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libavdevice/decklink: configurablity to set max queue size

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Signed-off-by: Ravindra Patagar <rpatagar@akamai.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Ravindra
2017-08-10 11:59:30 +05:30
committed by Marton Balint
parent 6f03ffb47d
commit f3913dcc06
6 changed files with 17 additions and 3 deletions
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7
libavdevice/decklink_dec.cpp
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@@ -1,6 +1,7 @@
/*
* Blackmagic DeckLink input
* Copyright (c) 2013-2014 Luca Barbato, Deti Fliegl
* Copyright (c) 2017 Akamai Technologies, Inc.
*
* This file is part of FFmpeg.
*
@@ -187,10 +188,12 @@ static uint8_t* teletext_data_unit_from_vanc_data(uint8_t *src, uint8_t *tgt, in
static void avpacket_queue_init(AVFormatContext *avctx, AVPacketQueue *q)
{
struct decklink_cctx *ctx = (struct decklink_cctx *)avctx->priv_data;
memset(q, 0, sizeof(AVPacketQueue));
pthread_mutex_init(&q->mutex, NULL);
pthread_cond_init(&q->cond, NULL);
q->avctx = avctx;
q->max_q_size = ctx->queue_size;
}
static void avpacket_queue_flush(AVPacketQueue *q)
@@ -230,8 +233,8 @@ static int avpacket_queue_put(AVPacketQueue *q, AVPacket *pkt)
{
AVPacketList *pkt1;
// Drop Packet if queue size is > 1GB
if (avpacket_queue_size(q) > 1024 * 1024 * 1024 ) {
// Drop Packet if queue size is > maximum queue size
if (avpacket_queue_size(q) > q->max_q_size) {
av_log(q->avctx, AV_LOG_WARNING, "Decklink input buffer overrun!\n");
return -1;
}