int64_t level;
int64_t entropy;
int64_t realtime;
+ int64_t frames_before;
+ int64_t frames_after;
int64_t allow_sw;
}
}
+ if (vtctx->frames_before) {
+ status = VTSessionSetProperty(vtctx->session,
+ kVTCompressionPropertyKey_MoreFramesBeforeStart,
+ kCFBooleanTrue);
+
+ if (status == kVTPropertyNotSupportedErr) {
+ av_log(avctx, AV_LOG_WARNING, "frames_before property is not supported on this device. Ignoring.\n");
+ } else if (status) {
+ av_log(avctx, AV_LOG_ERROR, "Error setting frames_before property: %d\n", status);
+ }
+ }
+
+ if (vtctx->frames_after) {
+ status = VTSessionSetProperty(vtctx->session,
+ kVTCompressionPropertyKey_MoreFramesAfterEnd,
+ kCFBooleanTrue);
+
+ if (status == kVTPropertyNotSupportedErr) {
+ av_log(avctx, AV_LOG_WARNING, "frames_after property is not supported on this device. Ignoring.\n");
+ } else if (status) {
+ av_log(avctx, AV_LOG_ERROR, "Error setting frames_after property: %d\n", status);
+ }
+ }
+
if (!vtctx->has_b_frames) {
status = VTSessionSetProperty(vtctx->session,
kVTCompressionPropertyKey_AllowFrameReordering,
{ "realtime", "Hint that encoding should happen in real-time if not faster (e.g. capturing from camera).",
OFFSET(realtime), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+ { "frames_before", "Other frames will come before the frames in this session. This helps smooth concatenation issues.",
+ OFFSET(frames_before), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+ { "frames_after", "Other frames will come after the frames in this session. This helps smooth concatenation issues.",
+ OFFSET(frames_after), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
+
{ NULL },
};