On Thu, 15 Jun 2017, John Stebbins wrote:

If AVCodecParameters.codec_tag is 'hvc1' use it instead of 'hev1' for
h.265 streams. QuickTime (and other Apple software) requires 'hvc1'.
---
libavformat/movenc.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 0c1508f..2ff4270 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -4435,6 +4435,7 @@ const AVCodecTag codec_mp4_tags[] = {
    { AV_CODEC_ID_MPEG4       , MKTAG('m', 'p', '4', 'v') },
    { AV_CODEC_ID_H264        , MKTAG('a', 'v', 'c', '1') },
    { AV_CODEC_ID_HEVC        , MKTAG('h', 'e', 'v', '1') },
+    { AV_CODEC_ID_HEVC        , MKTAG('h', 'v', 'c', '1') },
    { AV_CODEC_ID_AAC         , MKTAG('m', 'p', '4', 'a') },
    { AV_CODEC_ID_MP4ALS      , MKTAG('m', 'p', '4', 'a') },
    { AV_CODEC_ID_MPEG2VIDEO  , MKTAG('m', 'p', '4', 'v') },
--
2.9.4

This (and the rest of your patches except 2/4 as you mentioned yourself) look good and are a sensible addition.

However what I'm left wondering is as a next step, after making this possible at all, is what should be the default? If the default isn't compatible with apple tools, I'm pretty sure it'll be a very frequently asked question at least. I guess it's doable via the -tag flag on the command line or something like that, but it feels a little clunky.

But don't let that hold up your patches, since they generally are a step in the right direction.

// Martin
_______________________________________________
libav-devel mailing list
libav-devel@libav.org
https://lists.libav.org/mailman/listinfo/libav-devel

Reply via email to