Hi all!
It's my first time here. I want to create a patch to add Z16 pixel format.
I have did some changes, and I want to know if I'll need change any other
file.
I attach my current patch.
Thanks in advance.
From 7f3e028198c510fd8cf14c087d4a223bd7e94422 Mon Sep 17 00:00:00 2001
From: prubio <pru...@elitegrupo.com>
Date: Fri, 16 Nov 2018 11:55:00 +0100
Subject: [PATCH] Add 16-bit Depth z16 pixel format
---
libavdevice/v4l2-common.c | 3 +++
libavutil/pixdesc.c | 9 +++++++++
libavutil/pixfmt.h | 2 ++
libswscale/input.c | 3 +++
libswscale/utils.c | 2 ++
5 files changed, 19 insertions(+)
diff --git a/libavdevice/v4l2-common.c b/libavdevice/v4l2-common.c
index 2d6bfac..337bb08 100644
--- a/libavdevice/v4l2-common.c
+++ b/libavdevice/v4l2-common.c
@@ -46,6 +46,9 @@ const struct fmt_map ff_fmt_conversion_table[] = {
#ifdef V4L2_PIX_FMT_Y16
{ AV_PIX_FMT_GRAY16LE,AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_Y16 },
#endif
+#ifdef V4L2_PIX_FMT_Z16
+ { AV_PIX_FMT_Z16, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_Z16 },
+#endif
{ AV_PIX_FMT_NV12, AV_CODEC_ID_RAWVIDEO, V4L2_PIX_FMT_NV12 },
{ AV_PIX_FMT_NONE, AV_CODEC_ID_MJPEG, V4L2_PIX_FMT_MJPEG },
{ AV_PIX_FMT_NONE, AV_CODEC_ID_MJPEG, V4L2_PIX_FMT_JPEG },
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index 1c36577..9ede616 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -2268,6 +2268,15 @@ static const AVPixFmtDescriptor av_pix_fmt_descriptors[AV_PIX_FMT_NB] = {
.flags = AV_PIX_FMT_FLAG_FLOAT,
.alias = "yf32le",
},
+ [AV_PIX_FMT_Z16] = {
+ .name = "z16",
+ .nb_components = 1,
+ .log2_chroma_w = 0,
+ .log2_chroma_h = 0,
+ .comp = {
+ { 0, 2, 0, 0, 16, 1, 15, 1 }, /* Y */
+ },
+ },
};
#if FF_API_PLUS1_MINUS1
FF_ENABLE_DEPRECATION_WARNINGS
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 6815f8d..d8a7119 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -300,6 +300,8 @@ enum AVPixelFormat {
AV_PIX_FMT_P016LE, ///< like NV12, with 16bpp per component, little-endian
AV_PIX_FMT_P016BE, ///< like NV12, with 16bpp per component, big-endian
+ AV_PIX_FMT_Z16, ///< 16 bit Depth (little-endian)
+
/**
* Hardware surfaces for Direct3D11.
*
diff --git a/libswscale/input.c b/libswscale/input.c
index 4099c19..7178307 100644
--- a/libswscale/input.c
+++ b/libswscale/input.c
@@ -1448,6 +1448,9 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
c->alpToYV12 = bswap16Y_c;
break;
#endif
+ case AV_PIX_FMT_Z16:
+ c->lumToYV12 = bswap16Y_c;
+ break;
case AV_PIX_FMT_YA16LE:
c->lumToYV12 = read_ya16le_gray_c;
break;
diff --git a/libswscale/utils.c b/libswscale/utils.c
index d5913ed..2e18e2d 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -260,6 +260,7 @@ static const FormatEntry format_entries[AV_PIX_FMT_NB] = {
[AV_PIX_FMT_P016BE] = { 1, 1 },
[AV_PIX_FMT_GRAYF32LE] = { 1, 1 },
[AV_PIX_FMT_GRAYF32BE] = { 1, 1 },
+ [AV_PIX_FMT_Z16] = { 1, 1 },
};
int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
@@ -1034,6 +1035,7 @@ static int handle_jpeg(enum AVPixelFormat *format)
case AV_PIX_FMT_GRAY16BE:
case AV_PIX_FMT_YA16BE:
case AV_PIX_FMT_YA16LE:
+ case AV_PIX_FMT_Z16:
return 1;
default:
return 0;
--
2.7.4
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