avformat: Avoid allocation for AVFormatInternal

Do this by allocating AVFormatContext together with the data that is
currently in AVFormatInternal; or rather: Put AVFormatContext at the
beginning of a new structure called FFFormatContext (which encompasses
more than just the internal fields and is a proper context in its own
right, hence the name) and remove AVFormatInternal altogether.

The biggest simplifications occured in avformat_alloc_context(), where
one can now simply call avformat_free_context() in case of errors.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index fe89d4fb9f..9662ef1e61 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -3070,7 +3070,7 @@ static int mpegts_read_header(AVFormatContext *s)
     int64_t pos, probesize = s->probesize;
     int64_t seekback = FFMAX(s->probesize, (int64_t)ts->resync_size + PROBE_PACKET_MAX_BUF);
 
-    s->internal->prefer_codec_framerate = 1;
+    ffformatcontext(s)->prefer_codec_framerate = 1;
 
     if (ffio_ensure_seekback(pb, seekback) < 0)
         av_log(s, AV_LOG_WARNING, "Failed to allocate buffers for seekback\n");