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v4l2test: Fix the freezing frame from the first running on dmabuf mode

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Signed-off-by: Kevin.xie <kevin.xie@starfivetech.com>
This commit is contained in:
Kevin.xie
2022-08-02 10:04:50 +08:00
parent 9234eab162
commit dc859873a6
1 changed files with 5 additions and 3 deletions
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package/starfive/v4l2_test/v4l2_test.c
+5 -3
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@@ -540,7 +540,7 @@ static void page_flip_handler(int fd, unsigned int frame,
/* If we have a next buffer, then let's return the current one,
* and grab the next one.
*/
if (g_drm_buf_next_idx > 0) {
if (g_drm_buf_next_idx >= 0) {
stf_v4l2_queue_buffer(&gp_cfg_param->v4l2_param, g_drm_buf_curr_idx);
g_drm_buf_curr_idx = g_drm_buf_next_idx;
g_drm_buf_next_idx = -1;
@@ -673,15 +673,17 @@ static void mainloop()
drmModePageFlip(gp_cfg_param->drm_param.fd,
dev->crtc_id, dev->bufs[buf.index].fb_id,
DRM_MODE_PAGE_FLIP_EVENT, dev);
g_drm_buf_curr_idx = buf.index;
first_frame = 0;
} else {
g_drm_buf_next_idx = buf.index;
}
g_drm_buf_next_idx = buf.index;
frameRead(); // TODO: add support for save file later
calc_frame_fps();
}
}
if (fds[1].revents & POLLIN) {
if (g_drm_buf_next_idx > 0) {
if (g_drm_buf_next_idx >= 0) {
drmHandleEvent(gp_cfg_param->drm_param.fd, &ev);
}
}