From 07745485ef70bd38485c6a391ec2300687528a6d Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Wed, 14 Sep 2011 15:20:22 -0400 Subject: shorten: skip some fields in the WAV header embedded in the shorten header. fixes incorrect bitrate reporting and potential misreporting of the number of channels. --- libavcodec/shorten.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'libavcodec/shorten.c') diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index af12e08bfc..af798da1b3 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -231,10 +231,10 @@ static int decode_wave_header(AVCodecContext *avctx, uint8_t *header, int header return -1; } - avctx->channels = get_le16(&hb); + skip_bits(&hb, 16); // skip channels (already got from shorten header) avctx->sample_rate = get_le32(&hb); - avctx->bit_rate = get_le32(&hb) * 8; - avctx->block_align = get_le16(&hb); + skip_bits(&hb, 32); // skip bit rate (represents original uncompressed bit rate) + skip_bits(&hb, 16); // skip block align (not needed) avctx->bits_per_coded_sample = get_le16(&hb); if (avctx->bits_per_coded_sample != 16) { @@ -295,6 +295,7 @@ static int read_header(ShortenContext *s) av_log(s->avctx, AV_LOG_ERROR, "too many channels: %d\n", s->channels); return -1; } + s->avctx->channels = s->channels; /* get blocksize if version > 0 */ if (s->version > 0) { -- cgit v1.2.3