avformat/rawenc: add H266/VVC muxer

Signed-off-by: James Almer <jamrial@gmail.com>

Changelog

@@ -22,7 +22,7 @@ version <next>:
 - bwdif_cuda filter
 - Microsoft RLE video encoder
 - Raw AC-4 muxer and demuxer
-- Raw VVC bitstream parser and demuxer
+- Raw VVC bitstream parser, muxer and demuxer
 - Bitstream filter for editing metadata in VVC streams
 - Bitstream filter for converting VVC from MP4 to Annex B
 

libavformat/Makefile

@@ -604,6 +604,7 @@ OBJS-$(CONFIG_VPK_DEMUXER)               += vpk.o
 OBJS-$(CONFIG_VPLAYER_DEMUXER)           += vplayerdec.o subtitles.o
 OBJS-$(CONFIG_VQF_DEMUXER)               += vqf.o
 OBJS-$(CONFIG_VVC_DEMUXER)               += vvcdec.o rawdec.o
+OBJS-$(CONFIG_VVC_MUXER)                 += rawenc.o
 OBJS-$(CONFIG_W64_DEMUXER)               += wavdec.o w64.o pcm.o
 OBJS-$(CONFIG_W64_MUXER)                 += wavenc.o w64.o
 OBJS-$(CONFIG_WADY_DEMUXER)              += wady.o pcm.o

libavformat/allformats.c

@@ -487,6 +487,7 @@ extern const AVInputFormat  ff_vpk_demuxer;
 extern const AVInputFormat  ff_vplayer_demuxer;
 extern const AVInputFormat  ff_vqf_demuxer;
 extern const AVInputFormat  ff_vvc_demuxer;
+extern const FFOutputFormat ff_vvc_muxer;
 extern const AVInputFormat  ff_w64_demuxer;
 extern const FFOutputFormat ff_w64_muxer;
 extern const AVInputFormat  ff_wady_demuxer;

libavformat/rawenc.c

@@ -378,6 +378,29 @@ const FFOutputFormat ff_h264_muxer = {
 };
 #endif
 
+#if CONFIG_VVC_MUXER
+static int vvc_check_bitstream(AVFormatContext *s, AVStream *st,
+                                const AVPacket *pkt)
+{
+    if (pkt->size >= 5 && AV_RB32(pkt->data) != 0x0000001 &&
+                          AV_RB24(pkt->data) != 0x000001)
+        return ff_stream_add_bitstream_filter(st, "vvc_mp4toannexb", NULL);
+    return 1;
+}
+
+const FFOutputFormat ff_vvc_muxer = {
+    .p.name            = "vvc",
+    .p.long_name       = NULL_IF_CONFIG_SMALL("raw H.266/VVC video"),
+    .p.extensions      = "vvc,h266,266",
+    .p.audio_codec     = AV_CODEC_ID_NONE,
+    .p.video_codec     = AV_CODEC_ID_VVC,
+    .init              = force_one_stream,
+    .write_packet      = ff_raw_write_packet,
+    .check_bitstream   = vvc_check_bitstream,
+    .p.flags           = AVFMT_NOTIMESTAMPS,
+};
+#endif
+
 #if CONFIG_HEVC_MUXER
 static int hevc_check_bitstream(AVFormatContext *s, AVStream *st,
                                 const AVPacket *pkt)