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From: toqsxw@gmail.com
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To: ffmpeg-devel@ffmpeg.org
Date: Wed, 2 Apr 2025 01:16:08 +0800
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Subject: [FFmpeg-devel] [PATCH v1 11/19] avcodec/cbs_sei_syntax_template:
add sei message sei_display_orientation
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From: Wu Jianhua <toqsxw@outlook.com>
Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
---
libavcodec/cbs_h2645.c | 6 ++++++
libavcodec/cbs_sei.h | 7 +++++++
libavcodec/cbs_sei_syntax_template.c | 18 ++++++++++++++++++
3 files changed, 31 insertions(+)
diff --git a/libavcodec/cbs_h2645.c b/libavcodec/cbs_h2645.c
index 768181874c..c868770209 100644
--- a/libavcodec/cbs_h2645.c
+++ b/libavcodec/cbs_h2645.c
@@ -2193,6 +2193,12 @@ static const SEIMessageTypeDescriptor cbs_sei_common_types[] = {
sizeof(SEIRawFilmGrainCharacteristics),
SEI_MESSAGE_RW(sei, film_grain_characteristics),
},
+ {
+ SEI_TYPE_DISPLAY_ORIENTATION,
+ 1, 0,
+ sizeof(SEIRawDisplayOrientation),
+ SEI_MESSAGE_RW(sei, display_orientation)
+ },
SEI_MESSAGE_TYPE_END,
};
diff --git a/libavcodec/cbs_sei.h b/libavcodec/cbs_sei.h
index a0fb004ecd..7be12e33e0 100644
--- a/libavcodec/cbs_sei.h
+++ b/libavcodec/cbs_sei.h
@@ -118,6 +118,13 @@ typedef struct SEIRawFilmGrainCharacteristics {
uint8_t fg_characteristics_persistence_flag;
} SEIRawFilmGrainCharacteristics;
+typedef struct SEIRawDisplayOrientation {
+ uint8_t display_orientation_cancel_flag;
+ uint8_t display_orientation_persistence_flag;
+ uint8_t display_orientation_transform_type;
+ uint8_t display_orientation_reserved_zero_3bits;
+} SEIRawDisplayOrientation;
+
typedef struct SEIRawMessage {
uint32_t payload_type;
uint32_t payload_size;
diff --git a/libavcodec/cbs_sei_syntax_template.c b/libavcodec/cbs_sei_syntax_template.c
index b105299cd9..fb19f6ee42 100644
--- a/libavcodec/cbs_sei_syntax_template.c
+++ b/libavcodec/cbs_sei_syntax_template.c
@@ -277,6 +277,24 @@ SEI_FUNC(film_grain_characteristics,
return 0;
}
+SEI_FUNC(display_orientation, (CodedBitstreamContext *ctx, RWContext *rw,
+ SEIRawDisplayOrientation *current,
+ SEIMessageState *state))
+{
+ int err;
+
+ HEADER("Display Orientation");
+
+ flag(display_orientation_cancel_flag);
+ if (!current->display_orientation_cancel_flag) {
+ flag(display_orientation_persistence_flag);
+ u(3, display_orientation_transform_type, 0, 7);
+ ub(3, display_orientation_reserved_zero_3bits);
+ }
+
+ return 0;
+}
+
static int FUNC(message)(CodedBitstreamContext *ctx, RWContext *rw,
SEIRawMessage *current)
{
--
2.44.0.windows.1
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