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pjproject/pjmedia/src/pjmedia-videodev/colorbar_dev.c

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/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <pjmedia-videodev/videodev_imp.h>
#include <pjmedia/clock.h>
#include <pj/assert.h>
#include <pj/log.h>
#include <pj/os.h>
#include <pj/rand.h>
#if defined(PJMEDIA_HAS_VIDEO) && PJMEDIA_HAS_VIDEO != 0 && \
defined(PJMEDIA_VIDEO_DEV_HAS_CBAR_SRC) && \
PJMEDIA_VIDEO_DEV_HAS_CBAR_SRC != 0
#define THIS_FILE "colorbar_dev.c"
#define DEFAULT_CLOCK_RATE 90000
#define DEFAULT_WIDTH 352 //640
#define DEFAULT_HEIGHT 288 //480
#define DEFAULT_FPS 25
/* cbar_ device info */
struct cbar_dev_info
{
pjmedia_vid_dev_info info;
};
/* cbar_ factory */
struct cbar_factory
{
pjmedia_vid_dev_factory base;
pj_pool_t *pool;
pj_pool_factory *pf;
unsigned dev_count;
struct cbar_dev_info *dev_info;
};
struct cbar_fmt_info {
pjmedia_format_id fmt_id; /* Format ID */
/* Info for packed formats. */
unsigned c_offset[3]; /* Color component offset,
in bytes */
unsigned c_stride[3]; /* Color component stride,
or distance between two
consecutive same color
components, in bytes */
};
/* Colorbar video source supports */
static struct cbar_fmt_info cbar_fmts[] =
{
/* Packed formats */
{ PJMEDIA_FORMAT_YUY2, {0, 1, 3}, {2, 4, 4} },
{ PJMEDIA_FORMAT_UYVY, {1, 0, 2}, {2, 4, 4} },
{ PJMEDIA_FORMAT_YVYU, {0, 3, 1}, {2, 4, 4} },
{ PJMEDIA_FORMAT_RGBA, {0, 1, 2}, {4, 4, 4} },
{ PJMEDIA_FORMAT_RGB24, {0, 1, 2}, {3, 3, 3} },
{ PJMEDIA_FORMAT_BGRA, {2, 1, 0}, {4, 4, 4} },
/* Planar formats */
{ PJMEDIA_FORMAT_YV12 },
{ PJMEDIA_FORMAT_I420 },
{ PJMEDIA_FORMAT_I422 },
{ PJMEDIA_FORMAT_I420JPEG },
{ PJMEDIA_FORMAT_I422JPEG },
};
/* Video stream. */
struct cbar_stream
{
pjmedia_vid_dev_stream base; /**< Base stream */
pjmedia_vid_dev_param param; /**< Settings */
pj_pool_t *pool; /**< Memory pool. */
pjmedia_vid_dev_cb vid_cb; /**< Stream callback. */
void *user_data; /**< Application data. */
const struct cbar_fmt_info *cbfi;
const pjmedia_video_format_info *vfi;
pjmedia_video_apply_fmt_param vafp;
pj_uint8_t *first_line[PJMEDIA_MAX_VIDEO_PLANES];
pj_timestamp ts;
unsigned ts_inc;
/* For active capturer only */
pjmedia_clock *clock;
pj_uint8_t *clock_buf;
};
/* Prototypes */
static pj_status_t cbar_factory_init(pjmedia_vid_dev_factory *f);
static pj_status_t cbar_factory_destroy(pjmedia_vid_dev_factory *f);
static pj_status_t cbar_factory_refresh(pjmedia_vid_dev_factory *f);
static unsigned cbar_factory_get_dev_count(pjmedia_vid_dev_factory *f);
static pj_status_t cbar_factory_get_dev_info(pjmedia_vid_dev_factory *f,
unsigned index,
pjmedia_vid_dev_info *info);
static pj_status_t cbar_factory_default_param(pj_pool_t *pool,
pjmedia_vid_dev_factory *f,
unsigned index,
pjmedia_vid_dev_param *param);
static pj_status_t cbar_factory_create_stream(
pjmedia_vid_dev_factory *f,
pjmedia_vid_dev_param *param,
const pjmedia_vid_dev_cb *cb,
void *user_data,
pjmedia_vid_dev_stream **p_vid_strm);
static pj_status_t cbar_stream_get_param(pjmedia_vid_dev_stream *strm,
pjmedia_vid_dev_param *param);
static pj_status_t cbar_stream_get_cap(pjmedia_vid_dev_stream *strm,
pjmedia_vid_dev_cap cap,
void *value);
static pj_status_t cbar_stream_set_cap(pjmedia_vid_dev_stream *strm,
pjmedia_vid_dev_cap cap,
const void *value);
static pj_status_t cbar_stream_get_frame(pjmedia_vid_dev_stream *strm,
pjmedia_frame *frame);
static pj_status_t cbar_stream_start(pjmedia_vid_dev_stream *strm);
static pj_status_t cbar_stream_stop(pjmedia_vid_dev_stream *strm);
static pj_status_t cbar_stream_destroy(pjmedia_vid_dev_stream *strm);
/* Operations */
static pjmedia_vid_dev_factory_op factory_op =
{
&cbar_factory_init,
&cbar_factory_destroy,
&cbar_factory_get_dev_count,
&cbar_factory_get_dev_info,
&cbar_factory_default_param,
&cbar_factory_create_stream,
&cbar_factory_refresh
};
static pjmedia_vid_dev_stream_op stream_op =
{
&cbar_stream_get_param,
&cbar_stream_get_cap,
&cbar_stream_set_cap,
&cbar_stream_start,
&cbar_stream_get_frame,
NULL,
&cbar_stream_stop,
&cbar_stream_destroy
};
/****************************************************************************
* Factory operations
*/
/*
* Init cbar_ video driver.
*/
pjmedia_vid_dev_factory* pjmedia_cbar_factory(pj_pool_factory *pf)
{
struct cbar_factory *f;
pj_pool_t *pool;
pool = pj_pool_create(pf, "cbar video", 4000, 4000, NULL);
f = PJ_POOL_ZALLOC_T(pool, struct cbar_factory);
f->pf = pf;
f->pool = pool;
f->base.op = &factory_op;
return &f->base;
}
/* API: init factory */
static pj_status_t cbar_factory_init(pjmedia_vid_dev_factory *f)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
struct cbar_dev_info *ddi;
unsigned i;
cf->dev_count = 2;
cf->dev_info = (struct cbar_dev_info*)
pj_pool_calloc(cf->pool, cf->dev_count,
sizeof(struct cbar_dev_info));
/* Passive capturer */
ddi = &cf->dev_info[0];
pj_bzero(ddi, sizeof(*ddi));
pj_ansi_strncpy(ddi->info.name, "Colorbar generator",
sizeof(ddi->info.name));
ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0';
pj_ansi_strncpy(ddi->info.driver, "Colorbar", sizeof(ddi->info.driver));
ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0';
ddi->info.dir = PJMEDIA_DIR_CAPTURE;
ddi->info.has_callback = PJ_FALSE;
ddi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT;
ddi->info.fmt_cnt = PJ_ARRAY_SIZE(cbar_fmts);
for (i = 0; i < ddi->info.fmt_cnt; i++) {
pjmedia_format *fmt = &ddi->info.fmt[i];
pjmedia_format_init_video(fmt, cbar_fmts[i].fmt_id,
DEFAULT_WIDTH, DEFAULT_HEIGHT,
DEFAULT_FPS, 1);
}
/* Active capturer */
ddi = &cf->dev_info[1];
pj_bzero(ddi, sizeof(*ddi));
pj_ansi_strncpy(ddi->info.name, "Colorbar-active",
sizeof(ddi->info.name));
ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0';
pj_ansi_strncpy(ddi->info.driver, "Colorbar", sizeof(ddi->info.driver));
ddi->info.driver[sizeof(ddi->info.driver)-1] = '\0';
ddi->info.dir = PJMEDIA_DIR_CAPTURE;
ddi->info.has_callback = PJ_TRUE;
ddi->info.caps = PJMEDIA_VID_DEV_CAP_FORMAT;
ddi->info.fmt_cnt = PJ_ARRAY_SIZE(cbar_fmts);
for (i = 0; i < ddi->info.fmt_cnt; i++) {
pjmedia_format *fmt = &ddi->info.fmt[i];
pjmedia_format_init_video(fmt, cbar_fmts[i].fmt_id,
DEFAULT_WIDTH, DEFAULT_HEIGHT,
DEFAULT_FPS, 1);
}
PJ_LOG(4, (THIS_FILE, "Colorbar video src initialized with %d device(s):",
cf->dev_count));
for (i = 0; i < cf->dev_count; i++) {
PJ_LOG(4, (THIS_FILE, "%2d: %s", i, cf->dev_info[i].info.name));
}
return PJ_SUCCESS;
}
/* API: destroy factory */
static pj_status_t cbar_factory_destroy(pjmedia_vid_dev_factory *f)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
pj_pool_safe_release(&cf->pool);
return PJ_SUCCESS;
}
/* API: refresh the list of devices */
static pj_status_t cbar_factory_refresh(pjmedia_vid_dev_factory *f)
{
PJ_UNUSED_ARG(f);
return PJ_SUCCESS;
}
/* API: get number of devices */
static unsigned cbar_factory_get_dev_count(pjmedia_vid_dev_factory *f)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
return cf->dev_count;
}
/* API: get device info */
static pj_status_t cbar_factory_get_dev_info(pjmedia_vid_dev_factory *f,
unsigned index,
pjmedia_vid_dev_info *info)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
PJ_ASSERT_RETURN(index < cf->dev_count, PJMEDIA_EVID_INVDEV);
pj_memcpy(info, &cf->dev_info[index].info, sizeof(*info));
return PJ_SUCCESS;
}
/* API: create default device parameter */
static pj_status_t cbar_factory_default_param(pj_pool_t *pool,
pjmedia_vid_dev_factory *f,
unsigned index,
pjmedia_vid_dev_param *param)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
struct cbar_dev_info *di = &cf->dev_info[index];
PJ_ASSERT_RETURN(index < cf->dev_count, PJMEDIA_EVID_INVDEV);
PJ_UNUSED_ARG(pool);
pj_bzero(param, sizeof(*param));
param->dir = PJMEDIA_DIR_CAPTURE;
param->cap_id = index;
param->rend_id = PJMEDIA_VID_INVALID_DEV;
param->flags = PJMEDIA_VID_DEV_CAP_FORMAT;
param->clock_rate = DEFAULT_CLOCK_RATE;
pj_memcpy(&param->fmt, &di->info.fmt[0], sizeof(param->fmt));
return PJ_SUCCESS;
}
static const struct cbar_fmt_info* get_cbar_fmt_info(pjmedia_format_id id)
{
unsigned i;
for (i = 0; i < PJ_ARRAY_SIZE(cbar_fmts); i++) {
if (cbar_fmts[i].fmt_id == id)
return &cbar_fmts[i];
}
return NULL;
}
static void fill_first_line(pj_uint8_t *first_lines[],
const struct cbar_fmt_info *cbfi,
const pjmedia_video_format_info *vfi,
const pjmedia_video_apply_fmt_param *vafp)
{
typedef pj_uint8_t color_comp_t[3];
color_comp_t rgb_colors[] =
{
{255,255,255}, {255,255,0}, {0,255,255}, {0,255,0},
{255,0,255}, {255,0,0}, {0,0,255}, {0,0,0}
};
color_comp_t yuv_colors[] =
{
//{235,128,128}, {162,44,142}, {131,156,44}, {112,72,58},
//{84,184,198}, {65,100,212}, {35,212,114}, {16,128,128}
{235,128,128}, {210,16,146}, {170,166,16}, {145,54,34},
{106,202,222}, {81,90,240}, {41,240,110}, {16,128,128}
};
unsigned i, j, k;
if (vfi->plane_cnt == 1) {
/* Packed */
for (i = 0; i < 8; ++i) {
/* iterate bars */
for (j = 0; j < 3; ++j) {
/* iterate color components */
pj_uint8_t *p = NULL, c;
unsigned bar_width, inc_p;
if (vfi->color_model == PJMEDIA_COLOR_MODEL_RGB)
c = rgb_colors[i][j];
else
c = yuv_colors[i][j];
bar_width = vafp->size.w/8;
bar_width /= (cbfi->c_stride[j] * 8 / vfi->bpp);
inc_p = cbfi->c_stride[j];
p = first_lines[0] + bar_width*i*inc_p + cbfi->c_offset[j];
/* draw this color */
for (k = 0; k < bar_width; ++k) {
*p = c;
p += inc_p;
}
}
}
} else if (vfi->plane_cnt == 3) {
for (i = 0; i < 8; ++i) {
/* iterate bars */
for (j = 0; j < 3; ++j) {
/* iterate planes/color components */
pj_uint8_t *p = NULL, c;
unsigned bar_width;
if (vfi->color_model == PJMEDIA_COLOR_MODEL_RGB)
c = rgb_colors[i][j];
else {
if (vfi->id == PJMEDIA_FORMAT_YV12 && j > 0)
c = yuv_colors[i][3-j];
else
c = yuv_colors[i][j];
}
bar_width = vafp->strides[j]/8;
p = first_lines[j] + bar_width*i;
/* draw this plane/color */
for (k = 0; k < bar_width; ++k)
*p++ = c;
}
}
}
}
static void clock_cb(const pj_timestamp *ts, void *user_data)
{
struct cbar_stream *stream = (struct cbar_stream*)user_data;
pjmedia_frame f;
pj_status_t status;
PJ_UNUSED_ARG(ts);
pj_bzero(&f, sizeof(f));
f.buf = stream->clock_buf;
f.size = stream->vafp.framebytes;
status = cbar_stream_get_frame(&stream->base, &f);
if (status == PJ_SUCCESS) {
(*stream->vid_cb.capture_cb)(&stream->base, stream->user_data, &f);
}
}
/* API: create stream */
static pj_status_t cbar_factory_create_stream(
pjmedia_vid_dev_factory *f,
pjmedia_vid_dev_param *param,
const pjmedia_vid_dev_cb *cb,
void *user_data,
pjmedia_vid_dev_stream **p_vid_strm)
{
struct cbar_factory *cf = (struct cbar_factory*)f;
pj_pool_t *pool;
struct cbar_stream *strm;
const pjmedia_video_format_detail *vfd;
const pjmedia_video_format_info *vfi;
pjmedia_video_apply_fmt_param vafp;
const struct cbar_fmt_info *cbfi;
unsigned i;
PJ_ASSERT_RETURN(f && param && p_vid_strm, PJ_EINVAL);
PJ_ASSERT_RETURN(param->fmt.type == PJMEDIA_TYPE_VIDEO &&
param->fmt.detail_type == PJMEDIA_FORMAT_DETAIL_VIDEO &&
param->dir == PJMEDIA_DIR_CAPTURE,
PJ_EINVAL);
pj_bzero(&vafp, sizeof(vafp));
vfd = pjmedia_format_get_video_format_detail(&param->fmt, PJ_TRUE);
vfi = pjmedia_get_video_format_info(NULL, param->fmt.id);
cbfi = get_cbar_fmt_info(param->fmt.id);
if (!vfi || !cbfi)
return PJMEDIA_EVID_BADFORMAT;
vafp.size = param->fmt.det.vid.size;
if (vfi->apply_fmt(vfi, &vafp) != PJ_SUCCESS)
return PJMEDIA_EVID_BADFORMAT;
/* Create and Initialize stream descriptor */
pool = pj_pool_create(cf->pf, "cbar-dev", 512, 512, NULL);
PJ_ASSERT_RETURN(pool != NULL, PJ_ENOMEM);
strm = PJ_POOL_ZALLOC_T(pool, struct cbar_stream);
pj_memcpy(&strm->param, param, sizeof(*param));
strm->pool = pool;
pj_memcpy(&strm->vid_cb, cb, sizeof(*cb));
strm->user_data = user_data;
strm->vfi = vfi;
strm->cbfi = cbfi;
pj_memcpy(&strm->vafp, &vafp, sizeof(vafp));
strm->ts_inc = PJMEDIA_SPF2(param->clock_rate, &vfd->fps, 1);
for (i = 0; i < vfi->plane_cnt; ++i) {
strm->first_line[i] = pj_pool_alloc(pool, vafp.strides[i]);
pj_memset(strm->first_line[i], 255, vafp.strides[i]);
}
fill_first_line(strm->first_line, strm->cbfi, vfi, &strm->vafp);
/* Apply the remaining settings */
/* if (param->flags & PJMEDIA_VID_DEV_CAP_INPUT_SCALE) {
cbar_stream_set_cap(&strm->base,
PJMEDIA_VID_DEV_CAP_INPUT_SCALE,
&param->fmt);
}
*/
/* Active role? */
if (param->cap_id == 1 && cb && cb->capture_cb) {
pjmedia_clock_param clock_param;
pj_status_t status;
/* Allocate buffer */
strm->clock_buf = pj_pool_alloc(pool, strm->vafp.framebytes);
/* Create clock */
pj_bzero(&clock_param, sizeof(clock_param));
clock_param.usec_interval = PJMEDIA_PTIME(&vfd->fps);
clock_param.clock_rate = param->clock_rate;
status = pjmedia_clock_create2(pool, &clock_param,
PJMEDIA_CLOCK_NO_HIGHEST_PRIO,
&clock_cb,
strm, &strm->clock);
if (status != PJ_SUCCESS) {
pj_pool_release(pool);
return status;
}
}
/* Done */
strm->base.op = &stream_op;
*p_vid_strm = &strm->base;
return PJ_SUCCESS;
}
/* API: Get stream info. */
static pj_status_t cbar_stream_get_param(pjmedia_vid_dev_stream *s,
pjmedia_vid_dev_param *pi)
{
struct cbar_stream *strm = (struct cbar_stream*)s;
PJ_ASSERT_RETURN(strm && pi, PJ_EINVAL);
pj_memcpy(pi, &strm->param, sizeof(*pi));
/* if (cbar_stream_get_cap(s, PJMEDIA_VID_DEV_CAP_INPUT_SCALE,
&pi->fmt.info_size) == PJ_SUCCESS)
{
pi->flags |= PJMEDIA_VID_DEV_CAP_INPUT_SCALE;
}
*/
return PJ_SUCCESS;
}
/* API: get capability */
static pj_status_t cbar_stream_get_cap(pjmedia_vid_dev_stream *s,
pjmedia_vid_dev_cap cap,
void *pval)
{
struct cbar_stream *strm = (struct cbar_stream*)s;
PJ_UNUSED_ARG(strm);
PJ_ASSERT_RETURN(s && pval, PJ_EINVAL);
if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE)
{
return PJMEDIA_EVID_INVCAP;
// return PJ_SUCCESS;
} else {
return PJMEDIA_EVID_INVCAP;
}
}
/* API: set capability */
static pj_status_t cbar_stream_set_cap(pjmedia_vid_dev_stream *s,
pjmedia_vid_dev_cap cap,
const void *pval)
{
struct cbar_stream *strm = (struct cbar_stream*)s;
PJ_UNUSED_ARG(strm);
PJ_ASSERT_RETURN(s && pval, PJ_EINVAL);
if (cap==PJMEDIA_VID_DEV_CAP_INPUT_SCALE)
{
return PJ_SUCCESS;
}
return PJMEDIA_EVID_INVCAP;
}
static pj_status_t spectrum_run(struct cbar_stream *d, pj_uint8_t *p,
pj_size_t size)
{
unsigned i;
pj_uint8_t *ptr = p;
pj_time_val tv;
PJ_UNUSED_ARG(size);
/* Subsequent lines */
for (i=0; i<d->vfi->plane_cnt; ++i) {
pj_uint8_t *plane_end;
plane_end = ptr + d->vafp.plane_bytes[i];
while (ptr < plane_end) {
pj_memcpy(ptr, d->first_line[i], d->vafp.strides[i]);
ptr += d->vafp.strides[i];
}
}
/* blinking dot */
pj_gettimeofday(&tv);
if (tv.msec < 660) {
enum { DOT_SIZE = 8 };
pj_uint8_t dot_clr_rgb[3] = {255, 255, 255};
pj_uint8_t dot_clr_yuv[3] = {235, 128, 128};
if (d->vfi->plane_cnt == 1) {
for (i = 0; i < 3; ++i) {
unsigned j, k, inc_ptr;
pj_size_t dot_size = DOT_SIZE;
dot_size /= (d->cbfi->c_stride[i] * 8 / d->vfi->bpp);
inc_ptr = d->cbfi->c_stride[i];
for (j = 0; j < dot_size; ++j) {
ptr = p + d->vafp.strides[0]*(dot_size+j+1) -
2*dot_size*inc_ptr + d->cbfi->c_offset[i];
for (k = 0; k < dot_size; ++k) {
if (d->vfi->color_model == PJMEDIA_COLOR_MODEL_RGB)
*ptr = dot_clr_rgb[i];
else
*ptr = dot_clr_yuv[i];
ptr += inc_ptr;
}
}
}
} else {
pj_size_t offset_p = 0;
for (i = 0; i < 3; ++i) {
pj_uint8_t c;
unsigned j;
pj_size_t dot_size = DOT_SIZE;
if (d->vfi->color_model == PJMEDIA_COLOR_MODEL_RGB)
c = dot_clr_rgb[i];
else
c = dot_clr_yuv[i];
dot_size /= (d->vafp.size.w / d->vafp.strides[i]);
ptr = p + offset_p + d->vafp.strides[i]*(dot_size+1) -
2*dot_size;
for (j = 0; j < dot_size; ++j) {
pj_memset(ptr, c, dot_size);
ptr += d->vafp.strides[i];
}
offset_p += d->vafp.plane_bytes[i];
}
}
}
return PJ_SUCCESS;
}
/* API: Get frame from stream */
static pj_status_t cbar_stream_get_frame(pjmedia_vid_dev_stream *strm,
pjmedia_frame *frame)
{
struct cbar_stream *stream = (struct cbar_stream*)strm;
frame->type = PJMEDIA_FRAME_TYPE_VIDEO;
frame->bit_info = 0;
frame->timestamp = stream->ts;
stream->ts.u64 += stream->ts_inc;
return spectrum_run(stream, frame->buf, frame->size);
}
/* API: Start stream. */
static pj_status_t cbar_stream_start(pjmedia_vid_dev_stream *strm)
{
struct cbar_stream *stream = (struct cbar_stream*)strm;
PJ_LOG(4, (THIS_FILE, "Starting cbar video stream"));
if (stream->clock)
return pjmedia_clock_start(stream->clock);
return PJ_SUCCESS;
}
/* API: Stop stream. */
static pj_status_t cbar_stream_stop(pjmedia_vid_dev_stream *strm)
{
struct cbar_stream *stream = (struct cbar_stream*)strm;
PJ_LOG(4, (THIS_FILE, "Stopping cbar video stream"));
if (stream->clock)
return pjmedia_clock_stop(stream->clock);
return PJ_SUCCESS;
}
/* API: Destroy stream. */
static pj_status_t cbar_stream_destroy(pjmedia_vid_dev_stream *strm)
{
struct cbar_stream *stream = (struct cbar_stream*)strm;
PJ_ASSERT_RETURN(stream != NULL, PJ_EINVAL);
cbar_stream_stop(strm);
if (stream->clock)
pjmedia_clock_destroy(stream->clock);
stream->clock = NULL;
pj_pool_release(stream->pool);
return PJ_SUCCESS;
}
#endif /* PJMEDIA_VIDEO_DEV_HAS_CBAR_SRC */
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