@@ -106,7 +106,7 @@ typedef struct {

     float level;

     float *samples_im;

     float *samples_re;

-    float *table;

+    const float *table;

     int   phase;

     int   phase_shift;

     int   duration;

@@ -176,7 +176,7 @@ typedef struct {

     QDM2FFT fft;

     /// I/O data

-    uint8_t *compressed_data;

+    const uint8_t *compressed_data;

     int compressed_size;

     float output_buffer[1024];

@@ -404,7 +404,7 @@ static int qdm2_get_se_vlc (VLC *vlc, GetBitContext *gb, int depth)

  *

  * @return          0 if checksum is OK

  */

-static uint16_t qdm2_packet_checksum (uint8_t *data, int length, int value) {

+static uint16_t qdm2_packet_checksum (const uint8_t *data, int length, int value) {

     int i;

     for (i=0; i < length; i++)

@@ -1598,7 +1598,7 @@ static void qdm2_fft_tone_synthesizer (QDM2Context *q, int sub_packet)

                     tone.level = (q->fft_coefs[j].exp < 0) ? 0.0 : fft_tone_level_table[q->superblocktype_2_3 ? 0 : 1][q->fft_coefs[j].exp & 63];

                     tone.samples_im = &q->fft.samples_im[ch][offset];

                     tone.samples_re = &q->fft.samples_re[ch][offset];

-                    tone.table = (float*)fft_tone_sample_table[i][q->fft_coefs[j].offset - (offset << four_i)];

+                    tone.table = fft_tone_sample_table[i][q->fft_coefs[j].offset - (offset << four_i)];

                     tone.phase = 64 * q->fft_coefs[j].phase - (offset << 8) - 128;

                     tone.phase_shift = (2 * q->fft_coefs[j].offset + 1) << (7 - four_i);

                     tone.duration = i;

@@ -1943,7 +1943,7 @@ static int qdm2_decode_close(AVCodecContext *avctx)

 }

-static void qdm2_decode (QDM2Context *q, uint8_t *in, int16_t *out)

+static void qdm2_decode (QDM2Context *q, const uint8_t *in, int16_t *out)

 {

     int ch, i;

     const int frame_size = (q->frame_size * q->channels);

@@ -2005,7 +2005,7 @@ static void qdm2_decode (QDM2Context *q, uint8_t *in, int16_t *out)

 static int qdm2_decode_frame(AVCodecContext *avctx,

             void *data, int *data_size,

-            uint8_t *buf, int buf_size)

+            const uint8_t *buf, int buf_size)

 {

     QDM2Context *s = avctx->priv_data;