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x265enc: Specify max CU size depending on input resolution

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x265 does not allow user to configure a picture size smaller than
at least one CU size, and maxCUSize must be 16, 32, or 64.
Therefore, the CU size must be set according to the input resolution,
and the input resolution can not be less than 16.
This commit is contained in:
Yeongjin Jeong 2019-07-01 18:14:55 +09:00
parent 416afd5fa9
commit 8f2c53f6f5
2 changed files with 20 additions and 8 deletions
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20
ext/x265/gstx265enc.c
View file

@ -163,7 +163,7 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS ("video/x-raw, "
"format = (string) { " FORMATS " }, "
"framerate = (fraction) [0, MAX], "
"width = (int) [ 4, MAX ], " "height = (int) [ 4, MAX ]")
"width = (int) [ 16, MAX ], " "height = (int) [ 16, MAX ]")
);
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
@ -171,7 +171,7 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h265, "
"framerate = (fraction) [0/1, MAX], "
"width = (int) [ 4, MAX ], " "height = (int) [ 4, MAX ], "
"width = (int) [ 16, MAX ], " "height = (int) [ 16, MAX ], "
"stream-format = (string) byte-stream, "
"alignment = (string) au, " "profile = (string) { main }")
);
@ -288,8 +288,8 @@ gst_x265_enc_get_supported_input_caps (void)
caps = gst_caps_new_simple ("video/x-raw",
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1,
"width", GST_TYPE_INT_RANGE, 4, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 4, G_MAXINT, NULL);
"width", GST_TYPE_INT_RANGE, 16, G_MAXINT,
"height", GST_TYPE_INT_RANGE, 16, G_MAXINT, NULL);
gst_x265_enc_add_x265_chroma_format (gst_caps_get_structure (caps, 0),
x265_chroma_format);
@ -670,6 +670,18 @@ gst_x265_enc_init_encoder (GstX265Enc * encoder)
}
encoder->x265param.sourceWidth = info->width;
encoder->x265param.sourceHeight = info->height;
/* x265 does not allow user to configure a picture size smaller than
* at least one CU size, and maxCUSize must be 16, 32, or 64.
* Therefore, we should be set the CU size according to the input resolution.
*/
if (encoder->x265param.sourceWidth < 64
|| encoder->x265param.sourceHeight < 64)
encoder->x265param.maxCUSize = 32;
if (encoder->x265param.sourceWidth < 32
|| encoder->x265param.sourceHeight < 32)
encoder->x265param.maxCUSize = 16;
if (info->par_d > 0) {
encoder->x265param.vui.aspectRatioIdc = X265_EXTENDED_SAR;
encoder->x265param.vui.sarWidth = info->par_n;

8
tests/check/elements/x265enc.c
View file

@ -26,16 +26,16 @@ static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h265, "
"width = (int) [1, MAX], "
"height = (int) [1, MAX], " "framerate = (fraction) [0, MAX]"));
"width = (int) [16, MAX], "
"height = (int) [16, MAX], " "framerate = (fraction) [0, MAX]"));
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, "
"format = (string) I420, "
"width = (int) [1, MAX], "
"height = (int) [1, MAX], " "framerate = (fraction) [0, MAX]"));
"width = (int) [16, MAX], "
"height = (int) [16, MAX], " "framerate = (fraction) [0, MAX]"));
static GstPad *sinkpad, *srcpad;