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Deobfuscade decodeTonalComponents calling logic.

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Originally committed as revision 8757 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Benjamin Larsson 2007-04-18 19:58:20 +00:00
parent 1e8391777d
commit b8c4a51598
1 changed files with 6 additions and 11 deletions
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17
libavcodec/atrac3.c
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@ -409,22 +409,19 @@ static int decodeSpectrum (GetBitContext *gb, float *pOut)
* Restore the quantized tonal components * Restore the quantized tonal components
* *
* @param gb the GetBit context * @param gb the GetBit context
* @param numComponents tonal components to report back
* @param pComponent tone component * @param pComponent tone component
* @param numBands amount of coded bands * @param numBands amount of coded bands
*/ */
static int decodeTonalComponents (GetBitContext *gb, int *numComponents, tonal_component *pComponent, int numBands) static int decodeTonalComponents (GetBitContext *gb, tonal_component *pComponent, int numBands)
{ {
int i,j,k,cnt; int i,j,k,cnt;
int component_count, components, coding_mode_selector, coding_mode, coded_values_per_component; int components, coding_mode_selector, coding_mode, coded_values_per_component;
int sfIndx, coded_values, max_coded_values, quant_step_index, coded_components; int sfIndx, coded_values, max_coded_values, quant_step_index, coded_components;
int band_flags[4], mantissa[8]; int band_flags[4], mantissa[8];
float *pCoef; float *pCoef;
float scalefactor; float scalefactor;
int component_count = 0;
component_count = 0;
*numComponents = 0;
components = get_bits(gb,5); components = get_bits(gb,5);
@ -480,9 +477,7 @@ static int decodeTonalComponents (GetBitContext *gb, int *numComponents, tonal_c
} }
} }
*numComponents = component_count; return component_count;
return 0;
} }
/** /**
@ -739,8 +734,8 @@ static int decodeChannelSoundUnit (ATRAC3Context *q, GetBitContext *gb, channel_
result = decodeGainControl (gb, &(pSnd->gainBlock[pSnd->gcBlkSwitch]), pSnd->bandsCoded); result = decodeGainControl (gb, &(pSnd->gainBlock[pSnd->gcBlkSwitch]), pSnd->bandsCoded);
if (result) return result; if (result) return result;
result = decodeTonalComponents (gb, &pSnd->numComponents, pSnd->components, pSnd->bandsCoded); pSnd->numComponents = decodeTonalComponents (gb, pSnd->components, pSnd->bandsCoded);
if (result) return result; if (pSnd->numComponents == -1) return -1;
numSubbands = decodeSpectrum (gb, pSnd->spectrum); numSubbands = decodeSpectrum (gb, pSnd->spectrum);