Rename variables to clarify the channel coupling element and corresponding
target channel element. Patch by Alex Converse (alex converse gmail com) Originally committed as revision 15575 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -1247,11 +1247,11 @@ static void imdct_and_windowing(AACContext * ac, SingleChannelElement * sce) {
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*
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* @param index index into coupling gain array
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*/
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static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * sce, ChannelElement * cc, int index) {
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IndividualChannelStream * ics = &cc->ch[0].ics;
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static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * target, ChannelElement * cce, int index) {
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IndividualChannelStream * ics = &cce->ch[0].ics;
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const uint16_t * offsets = ics->swb_offset;
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float * dest = sce->coeffs;
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const float * src = cc->ch[0].coeffs;
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float * dest = target->coeffs;
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const float * src = cce->ch[0].coeffs;
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int g, i, group, k, idx = 0;
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if(ac->m4ac.object_type == AOT_AAC_LTP) {
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av_log(ac->avccontext, AV_LOG_ERROR,
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@ -1260,11 +1260,11 @@ static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * sce
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}
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for (g = 0; g < ics->num_window_groups; g++) {
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for (i = 0; i < ics->max_sfb; i++, idx++) {
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if (cc->ch[0].band_type[idx] != ZERO_BT) {
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if (cce->ch[0].band_type[idx] != ZERO_BT) {
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for (group = 0; group < ics->group_len[g]; group++) {
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for (k = offsets[i]; k < offsets[i+1]; k++) {
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// XXX dsputil-ize
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dest[group*128+k] += cc->coup.gain[index][idx] * src[group*128+k];
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dest[group*128+k] += cce->coup.gain[index][idx] * src[group*128+k];
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}
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}
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}
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@ -1279,10 +1279,10 @@ static void apply_dependent_coupling(AACContext * ac, SingleChannelElement * sce
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*
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* @param index index into coupling gain array
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*/
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static void apply_independent_coupling(AACContext * ac, SingleChannelElement * sce, ChannelElement * cc, int index) {
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static void apply_independent_coupling(AACContext * ac, SingleChannelElement * target, ChannelElement * cce, int index) {
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int i;
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for (i = 0; i < 1024; i++)
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sce->ret[i] += cc->coup.gain[index][0] * (cc->ch[0].ret[i] - ac->add_bias);
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target->ret[i] += cce->coup.gain[index][0] * (cce->ch[0].ret[i] - ac->add_bias);
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}
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/**
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@ -1293,7 +1293,7 @@ static void apply_independent_coupling(AACContext * ac, SingleChannelElement * s
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*/
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static void apply_channel_coupling(AACContext * ac, ChannelElement * cc,
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enum RawDataBlockType type, int elem_id, enum CouplingPoint coupling_point,
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void (*apply_coupling_method)(AACContext * ac, SingleChannelElement * sce, ChannelElement * cc, int index))
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void (*apply_coupling_method)(AACContext * ac, SingleChannelElement * target, ChannelElement * cce, int index))
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{
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int i, c;
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