@@ -94,7 +94,7 @@ static void parse_waveformatex(AVFormatContext *s, AVIOContext *pb, AVCodecParam
int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
AVCodecParameters *par, int size, int big_endian)
{
- int id, channels;
+ int id, channels = 0;
uint64_t bitrate = 0;
if (size < 14) {
@@ -118,15 +118,15 @@ int ff_get_wav_header(AVFormatContext *s, AVIOContext *pb,
bitrate = avio_rb32(pb) * 8LL;
par->block_align = avio_rb16(pb);
}
- if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
- par->bits_per_coded_sample = 8;
- } else {
+ if (size >= 16) { /* We're dealing with PCMWAVEFORMAT */
if (!big_endian) {
par->bits_per_coded_sample = avio_rl16(pb);
} else {
par->bits_per_coded_sample = avio_rb16(pb);
}
- }
+ } else if (channels && par->sample_rate) { /* We're dealing with WAVEFORMAT */
+ par->bits_per_coded_sample = bitrate / channels / par->sample_rate;
+ } /* Apparently size would be >= 32 if id == 0x0165; see below */
if (id == 0xFFFE) {
par->codec_tag = 0;
} else {
WAVEFORMAT can be used for 16-bit PCM as well. Signed-off-by: Tom Yan <tom.ty89@gmail.com> --- libavformat/riffdec.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)