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ffmpeg: fixed seek integer overflow 

The "current" variable is used for calculating the seek destination,
and was declared as "int".  With very long song files, the 32 bit
integer can overflow.  ffmpeg expects an int64_t, which is very
unlikely to overflow.  Switch to int64_t.
This commit is contained in:
Max Kellermann 2009-02-03 22:46:00 +01:00
parent f3b73b824f
commit 824d299eb1
2 changed files with 5 additions and 3 deletions
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1
NEWS
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@ -39,6 +39,7 @@ ver 0.14.2 (2009/??/??)
- ffmpeg: added support for the tags comment, genre, year
- ffmpeg: don't warn of empty packet output
- ffmpeg: check if the time stamp is valid
- ffmpeg: fixed seek integer overflow
- wavpack: pass NULL if the .wvc file fails to open
- mikmod: call MikMod_Exit() only in the finish() method
* audio outputs:

7
src/decoder/ffmpeg_plugin.c
View File

@ -264,7 +264,7 @@ ffmpeg_decode_internal(struct ffmpeg_context *ctx)
AVPacket packet;
struct audio_format audio_format;
enum decoder_command cmd;
int current, total_time;
int total_time;
total_time = 0;
@ -306,9 +306,10 @@ ffmpeg_decode_internal(struct ffmpeg_context *ctx)
av_free_packet(&packet);
if (cmd == DECODE_COMMAND_SEEK) {
current = decoder_seek_where(decoder) * AV_TIME_BASE;
int64_t where =
decoder_seek_where(decoder) * AV_TIME_BASE;
if (av_seek_frame(format_context, -1, current, 0) < 0)
if (av_seek_frame(format_context, -1, where, 0) < 0)
decoder_seek_error(decoder);
else
decoder_command_finished(decoder);