X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fav1.h;h=9354889afeb3d3723e6b7b19e2dc9cb3bab8b340;hb=e26fb6a714f6d86aca05361a0bab7eb84ef642f4;hp=9f2a71f35356c021e884632f6cd0494dd9f88670;hpb=29929fc8e2449d2db8bd144b2badc8d1e6347412;p=ffmpeg

diff --git a/libavformat/av1.h b/libavformat/av1.h
index 9f2a71f3535..9354889afeb 100644
--- a/libavformat/av1.h
+++ b/libavformat/av1.h
@@ -25,6 +25,22 @@
 
 #include "avio.h"
 
+typedef struct AV1SequenceParameters {
+    uint8_t profile;
+    uint8_t level;
+    uint8_t tier;
+    uint8_t bitdepth;
+    uint8_t monochrome;
+    uint8_t chroma_subsampling_x;
+    uint8_t chroma_subsampling_y;
+    uint8_t chroma_sample_position;
+    uint8_t color_description_present_flag;
+    uint8_t color_primaries;
+    uint8_t transfer_characteristics;
+    uint8_t matrix_coefficients;
+    uint8_t color_range;
+} AV1SequenceParameters;
+
 /**
  * Filter out AV1 OBUs not meant to be present in ISOBMFF sample data and write
  * the resulting bitstream to the provided AVIOContext.
@@ -55,11 +71,23 @@ int ff_av1_filter_obus(AVIOContext *pb, const uint8_t *buf, int size);
  */
 int ff_av1_filter_obus_buf(const uint8_t *buf, uint8_t **out, int *size);
 
+/**
+ * Parses a Sequence Header from the the provided buffer.
+ *
+ * @param seq pointer to the AV1SequenceParameters where the parsed values will
+ *            be written
+ * @param buf input data buffer
+ * @param size size in bytes of the input data buffer
+ *
+ * @return >= 0 in case of success, a negative AVERROR code in case of failure
+ */
+int ff_av1_parse_seq_header(AV1SequenceParameters *seq, const uint8_t *buf, int size);
+
 /**
  * Writes AV1 extradata (Sequence Header and Metadata OBUs) to the provided
  * AVIOContext.
  *
- * @param pb pointer to the AVIOContext where the hvcC shall be written
+ * @param pb pointer to the AVIOContext where the av1C box shall be written
  * @param buf input data buffer
  * @param size size in bytes of the input data buffer
  *