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handle invalid xing tags better. 

git-svn-id: https://svn.musicpd.org/mpd/trunk@4866 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes 2006-10-03 00:58:20 +00:00
parent 4d6db2eb37
commit 648f48ce3b
1 changed files with 26 additions and 18 deletions
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40
src/inputPlugins/mp3_plugin.c
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@ -648,22 +648,9 @@ static int decodeFirstFrame(mp3DecodeData * data, DecoderControl * dc,
ptr = data->stream.anc_ptr;
bitlen = data->stream.anc_bitlen;
if (parse_xing(&xing, &ptr, &bitlen)) {
data->foundXing = 1;
data->muteFrame = MUTEFRAME_SKIP;
if (parse_lame(&lame, &ptr, &bitlen)) {
data->dropSamplesAtStart = lame.encoderDelay + DECODERDELAY;
data->dropSamplesAtEnd = lame.encoderPadding;
}
if (xing.flags & XING_FRAMES) {
mad_timer_t duration = data->frame.header.duration;
mad_timer_multiply(&duration, xing.frames);
data->totalTime = ((float)mad_timer_count(duration, MAD_UNITS_MILLISECONDS)) / 1000;
data->maxFrames = xing.frames;
}
} else {
/*
* Attempt to calulcate the length of the song from filesize
*/
size_t offset = data->inStream->offset;
mad_timer_t duration = data->frame.header.duration;
float frameTime = ((float)mad_timer_count(duration, MAD_UNITS_MILLISECONDS)) / 1000;
@ -680,8 +667,29 @@ static int decodeFirstFrame(mp3DecodeData * data, DecoderControl * dc,
data->maxFrames = FRAMES_CUSHION;
data->totalTime = 0;
}
/*
* if an xing tag exists, use that!
*/
if (parse_xing(&xing, &ptr, &bitlen)) {
data->foundXing = 1;
data->muteFrame = MUTEFRAME_SKIP;
if (parse_lame(&lame, &ptr, &bitlen)) {
data->dropSamplesAtStart = lame.encoderDelay + DECODERDELAY;
data->dropSamplesAtEnd = lame.encoderPadding;
}
if ((xing.flags & XING_FRAMES) && xing.frames) {
mad_timer_t duration = data->frame.header.duration;
mad_timer_multiply(&duration, xing.frames);
data->totalTime = ((float)mad_timer_count(duration, MAD_UNITS_MILLISECONDS)) / 1000;
data->maxFrames = xing.frames;
}
}
if (!data->maxFrames) return -1;
data->frameOffset = xmalloc(sizeof(long) * data->maxFrames);
data->times = xmalloc(sizeof(mad_timer_t) * data->maxFrames);