;
+static unsigned int cropped_height = 0;
+static unsigned int composed_width = 0;
+static unsigned int composed_height = 0;
+static bool support_cap_compose = false;
+static bool support_out_crop = false;
+
#define TS_WINDOW 241
#define FILE_HDR_ID v4l2_fourcc('V', 'h', 'd', 'r')
@@ -657,7 +663,57 @@ void streaming_cmd(int ch, char *optarg)
}
}
-static bool fill_buffer_from_file(cv4l_queue &q, cv4l_buffer &b, FILE *fin)
+static void read_write_padded_frame(cv4l_fmt &fmt, unsigned char* buf, FILE
*fpointer,
+ unsigned &sz, unsigned &len, bool is_read)
+{
+ const struct v4l2_fwht_pixfmt_info *vic_fmt =
v4l2_fwht_find_pixfmt(fmt.g_pixelformat());
+ unsigned coded_width = fmt.g_width();
+ unsigned coded_height = fmt.g_height();
+ unsigned real_width;
+ unsigned real_height;
+ unsigned char *buf_p = buf;
+
+ if (is_read) {
+ real_width = cropped_width;
+ real_height = cropped_height;
+ }
+ else {
+ real_width = composed_width;
+ real_height = composed_height;
+ }
+
+ sz = 0;
+ len = real_width * real_height * vic_fmt->sizeimage_mult /
vic_fmt->sizeimage_div;
+
+ for (unsigned plane_idx = 0; plane_idx < vic_fmt->planes_num;
plane_idx++) {
+ unsigned h_div = (plane_idx == 0 || plane_idx == 3) ? 1 :
vic_fmt->height_div;
+ unsigned w_div = (plane_idx == 0 || plane_idx == 3) ? 1 :
vic_fmt->width_div;
+ unsigned step = (plane_idx == 0 || plane_idx == 3) ?
vic_fmt->luma_alpha_step : vic_fmt->chroma_step;
+
+ for (unsigned i=0; i < real_height/h_div; i++) {
+ unsigned int wsz = 0;
+ unsigned int consume_sz = step * real_width / w_div;
+
+ if (is_read)
+ wsz = fread(buf_p, 1, consume_sz, fpointer);
+ else
+ wsz = fwrite(buf_p, 1, consume_sz, fpointer);
+ if (wsz == 0 && i == 0 && plane_idx == 0)
+ break;
+ if (wsz != consume_sz) {
+ fprintf(stderr, "padding: needed %u bytes, got
%u\n",consume_sz, wsz);
+ return;
+ }
+ sz += wsz;
+ buf_p += step * coded_width / w_div;
+ }
+ buf_p += (step * coded_width / w_div) * (coded_height -
real_height) / h_div;
+ if(sz == 0)
+ break;
+ }
+}
+
+static bool fill_buffer_from_file(cv4l_fd &fd, cv4l_queue &q, cv4l_buffer &b,
FILE *fin)
{
static bool first = true;
static bool is_fwht = false;
@@ -776,6 +832,8 @@ restart:
void *buf = q.g_dataptr(b.g_index(), j);
unsigned len = q.g_length(j);
unsigned sz;
+ cv4l_fmt fmt;
+ fd.g_fmt(fmt, q.g_type());
if (from_with_hdr) {
len = read_u32(fin);
@@ -785,7 +843,12 @@ restart:
return false;
}
}
- sz = fread(buf, 1, len, fin);
+
+ 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);
+
if (first && sz != len) {
fprintf(stderr, "Insufficient data\n");
return false;
@@ -908,7 +971,7 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q,
FILE *fin, bool qbuf
tpg_fillbuffer(&tpg, stream_out_std, j,
(u8 *)q.g_dataptr(i, j));
}
}
- if (fin && !fill_buffer_from_file(q, buf, fin))
+ if (fin && !fill_buffer_from_file(fd, q, buf, fin))
return -2;
if (qbuf) {
@@ -926,7 +989,7 @@ static int do_setup_out_buffers(cv4l_fd &fd, cv4l_queue &q,
FILE *fin, bool qbuf
return 0;
}
-static void write_buffer_to_file(cv4l_queue &q, cv4l_buffer &buf, FILE *fout)
+static void write_buffer_to_file(cv4l_fd &fd, cv4l_queue &q, cv4l_buffer &buf,
FILE *fout)
{
#ifndef NO_STREAM_TO
unsigned comp_size[VIDEO_MAX_PLANES];
@@ -967,6 +1030,8 @@ static void write_buffer_to_file(cv4l_queue &q,
cv4l_buffer &buf, FILE *fout)
__u32 used = buf.g_bytesused();
unsigned offset = buf.g_data_offset();
unsigned sz;
+ cv4l_fmt fmt;
+ fd.g_fmt(fmt, q.g_type());
if (offset > used) {
// Should never happen
@@ -985,6 +1050,9 @@ static void write_buffer_to_file(cv4l_queue &q,
cv4l_buffer &buf, FILE *fout)
}
if (host_fd_to >= 0)
sz = fwrite(comp_ptr[j] + offset, 1, used, fout);
+ else if (support_cap_compose &&
v4l2_fwht_find_pixfmt(fmt.g_pixelformat()))
+ read_write_padded_frame(fmt, (u8
*)q.g_dataptr(buf.g_index(), j) + offset,
+ fout, sz, used, false);
else
sz = fwrite((u8 *)q.g_dataptr(buf.g_index(), j) +
offset, 1, used, fout);
@@ -1036,7 +1104,7 @@ static int do_handle_cap(cv4l_fd &fd, cv4l_queue &q, FILE
*fout, int *index,
if (fout && (!stream_skip || ignore_count_skip) &&
buf.g_bytesused(0) && !(buf.g_flags() & V4L2_BUF_FLAG_ERROR))
- write_buffer_to_file(q, buf, fout);
+ write_buffer_to_file(fd, q, buf, fout);
if (buf.g_flags() & V4L2_BUF_FLAG_KEYFRAME)
ch = 'K';
@@ -1135,7 +1203,7 @@ static int do_handle_out(cv4l_fd &fd, cv4l_queue &q, FILE
*fin, cv4l_buffer *cap
output_field = V4L2_FIELD_TOP;
}
- if (fin && !fill_buffer_from_file(q, buf, fin))
+ if (fin && !fill_buffer_from_file(fd, q, buf, fin))
return -2;
if (!fin && stream_out_refresh) {
@@ -1333,10 +1401,15 @@ recover:
write_u32(fout, cfmt.g_bytesperline(i));
bpl_cap[i] = rle_calc_bpl(cfmt.g_bytesperline(i),
cfmt.g_pixelformat());
}
- if (!host_lossless)
- ctx = fwht_alloc(cfmt.g_pixelformat(), cfmt.g_width(),
cfmt.g_height(),
+ if (!host_lossless) {
+ unsigned visible_width = support_cap_compose ?
composed_width : cfmt.g_width();
+ unsigned visible_height = support_cap_compose ?
composed_height : cfmt.g_height();
+
+ ctx = fwht_alloc(cfmt.g_pixelformat(), visible_width,
visible_height,
+ cfmt.g_width(), cfmt.g_height(),
cfmt.g_field(), cfmt.g_colorspace(),
cfmt.g_xfer_func(),
cfmt.g_ycbcr_enc(),
cfmt.g_quantization());
+ }
fflush(fout);
}
#endif
@@ -1560,7 +1633,11 @@ static void streaming_set_out(cv4l_fd &fd)
cfmt.s_quantization(read_u32(fin));
cfmt.s_xfer_func(read_u32(fin));
cfmt.s_flags(read_u32(fin));
- ctx = fwht_alloc(cfmt.g_pixelformat(), cfmt.g_width(),
cfmt.g_height(),
+ unsigned visible_width = support_out_crop ? cropped_width :
cfmt.g_width();
+ unsigned visible_height = support_out_crop ? cropped_height :
cfmt.g_height();
+
+ ctx = fwht_alloc(cfmt.g_pixelformat(), visible_width,
visible_height,
+ cfmt.g_width(), cfmt.g_height(),
cfmt.g_field(), cfmt.g_colorspace(),
cfmt.g_xfer_func(),
cfmt.g_ycbcr_enc(), cfmt.g_quantization());
@@ -2029,6 +2106,43 @@ done:
fclose(file[OUT]);
}
+static int is_support_compose_on_cap(cv4l_fd &fd) {
+ v4l2_selection sel;
+
+ memset(&sel, 0, sizeof(sel));
+ sel.type = vidcap_buftype;
+ sel.target = V4L2_SEL_TGT_COMPOSE;
+
+ if (fd.g_selection(sel) == 0) {
+ support_cap_compose = true;
+ composed_width = sel.r.width;
+ composed_height = sel.r.height;
+ return 0;
+ }
+
+ support_cap_compose = false;
+ return 0;
+}
+
+
+static int is_support_crop_on_out(cv4l_fd &fd) {
+ v4l2_selection sel;
+
+ memset(&sel, 0, sizeof(sel));
+ sel.type = vidout_buftype;
+ sel.target = V4L2_SEL_TGT_CROP;
+
+ if (fd.g_selection(sel) == 0) {
+ support_out_crop = true;
+ cropped_width = sel.r.width;
+ cropped_height = sel.r.height;
+ return 0;
+ }
+
+ support_out_crop = false;
+ return 0;
+}
+
void streaming_set(cv4l_fd &fd, cv4l_fd &out_fd)
{
cv4l_disable_trace dt(fd);
@@ -2036,6 +2150,9 @@ void streaming_set(cv4l_fd &fd, cv4l_fd &out_fd)
int do_cap = options[OptStreamMmap] + options[OptStreamUser] +
options[OptStreamDmaBuf];
int do_out = options[OptStreamOutMmap] + options[OptStreamOutUser] +
options[OptStreamOutDmaBuf];
+ is_support_crop_on_out(fd);
+ is_support_compose_on_cap(fd);
+
if (out_fd.g_fd() < 0) {
out_capabilities = capabilities;
out_priv_magic = priv_magic;
--
2.17.1
