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demux_lavf: fix crash with empty files

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This used to work; I'm not sure when or why it regressed. When setting
AVProbeData.filename to NULL, libavformat will crash in rtp_probe() by
unconditionally accessing the string.

We used to set the filename to NULL to prevent probing by file extension
when we don't deem it as necessary. Using an empty string also works for
this purpose.
This commit is contained in:
wm4 2014-01-31 01:36:09 +01:00
parent 8ff1a339e9
commit 00af143176
1 changed files with 1 additions and 1 deletions
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2
demux/demux_lavf.c
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@ -251,7 +251,7 @@ static int lavf_check_file(demuxer_t *demuxer, enum demux_check check)
AVProbeData avpd = {
// Disable file-extension matching with normal checks
.filename = check <= DEMUX_CHECK_REQUEST ? priv->filename : NULL,
.filename = check <= DEMUX_CHECK_REQUEST ? priv->filename : "",
.buf_size = 0,
.buf = av_mallocz(PROBE_BUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE),
};