static void update_error_limit(WavpackFrameContext *ctx)
{
int i, br[2], sl[2];
for (i = 0; i <= ctx->stereo_in; i++) {
ctx->ch[i].bitrate_acc += ctx->ch[i].bitrate_delta;
br[i] = ctx->ch[i].bitrate_acc >> 16;
sl[i] = LEVEL_DECAY(ctx->ch[i].slow_level);
}
if (ctx->stereo_in && ctx->hybrid_bitrate) {
int balance = (sl[1] - sl[0] + br[1] + 1) >> 1;
if (balance > br[0]) {
br[1] = br[0] << 1;
br[0] = 0;
} else if (-balance > br[0]) {
br[0] <<= 1;
br[1] = 0;
} else {
br[1] = br[0] + balance;
br[0] = br[0] - balance;
}
}
static int update_error_limit(WavpackFrameContext *ctx)
{
int i, br[2], sl[2];
for (i = 0; i <= ctx->stereo_in; i++) {
if (ctx->ch[i].bitrate_acc > UINT_MAX - ctx->ch[i].bitrate_delta)
return AVERROR_INVALIDDATA;
ctx->ch[i].bitrate_acc += ctx->ch[i].bitrate_delta;
br[i] = ctx->ch[i].bitrate_acc >> 16;
sl[i] = LEVEL_DECAY(ctx->ch[i].slow_level);
}
if (ctx->stereo_in && ctx->hybrid_bitrate) {
int balance = (sl[1] - sl[0] + br[1] + 1) >> 1;
if (balance > br[0]) {
br[1] = br[0] * 2;
br[0] = 0;
} else if (-balance > br[0]) {
br[0] *= 2;
br[1] = 0;
} else {
br[1] = br[0] + balance;
br[0] = br[0] - balance;
}
}
