nsv: simplify probe function

[ffmpeg] / libavformat / isom.c

diff --git a/libavformat/isom.c b/libavformat/isom.c
index e0f07e29fcad6938d23b648da953dc20a76fcc01..45ccdd2864d4aaf27e8721361efcd922899cb355 100644 (file)
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -81,6 +81,7 @@ const AVCodecTag codec_movvideo_tags[] = {
     { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
     { CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
     { CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
+    { CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
 
     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
     { CODEC_ID_R10K,   MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */
@@ -482,3 +483,24 @@ void ff_mov_read_chan(AVFormatContext *s, int64_t size, AVCodecContext *codec)
     avio_skip(pb, 8);
 }
 
+void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
+{
+    const MovChannelLayout *layouts;
+    uint32_t layout_tag = 0;
+
+    for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
+        if (channel_layout == layouts->channel_layout) {
+            layout_tag = layouts->layout_tag;
+            break;
+        }
+
+    if (layout_tag) {
+        avio_wb32(pb, layout_tag); //< mChannelLayoutTag
+        avio_wb32(pb, 0);          //< mChannelBitmap
+    } else {
+        avio_wb32(pb, 0x10000);    //< kCAFChannelLayoutTag_UseChannelBitmap
+        avio_wb32(pb, channel_layout);
+    }
+    avio_wb32(pb, 0);              //< mNumberChannelDescriptions
+}
+