---
libavcodec/h2645_parse.c | 74 ++++++++++++++++++++++++++++++++++++++--
1 file changed, 71 insertions(+), 3 deletions(-)
diff --git a/libavcodec/h2645_parse.c b/libavcodec/h2645_parse.c
index a36ef4f5a0..35f9d035a9 100644
--- a/libavcodec/h2645_parse.c
+++ b/libavcodec/h2645_parse.c
@@ -1,5 +1,5 @@
/*
- * H.264/HEVC common parsing code
+ * H.264/HEVC/VVC common parsing code
*
* This file is part of FFmpeg.
*
@@ -27,6 +27,7 @@
#include "libavutil/mem.h"
#include "bytestream.h"
+#include "vvc.h"
#include "hevc.h"
#include "h264.h"
#include "h2645_parse.h"
@@ -146,6 +147,47 @@ nsc:
return si;
}
+static const char *const vvc_nal_type_name[32] = {
+ "TRAIL_NUT", // VVC_TRAIL_NUT
+ "STSA_NUT", // VVC_STSA_NUT
+ "RADL_NUT", // VVC_RADL_NUT
+ "RASL_NUT", // VVC_RASL_NUT
+ "RSV_VCL_4", // VVC_RSV_VCL_4
+ "RSV_VCL_5", // VVC_RSV_VCL_5
+ "RSV_VCL_6", // VVC_RSV_VCL_6
+ "IDR_W_RADL", // VVC_IDR_W_RADL
+ "IDR_N_LP", // VVC_IDR_N_LP
+ "CRA_NUT", // VVC_CRA_NUT
+ "GDR_NUT", // VVC_GDR_NUT
+ "RSV_IRAP_11", // VVC_RSV_IRAP_11
+ "OPI_NUT", // VVC_OPI_NUT
+ "DCI_NUT", // VVC_DCI_NUT
+ "VPS_NUT", // VVC_VPS_NUT
+ "SPS_NUT", // VVC_SPS_NUT
+ "PPS_NUT", // VVC_PPS_NUT
+ "PREFIX_APS_NUT",// VVC_PREFIX_APS_NUT
+ "SUFFIX_APS_NUT",// VVC_SUFFIX_APS_NUT
+ "PH_NUT", // VVC_PH_NUT
+ "AUD_NUT", // VVC_AUD_NUT
+ "EOS_NUT", // VVC_EOS_NUT
+ "EOB_NUT", // VVC_EOB_NUT
+ "PREFIX_SEI_NUT",// VVC_PREFIX_SEI_NUT
+ "SUFFIX_SEI_NUT",// VVC_SUFFIX_SEI_NUT
+ "FD_NUT", // VVC_FD_NUT
+ "RSV_NVCL_26", // VVC_RSV_NVCL_26
+ "RSV_NVCL_27", // VVC_RSV_NVCL_27
+ "UNSPEC_28", // VVC_UNSPEC_28
+ "UNSPEC_29", // VVC_UNSPEC_29
+ "UNSPEC_30", // VVC_UNSPEC_30
+ "UNSPEC_31", // VVC_UNSPEC_31
+};
+
+static const char *vvc_nal_unit_name(int nal_type)
+{
+ av_assert0(nal_type >= 0 && nal_type < 32);
+ return vvc_nal_type_name[nal_type];
+}
+
static const char *const hevc_nal_type_name[64] = {
"TRAIL_N", // HEVC_NAL_TRAIL_N
"TRAIL_R", // HEVC_NAL_TRAIL_R
@@ -289,6 +331,31 @@ static int get_bit_length(H2645NAL *nal, int
skip_trailing_zeros)
* @return AVERROR_INVALIDDATA if the packet is not a valid NAL unit,
* 0 otherwise
*/
+static int vvc_parse_nal_header(H2645NAL *nal, void *logctx)
+{
+ GetBitContext *gb = &nal->gb;
+
+ if (get_bits1(gb) != 0) //forbidden_zero_bit
+ return AVERROR_INVALIDDATA;
+
+ skip_bits1(gb); //nuh_reserved_zero_bit
+
+ nal->nuh_layer_id = get_bits(gb, 6);
+ nal->type = get_bits(gb, 5);
+ nal->temporal_id = get_bits(gb, 3) - 1;
+ if (nal->temporal_id < 0)
+ return AVERROR_INVALIDDATA;
+
+ if ((nal->type >= VVC_IDR_W_RADL && nal->type <= VVC_RSV_IRAP_11) &&
nal->temporal_id)
+ return AVERROR_INVALIDDATA;
+
+ av_log(logctx, AV_LOG_DEBUG,
+ "nal_unit_type: %d(%s), nuh_layer_id: %d, temporal_id: %d\n",
+ nal->type, vvc_nal_unit_name(nal->type), nal->nuh_layer_id,
nal->temporal_id);
+
+ return 0;
+}
+
static int hevc_parse_nal_header(H2645NAL *nal, void *logctx)
{
GetBitContext *gb = &nal->gb;
@@ -503,8 +570,9 @@ int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t
*buf, int length,
/* Reset type in case it contains a stale value from a previously
parsed NAL */
nal->type = 0;
-
- if (codec_id == AV_CODEC_ID_HEVC)
+ if (codec_id == AV_CODEC_ID_VVC)
+ ret = vvc_parse_nal_header(nal, logctx);
+ else if (codec_id == AV_CODEC_ID_HEVC)
ret = hevc_parse_nal_header(nal, logctx);
else
ret = h264_parse_nal_header(nal, logctx);
--
2.25.1
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