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video-converter: Set up gamma tables only once

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When the video converter is using multiple threads, the gamma tables
were created multiple times, leaking the tables set up for the previous
thread.

Only calculate the tables once.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/1140>
This commit is contained in:
Jan Alexander Steffens (heftig) 2021-05-06 19:01:41 +02:00 committed by GStreamer Marge Bot
parent b835356d6c
commit ef324fa068
1 changed files with 6 additions and 2 deletions
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8
gst-libs/gst/video/video-converter.c
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@ -1506,7 +1506,9 @@ setup_gamma_decode (GstVideoConverter * convert)
func = convert->in_info.colorimetry.transfer;
convert->gamma_dec.width = convert->current_width;
if (convert->current_bits == 8) {
if (convert->gamma_dec.gamma_table) {
GST_DEBUG ("gamma decode already set up");
} else if (convert->current_bits == 8) {
GST_DEBUG ("gamma decode 8->16: %d", func);
convert->gamma_dec.gamma_func = gamma_convert_u8_u16;
t = convert->gamma_dec.gamma_table = g_malloc (sizeof (guint16) * 256);
@ -1538,7 +1540,9 @@ setup_gamma_encode (GstVideoConverter * convert, gint target_bits)
func = convert->out_info.colorimetry.transfer;
convert->gamma_enc.width = convert->current_width;
if (target_bits == 8) {
if (convert->gamma_enc.gamma_table) {
GST_DEBUG ("gamma encode already set up");
} else if (target_bits == 8) {
guint8 *t;
GST_DEBUG ("gamma encode 16->8: %d", func);