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Merge commit '2ef2f60b4f0308d1c871091c9c1a9641d14ec585' into release/2.4 

* commit '2ef2f60b4f0308d1c871091c9c1a9641d14ec585':
  rmenc: limit packet size

Conflicts:
	libavformat/rmenc.c

See: 73ca672fb6
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-09 01:35:28 +01:00
parent 73ca672fb6 2ef2f60b4f
commit 20655dd2ec
1 changed files with 6 additions and 3 deletions
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9
libavformat/rmenc.c
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@ -44,6 +44,10 @@ typedef struct {
/* in ms */
#define BUFFER_DURATION 0
/* the header needs at most 7 + 4 + 12 B */
#define MAX_HEADER_SIZE (7 + 4 + 12)
/* UINT16_MAX is the maximal chunk size */
#define MAX_PACKET_SIZE (UINT16_MAX - MAX_HEADER_SIZE)
static void put_str(AVIOContext *s, const char *tag)
@ -394,9 +398,8 @@ static int rm_write_video(AVFormatContext *s, const uint8_t *buf, int size, int
/* Well, I spent some time finding the meaning of these bits. I am
not sure I understood everything, but it works !! */
#if 1
/* 0xFFFF is the maximal chunk size; header needs at most 7 + 4 + 12 B */
if (size > 0xFFFF - 7 - 4 - 12) {
av_log(s, AV_LOG_ERROR, "large packet size %d not supported\n", size);
if (size > MAX_PACKET_SIZE) {
av_log(s, AV_LOG_ERROR, "Muxing packets larger than 64 kB (%d) is not supported\n", size);
return AVERROR_PATCHWELCOME;
}
write_packet_header(s, stream, size + 7 + (size >= 0x4000)*4, key_frame);