jordan/camera-streamer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Re-use h264 keyframes

Browse Source
This commit is contained in:
Kamil Trzcinski
2022-04-08 11:09:47 +02:00
parent 1352df220b
commit 3a8574de66
3 changed files with 21 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
http/http_h264.c
View File

@ -47,16 +47,28 @@ typedef struct {
bool requested_key_frame;
} http_video_status_t;
bool h264_is_key_frame(buffer_t *buf)
{
unsigned char *data = buf->start;
device_t *camera = buf->buf_list->device;
if (buf->v4l2_buffer.flags & V4L2_BUF_FLAG_KEYFRAME) {
E_LOG_DEBUG(buf, "Got key frame (from V4L2)!");
return true;
} else if (buf->used >= 5 && (data[4] & 0x1F) == 0x07) {
E_LOG_DEBUG(buf, "Got key frame (from buffer)!");
return true;
}
return false;
}
int http_video_buf_part(buffer_lock_t *buf_lock, buffer_t *buf, int frame, http_video_status_t *status)
{
unsigned char *data = buf->start;
if (buf->v4l2_buffer.flags & V4L2_BUF_FLAG_KEYFRAME) {
status->had_key_frame = true;
E_LOG_DEBUG(buf, "Got key frame (from V4L2)!");
} else if (buf->used >= 5 && (data[4] & 0x1F) == 0x07) {
status->had_key_frame = true;
E_LOG_DEBUG(buf, "Got key frame (from buffer)!");
if (!status->had_key_frame) {
status->had_key_frame = h264_is_key_frame(buf);
}
if (!status->had_key_frame) {