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avdevice/decklink_dec: do not copy video data 

Create a buffer from the data instead and use the buffer destructor to free the
DeckLink frame. This avoids a memcpy of the frame data.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2018-04-22 22:29:09 +02:00
parent 7033654f7f
commit 75d1529c6e
1 changed files with 12 additions and 0 deletions
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12
libavdevice/decklink_dec.cpp
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@ -98,6 +98,14 @@ static VANCLineNumber vanc_line_numbers[] = {
{bmdModeUnknown, 0, -1, -1, -1} {bmdModeUnknown, 0, -1, -1, -1}
}; };
extern "C" {
static void decklink_object_free(void *opaque, uint8_t *data)
{
IUnknown *obj = (class IUnknown *)opaque;
obj->Release();
}
}
static int get_vanc_line_idx(BMDDisplayMode mode) static int get_vanc_line_idx(BMDDisplayMode mode)
{ {
unsigned int i; unsigned int i;
@ -797,6 +805,10 @@ HRESULT decklink_input_callback::VideoInputFrameArrived(
} }
} }
pkt.buf = av_buffer_create(pkt.data, pkt.size, decklink_object_free, videoFrame, 0);
if (pkt.buf)
videoFrame->AddRef();
if (avpacket_queue_put(&ctx->queue, &pkt) < 0) { if (avpacket_queue_put(&ctx->queue, &pkt) < 0) {
++ctx->dropped; ++ctx->dropped;
} }