fix overreading from input buffer and report lost bytes in lpcm decoder

1 files changed, 5 insertions, 1 deletions

diff --git a/src/libxineadec/xine_lpcm_decoder.c b/src/libxineadec/xine_lpcm_decoder.c
index 9587da6e8..eeed7ba35 100644
--- a/src/libxineadec/xine_lpcm_decoder.c
+++ b/src/libxineadec/xine_lpcm_decoder.c
@@ -187,7 +187,7 @@ static void lpcm_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
     uint8_t *d = (uint8_t *)audio_buffer->mem;
     int n = buf->size;
 
-    while (n >= 0) {
+    while (n >= 3) {
       if ( stream_be ) {
 	  if ( stream_be == this->cpu_be ) {
 	      *d++ = s[0];
@@ -211,6 +211,10 @@ static void lpcm_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
       s += 3;
       n -= 3;
     }
+
+    if ( (d - (uint8_t*)audio_buffer->mem)/2*3 < buf->size )
+	xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "lpcm_decoder: lost %i bytes\n", (int)(buf->size - (d - (uint8_t*)audio_buffer->mem))/2*3);
+
   } else {
     memcpy (audio_buffer->mem, sample_buffer, buf->size);
   }