[FFmpeg-cvslog] r21031 - trunk/libavcodec/ra144.c
vitor
subversion
Tue Jan 5 17:25:41 CET 2010
Author: vitor
Date: Tue Jan 5 17:25:41 2010
New Revision: 21031
Log:
Use correct context for av_log(), should prevent a crash for malformed files.
Patch by Francesco Lavra (francescolavra at interfree dot it).
Modified:
trunk/libavcodec/ra144.c
Modified: trunk/libavcodec/ra144.c
==============================================================================
--- trunk/libavcodec/ra144.c Tue Jan 5 11:18:01 2010 (r21030)
+++ trunk/libavcodec/ra144.c Tue Jan 5 17:25:41 2010 (r21031)
@@ -33,6 +33,8 @@
typedef struct {
+ AVCodecContext *avctx;
+
unsigned int old_energy; ///< previous frame energy
unsigned int lpc_tables[2][10];
@@ -55,6 +57,8 @@ static av_cold int ra144_decode_init(AVC
{
RA144Context *ractx = avctx->priv_data;
+ ractx->avctx = avctx;
+
ractx->lpc_coef[0] = ractx->lpc_tables[0];
ractx->lpc_coef[1] = ractx->lpc_tables[1];
@@ -226,7 +230,7 @@ static void int_to_int16(int16_t *out, c
* @return 1 if one of the reflection coefficients is greater than
* 4095, 0 if not.
*/
-static int eval_refl(int *refl, const int16_t *coefs, RA144Context *ractx)
+static int eval_refl(int *refl, const int16_t *coefs, AVCodecContext *avctx)
{
int b, i, j;
int buffer1[10];
@@ -240,7 +244,7 @@ static int eval_refl(int *refl, const in
refl[9] = bp2[9];
if ((unsigned) bp2[9] + 0x1000 > 0x1fff) {
- av_log(ractx, AV_LOG_ERROR, "Overflow. Broken sample?\n");
+ av_log(avctx, AV_LOG_ERROR, "Overflow. Broken sample?\n");
return 1;
}
@@ -275,7 +279,7 @@ static int interp(RA144Context *ractx, i
for (i=0; i<30; i++)
out[i] = (a * ractx->lpc_coef[0][i] + b * ractx->lpc_coef[1][i])>> 2;
- if (eval_refl(work, out, ractx)) {
+ if (eval_refl(work, out, ractx->avctx)) {
// The interpolated coefficients are unstable, copy either new or old
// coefficients.
int_to_int16(out, ractx->lpc_coef[copyold]);
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