#include "avcodec.h"
+/** Last possible matrix channel for each codec */
+#define MAX_MATRIX_CHANNEL_MLP 5
+#define MAX_MATRIX_CHANNEL_TRUEHD 7
/** Maximum number of channels that can be decoded. */
#define MAX_CHANNELS 16
uint8_t checksum;
uint8_t lossless_check;
int start_count = get_bits_count(gbp);
+ const int max_matrix_channel = m->avctx->codec_id == CODEC_ID_MLP
+ ? MAX_MATRIX_CHANNEL_MLP
+ : MAX_MATRIX_CHANNEL_TRUEHD;
sync_word = get_bits(gbp, 13);
s->noise_type = get_bits1(gbp);
s->max_channel = get_bits(gbp, 4);
s->max_matrix_channel = get_bits(gbp, 4);
+ if (s->max_matrix_channel > max_matrix_channel) {
+ av_log(m->avctx, AV_LOG_ERROR,
+ "Max matrix channel cannot be greater than %d.\n",
+ max_matrix_channel);
+ return -1;
+ }
+
+ if (s->max_channel != s->max_matrix_channel) {
+ av_log(m->avctx, AV_LOG_ERROR,
+ "Max channel must be equal max matrix channel.\n");
+ return -1;
+ }
+
if (s->min_channel > s->max_channel) {
av_log(m->avctx, AV_LOG_ERROR,
"Substream min channel cannot be greater than max channel.\n");