cbs: Add a table of all supported codec IDs

Use it as the set of codec IDs supported by the trace_headers BSF.

configure

@@ -2924,7 +2924,7 @@ h264_redundant_pps_bsf_select="cbs_h264"
 hevc_metadata_bsf_select="cbs_h265"
 mjpeg2jpeg_bsf_select="jpegtables"
 mpeg2_metadata_bsf_select="cbs_mpeg2"
-trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
+trace_headers_bsf_select="cbs"
 
 # external libraries
 aac_at_decoder_deps="audiotoolbox"

libavcodec/cbs.c

@@ -40,6 +40,19 @@ static const CodedBitstreamType *cbs_type_table[] = {
 #endif
 };
 
+const enum AVCodecID ff_cbs_all_codec_ids[] = {
+#if CONFIG_CBS_H264
+    AV_CODEC_ID_H264,
+#endif
+#if CONFIG_CBS_H265
+    AV_CODEC_ID_H265,
+#endif
+#if CONFIG_CBS_MPEG2
+    AV_CODEC_ID_MPEG2VIDEO,
+#endif
+    AV_CODEC_ID_NONE
+};
+
 int ff_cbs_init(CodedBitstreamContext **ctx_ptr,
                 enum AVCodecID codec_id, void *log_ctx)
 {

libavcodec/cbs.h

@@ -201,6 +201,14 @@ typedef struct CodedBitstreamContext {
 } CodedBitstreamContext;
 
 
+/**
+ * Table of all supported codec IDs.
+ *
+ * Terminated by AV_CODEC_ID_NONE.
+ */
+extern const enum AVCodecID ff_cbs_all_codec_ids[];
+
+
 /**
  * Create and initialise a new context for the given codec.
  */

libavcodec/trace_headers_bsf.c

@@ -107,18 +107,11 @@ static int trace_headers(AVBSFContext *bsf, AVPacket *pkt)
     return 0;
 }
 
-static const enum AVCodecID trace_headers_codec_ids[] = {
-    AV_CODEC_ID_H264,
-    AV_CODEC_ID_HEVC,
-    AV_CODEC_ID_MPEG2VIDEO,
-    AV_CODEC_ID_NONE,
-};
-
 const AVBitStreamFilter ff_trace_headers_bsf = {
     .name           = "trace_headers",
     .priv_data_size = sizeof(TraceHeadersContext),
     .init           = &trace_headers_init,
     .close          = &trace_headers_close,
     .filter         = &trace_headers,
-    .codec_ids      = trace_headers_codec_ids,
+    .codec_ids      = ff_cbs_all_codec_ids,
 };