mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/mlpenc: use variables local to for loops
This commit is contained in:
Paul B Mahol
parent
75001ae844
commit
e811b0080e
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@ -236,7 +236,6 @@ static int compare_filter_params(const ChannelParams *prev_cp, const ChannelPara
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{
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const FilterParams *prev = &prev_cp->filter_params[filter];
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const FilterParams *fp = &cp->filter_params[filter];
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int i;
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if (prev->order != fp->order)
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return 1;
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@ -247,7 +246,7 @@ static int compare_filter_params(const ChannelParams *prev_cp, const ChannelPara
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if (prev->shift != fp->shift)
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return 1;
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for (i = 0; i < fp->order; i++)
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for (int i = 0; i < fp->order; i++)
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if (prev_cp->coeff[filter][i] != cp->coeff[filter][i])
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return 1;
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@ -260,7 +259,6 @@ static int compare_filter_params(const ChannelParams *prev_cp, const ChannelPara
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static int compare_matrix_params(MLPEncodeContext *ctx, const MatrixParams *prev, const MatrixParams *mp)
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{
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RestartHeader *rh = ctx->cur_restart_header;
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unsigned int channel, mat;
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if (prev->count != mp->count)
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return 1;
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@ -268,15 +266,15 @@ static int compare_matrix_params(MLPEncodeContext *ctx, const MatrixParams *prev
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if (!prev->count)
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return 0;
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for (channel = rh->min_channel; channel <= rh->max_channel; channel++)
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for (unsigned int channel = rh->min_channel; channel <= rh->max_channel; channel++)
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if (prev->fbits[channel] != mp->fbits[channel])
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return 1;
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for (mat = 0; mat < mp->count; mat++) {
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for (unsigned int mat = 0; mat < mp->count; mat++) {
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if (prev->outch[mat] != mp->outch[mat])
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return 1;
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for (channel = 0; channel < ctx->num_channels; channel++)
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for (unsigned int channel = 0; channel < ctx->num_channels; channel++)
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if (prev->coeff[mat][channel] != mp->coeff[mat][channel])
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return 1;
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}
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@ -294,7 +292,6 @@ static int compare_decoding_params(MLPEncodeContext *ctx)
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const MatrixParams *prev_mp = &prev->matrix_params;
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MatrixParams *mp = &dp->matrix_params;
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RestartHeader *rh = ctx->cur_restart_header;
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unsigned int ch;
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int retval = 0;
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if (prev->param_presence_flags != dp->param_presence_flags)
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@ -306,19 +303,19 @@ static int compare_decoding_params(MLPEncodeContext *ctx)
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if (compare_matrix_params(ctx, prev_mp, mp))
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retval |= PARAM_MATRIX;
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for (ch = 0; ch <= rh->max_matrix_channel; ch++)
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for (unsigned int ch = 0; ch <= rh->max_matrix_channel; ch++)
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if (prev_mp->shift[ch] != mp->shift[ch]) {
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retval |= PARAM_OUTSHIFT;
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break;
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}
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for (ch = 0; ch <= rh->max_channel; ch++)
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for (unsigned int ch = 0; ch <= rh->max_channel; ch++)
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if (prev->quant_step_size[ch] != dp->quant_step_size[ch]) {
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retval |= PARAM_QUANTSTEP;
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break;
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}
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for (ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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for (unsigned int ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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const ChannelParams *prev_cp = &ctx->prev_channel_params[ch];
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ChannelParams *cp = &ctx->cur_channel_params[ch];
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@ -345,7 +342,6 @@ static void copy_filter_params(ChannelParams *dst_cp, ChannelParams *src_cp, int
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{
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FilterParams *dst = &dst_cp->filter_params[filter];
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FilterParams *src = &src_cp->filter_params[filter];
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unsigned int order;
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dst->order = src->order;
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@ -356,7 +352,7 @@ static void copy_filter_params(ChannelParams *dst_cp, ChannelParams *src_cp, int
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dst->coeff_bits = src->coeff_bits;
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}
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for (order = 0; order < dst->order; order++)
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for (unsigned int order = 0; order < dst->order; order++)
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dst_cp->coeff[filter][order] = src_cp->coeff[filter][order];
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}
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@ -365,18 +361,16 @@ static void copy_matrix_params(MatrixParams *dst, MatrixParams *src)
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dst->count = src->count;
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if (dst->count) {
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unsigned int channel, count;
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for (channel = 0; channel < MAX_CHANNELS; channel++) {
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for (unsigned int channel = 0; channel < MAX_CHANNELS; channel++) {
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dst->fbits[channel] = src->fbits[channel];
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dst->shift[channel] = src->shift[channel];
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for (count = 0; count < MAX_MATRICES; count++)
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for (unsigned int count = 0; count < MAX_MATRICES; count++)
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dst->coeff[count][channel] = src->coeff[count][channel];
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}
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for (count = 0; count < MAX_MATRICES; count++)
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for (unsigned int count = 0; count < MAX_MATRICES; count++)
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dst->outch[count] = src->outch[count];
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}
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}
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@ -384,23 +378,19 @@ static void copy_matrix_params(MatrixParams *dst, MatrixParams *src)
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static void copy_restart_frame_params(MLPEncodeContext *ctx,
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unsigned int substr)
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{
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unsigned int index;
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for (index = 0; index < ctx->number_of_subblocks; index++) {
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for (unsigned int index = 0; index < ctx->number_of_subblocks; index++) {
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DecodingParams *dp = ctx->seq_decoding_params + index*(ctx->num_substreams) + substr;
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unsigned int channel;
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copy_matrix_params(&dp->matrix_params, &ctx->cur_decoding_params->matrix_params);
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for (channel = 0; channel < ctx->avctx->channels; channel++) {
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for (unsigned int channel = 0; channel < ctx->avctx->channels; channel++) {
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ChannelParams *cp = ctx->seq_channel_params + index*(ctx->avctx->channels) + channel;
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unsigned int filter;
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dp->quant_step_size[channel] = ctx->cur_decoding_params->quant_step_size[channel];
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dp->matrix_params.shift[channel] = ctx->cur_decoding_params->matrix_params.shift[channel];
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if (index)
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for (filter = 0; filter < NUM_FILTERS; filter++)
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for (unsigned int filter = 0; filter < NUM_FILTERS; filter++)
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copy_filter_params(cp, &ctx->cur_channel_params[channel], filter);
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}
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}
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@ -439,11 +429,9 @@ static void clear_channel_params(ChannelParams channel_params[MAX_CHANNELS], int
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static void default_decoding_params(MLPEncodeContext *ctx,
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DecodingParams decoding_params[MAX_SUBSTREAMS])
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{
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unsigned int substr;
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clear_decoding_params(decoding_params, ctx->num_substreams);
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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DecodingParams *dp = &decoding_params[substr];
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uint8_t param_presence_flags = 0;
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@ -495,7 +483,6 @@ static av_cold int mlp_encode_init(AVCodecContext *avctx)
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{
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static AVOnce init_static_once = AV_ONCE_INIT;
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MLPEncodeContext *ctx = avctx->priv_data;
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unsigned int substr, index;
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unsigned int sum = 0;
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size_t size;
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int ret;
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@ -678,7 +665,7 @@ static av_cold int mlp_encode_init(AVCodecContext *avctx)
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if (!ctx->lossless_check_data)
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return AVERROR(ENOMEM);
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for (index = 0; index < ctx->restart_intervals; index++) {
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for (unsigned int index = 0; index < ctx->restart_intervals; index++) {
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ctx->seq_offset[index] = sum;
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ctx->seq_size [index] = ((index + 1) * ctx->min_restart_interval) + 1;
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sum += ctx->seq_size[index];
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@ -694,7 +681,7 @@ static av_cold int mlp_encode_init(AVCodecContext *avctx)
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if (!ctx->decoding_params)
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return AVERROR(ENOMEM);
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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RestartHeader *rh = &ctx->restart_header [substr];
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/* TODO see if noisegen_seed is really worth it. */
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@ -795,7 +782,6 @@ static void write_restart_header(MLPEncodeContext *ctx, PutBitContext *pb)
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unsigned int start_count = put_bits_count(pb);
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PutBitContext tmpb;
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uint8_t checksum;
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unsigned int ch;
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put_bits(pb, 14, 0x31ea ); /* TODO 0x31eb */
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put_bits(pb, 16, ctx->timestamp );
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@ -812,7 +798,7 @@ static void write_restart_header(MLPEncodeContext *ctx, PutBitContext *pb)
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put_bits(pb, 8, lossless_check );
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put_bits(pb, 16, 0 ); /* ignored */
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for (ch = 0; ch <= rh->max_matrix_channel; ch++)
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for (unsigned int ch = 0; ch <= rh->max_matrix_channel; ch++)
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put_bits(pb, 6, ch);
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/* Data must be flushed for the checksum to be correct. */
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@ -829,18 +815,15 @@ static void write_matrix_params(MLPEncodeContext *ctx, PutBitContext *pb)
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{
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DecodingParams *dp = ctx->cur_decoding_params;
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MatrixParams *mp = &dp->matrix_params;
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unsigned int mat;
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put_bits(pb, 4, mp->count);
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for (mat = 0; mat < mp->count; mat++) {
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unsigned int channel;
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for (unsigned int mat = 0; mat < mp->count; mat++) {
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put_bits(pb, 4, mp->outch[mat]); /* matrix_out_ch */
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put_bits(pb, 4, mp->fbits[mat]);
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put_bits(pb, 1, 0 ); /* lsb_bypass */
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for (channel = 0; channel < ctx->num_channels; channel++) {
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for (unsigned int channel = 0; channel < ctx->num_channels; channel++) {
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int32_t coeff = mp->coeff[mat][channel];
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if (coeff) {
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@ -865,14 +848,13 @@ static void write_filter_params(MLPEncodeContext *ctx, PutBitContext *pb,
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put_bits(pb, 4, fp->order);
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if (fp->order > 0) {
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int i;
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int32_t *fcoeff = ctx->cur_channel_params[channel].coeff[filter];
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put_bits(pb, 4, fp->shift );
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put_bits(pb, 5, fp->coeff_bits );
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put_bits(pb, 3, fp->coeff_shift);
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for (i = 0; i < fp->order; i++) {
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for (int i = 0; i < fp->order; i++) {
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put_sbits(pb, fp->coeff_bits, fcoeff[i] >> fp->coeff_shift);
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}
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@ -890,7 +872,6 @@ static void write_decoding_params(MLPEncodeContext *ctx, PutBitContext *pb,
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DecodingParams *dp = ctx->cur_decoding_params;
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RestartHeader *rh = ctx->cur_restart_header;
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MatrixParams *mp = &dp->matrix_params;
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unsigned int ch;
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if (dp->param_presence_flags != PARAMS_DEFAULT &&
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params_changed & PARAM_PRESENCE_FLAGS) {
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@ -921,7 +902,7 @@ static void write_decoding_params(MLPEncodeContext *ctx, PutBitContext *pb,
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if (dp->param_presence_flags & PARAM_OUTSHIFT) {
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if (params_changed & PARAM_OUTSHIFT) {
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put_bits(pb, 1, 1);
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for (ch = 0; ch <= rh->max_matrix_channel; ch++)
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for (unsigned int ch = 0; ch <= rh->max_matrix_channel; ch++)
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put_sbits(pb, 4, mp->shift[ch]);
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} else {
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put_bits(pb, 1, 0);
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@ -931,14 +912,14 @@ static void write_decoding_params(MLPEncodeContext *ctx, PutBitContext *pb,
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if (dp->param_presence_flags & PARAM_QUANTSTEP) {
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if (params_changed & PARAM_QUANTSTEP) {
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put_bits(pb, 1, 1);
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for (ch = 0; ch <= rh->max_channel; ch++)
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for (unsigned int ch = 0; ch <= rh->max_channel; ch++)
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put_bits(pb, 4, dp->quant_step_size[ch]);
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} else {
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put_bits(pb, 1, 0);
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}
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}
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for (ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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for (unsigned int ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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ChannelParams *cp = &ctx->cur_channel_params[ch];
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if (dp->param_presence_flags & 0xF) {
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@ -993,9 +974,8 @@ static void write_block_data(MLPEncodeContext *ctx, PutBitContext *pb)
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int32_t sign_huff_offset[MAX_CHANNELS];
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int codebook_index [MAX_CHANNELS];
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int lsb_bits [MAX_CHANNELS];
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unsigned int i, ch;
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for (ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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for (unsigned int ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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ChannelParams *cp = &ctx->cur_channel_params[ch];
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int sign_shift;
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@ -1013,8 +993,8 @@ static void write_block_data(MLPEncodeContext *ctx, PutBitContext *pb)
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sign_huff_offset[ch] -= 1 << sign_shift;
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}
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for (i = 0; i < dp->blocksize; i++) {
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for (ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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for (unsigned int i = 0; i < dp->blocksize; i++) {
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for (unsigned int ch = rh->min_channel; ch <= rh->max_channel; ch++) {
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int32_t sample = *sample_buffer++ >> dp->quant_step_size[ch];
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sample -= sign_huff_offset[ch];
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@ -1038,15 +1018,13 @@ static uint8_t *write_substrs(MLPEncodeContext *ctx, uint8_t *buf, int buf_size,
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uint16_t substream_data_len[MAX_SUBSTREAMS])
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{
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int32_t *lossless_check_data = ctx->lossless_check_data;
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unsigned int substr;
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int end = 0;
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lossless_check_data += ctx->frame_index * ctx->num_substreams;
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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unsigned int cur_subblock_index = ctx->major_cur_subblock_index;
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unsigned int num_subblocks = ctx->major_filter_state_subblock;
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unsigned int subblock;
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RestartHeader *rh = &ctx->restart_header [substr];
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int substr_restart_frame = restart_frame;
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uint8_t parity, checksum;
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@ -1057,7 +1035,7 @@ static uint8_t *write_substrs(MLPEncodeContext *ctx, uint8_t *buf, int buf_size,
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init_put_bits(&pb, buf, buf_size);
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for (subblock = 0; subblock <= num_subblocks; subblock++) {
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for (unsigned int subblock = 0; subblock <= num_subblocks; subblock++) {
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unsigned int subblock_index;
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subblock_index = cur_subblock_index++;
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@ -1136,12 +1114,11 @@ static void write_frame_headers(MLPEncodeContext *ctx, uint8_t *frame_header,
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{
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uint16_t access_unit_header = 0;
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uint16_t parity_nibble = 0;
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unsigned int substr;
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parity_nibble = ctx->dts;
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parity_nibble ^= length;
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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uint16_t substr_hdr = 0;
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substr_hdr |= (0 << 15); /* extraword */
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@ -1173,7 +1150,6 @@ static int write_access_unit(MLPEncodeContext *ctx, uint8_t *buf,
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{
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uint16_t substream_data_len[MAX_SUBSTREAMS];
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uint8_t *buf1, *buf0 = buf;
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unsigned int substr;
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int total_length;
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/* Frame header will be written at the end. */
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@ -1189,7 +1165,7 @@ static int write_access_unit(MLPEncodeContext *ctx, uint8_t *buf,
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buf1 = buf;
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/* Substream headers will be written at the end. */
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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buf += 2;
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buf_size -= 2;
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}
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@ -1217,20 +1193,17 @@ static void input_data_internal(MLPEncodeContext *ctx, const uint8_t *samples,
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int32_t *lossless_check_data = ctx->lossless_check_data;
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const int32_t *samples_32 = (const int32_t *) samples;
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const int16_t *samples_16 = (const int16_t *) samples;
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unsigned int substr;
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lossless_check_data += ctx->frame_index * ctx->num_substreams;
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for (substr = 0; substr < ctx->num_substreams; substr++) {
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for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
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RestartHeader *rh = &ctx->restart_header [substr];
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int32_t *sample_buffer = ctx->inout_buffer;
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int32_t temp_lossless_check_data = 0;
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uint32_t greatest = 0;
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unsigned int channel;
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int i;
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for (i = 0; i < ctx->avctx->frame_size; i++) {
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for (channel = 0; channel <= rh->max_channel; channel++) {
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for (int i = 0; i < ctx->avctx->frame_size; i++) {
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for (unsigned int channel = 0; channel <= rh->max_channel; channel++) {
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uint32_t abs_sample;
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int32_t sample;
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@ -1266,15 +1239,13 @@ static void input_data(MLPEncodeContext *ctx, void *samples)
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static void input_to_sample_buffer(MLPEncodeContext *ctx)
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{
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int32_t *sample_buffer = ctx->sample_buffer;
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unsigned int index;
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for (index = 0; index < ctx->number_of_frames; index++) {
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for (unsigned int index = 0; index < ctx->number_of_frames; index++) {
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unsigned int cur_index = (ctx->starting_frame_index + index) % ctx->max_restart_interval;
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int32_t *input_buffer = ctx->inout_buffer + cur_index * ctx->one_sample_buffer_size;
|
||||
unsigned int i, channel;
|
||||
|
||||
for (i = 0; i < ctx->avctx->frame_size; i++) {
|
||||
for (channel = 0; channel < ctx->avctx->channels; channel++)
|
||||
for (unsigned int i = 0; i < ctx->avctx->frame_size; i++) {
|
||||
for (unsigned int channel = 0; channel < ctx->avctx->channels; channel++)
|
||||
*sample_buffer++ = *input_buffer++;
|
||||
sample_buffer += 2; /* noise_channels */
|
||||
input_buffer += 2; /* noise_channels */
|
||||
|
|
@ -1309,19 +1280,17 @@ static void determine_quant_step_size(MLPEncodeContext *ctx)
|
|||
MatrixParams *mp = &dp->matrix_params;
|
||||
int32_t *sample_buffer = ctx->sample_buffer;
|
||||
int32_t sample_mask[MAX_CHANNELS];
|
||||
unsigned int channel;
|
||||
int i;
|
||||
|
||||
memset(sample_mask, 0x00, sizeof(sample_mask));
|
||||
|
||||
for (i = 0; i < ctx->number_of_samples; i++) {
|
||||
for (channel = 0; channel <= rh->max_channel; channel++)
|
||||
for (unsigned int i = 0; i < ctx->number_of_samples; i++) {
|
||||
for (unsigned int channel = 0; channel <= rh->max_channel; channel++)
|
||||
sample_mask[channel] |= *sample_buffer++;
|
||||
|
||||
sample_buffer += 2; /* noise channels */
|
||||
}
|
||||
|
||||
for (channel = 0; channel <= rh->max_channel; channel++)
|
||||
for (unsigned int channel = 0; channel <= rh->max_channel; channel++)
|
||||
dp->quant_step_size[channel] = number_trailing_zeroes(sample_mask[channel]) - mp->shift[channel];
|
||||
}
|
||||
|
||||
|
|
@ -1334,9 +1303,8 @@ static void code_filter_coeffs(MLPEncodeContext *ctx, FilterParams *fp, int32_t
|
|||
int min = INT_MAX, max = INT_MIN;
|
||||
int bits, shift;
|
||||
int coeff_mask = 0;
|
||||
int order;
|
||||
|
||||
for (order = 0; order < fp->order; order++) {
|
||||
for (int order = 0; order < fp->order; order++) {
|
||||
int coeff = fcoeff[order];
|
||||
|
||||
if (coeff < min)
|
||||
|
|
@ -1379,10 +1347,9 @@ static void set_filter_params(MLPEncodeContext *ctx,
|
|||
int32_t *lpc_samples = ctx->lpc_sample_buffer;
|
||||
int32_t *fcoeff = ctx->cur_channel_params[channel].coeff[filter];
|
||||
int shift[MLP_MAX_LPC_ORDER];
|
||||
unsigned int i;
|
||||
int order;
|
||||
|
||||
for (i = 0; i < ctx->number_of_samples; i++) {
|
||||
for (unsigned int i = 0; i < ctx->number_of_samples; i++) {
|
||||
*lpc_samples++ = *sample_buffer;
|
||||
sample_buffer += ctx->num_channels;
|
||||
}
|
||||
|
|
@ -1396,7 +1363,7 @@ static void set_filter_params(MLPEncodeContext *ctx,
|
|||
fp->order = order;
|
||||
fp->shift = shift[order-1];
|
||||
|
||||
for (i = 0; i < order; i++)
|
||||
for (unsigned int i = 0; i < order; i++)
|
||||
fcoeff[i] = coefs[order-1][i];
|
||||
|
||||
code_filter_coeffs(ctx, fp, fcoeff);
|
||||
|
|
@ -1410,10 +1377,9 @@ static void set_filter_params(MLPEncodeContext *ctx,
|
|||
static void determine_filters(MLPEncodeContext *ctx)
|
||||
{
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
int channel, filter;
|
||||
|
||||
for (channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
for (filter = 0; filter < NUM_FILTERS; filter++)
|
||||
for (int channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
for (int filter = 0; filter < NUM_FILTERS; filter++)
|
||||
set_filter_params(ctx, channel, filter, 0);
|
||||
}
|
||||
}
|
||||
|
|
@ -1463,10 +1429,9 @@ static void code_matrix_coeffs(MLPEncodeContext *ctx, unsigned int mat)
|
|||
DecodingParams *dp = ctx->cur_decoding_params;
|
||||
MatrixParams *mp = &dp->matrix_params;
|
||||
int32_t coeff_mask = 0;
|
||||
unsigned int channel;
|
||||
unsigned int bits;
|
||||
|
||||
for (channel = 0; channel < ctx->num_channels; channel++) {
|
||||
for (unsigned int channel = 0; channel < ctx->num_channels; channel++) {
|
||||
int32_t coeff = mp->coeff[mat][channel];
|
||||
coeff_mask |= coeff;
|
||||
}
|
||||
|
|
@ -1482,8 +1447,6 @@ static void lossless_matrix_coeffs(MLPEncodeContext *ctx)
|
|||
DecodingParams *dp = ctx->cur_decoding_params;
|
||||
MatrixParams *mp = &dp->matrix_params;
|
||||
unsigned int shift = 0;
|
||||
unsigned int channel;
|
||||
int mat;
|
||||
enum MLPChMode mode;
|
||||
|
||||
/* No decorrelation for non-stereo. */
|
||||
|
|
@ -1518,10 +1481,10 @@ static void lossless_matrix_coeffs(MLPEncodeContext *ctx)
|
|||
break;
|
||||
}
|
||||
|
||||
for (mat = 0; mat < mp->count; mat++)
|
||||
for (int mat = 0; mat < mp->count; mat++)
|
||||
code_matrix_coeffs(ctx, mat);
|
||||
|
||||
for (channel = 0; channel < ctx->num_channels; channel++)
|
||||
for (unsigned int channel = 0; channel < ctx->num_channels; channel++)
|
||||
mp->shift[channel] = shift;
|
||||
}
|
||||
|
||||
|
|
@ -1620,7 +1583,6 @@ static inline void codebook_bits_offset(MLPEncodeContext *ctx,
|
|||
int lsb_bits = 0, bitcount = 0;
|
||||
int offset_min = INT_MAX, offset_max = INT_MAX;
|
||||
int unsign, mask;
|
||||
int i;
|
||||
|
||||
sample_min -= offset;
|
||||
sample_max -= offset;
|
||||
|
|
@ -1639,7 +1601,7 @@ static inline void codebook_bits_offset(MLPEncodeContext *ctx,
|
|||
lsb_bits++;
|
||||
}
|
||||
|
||||
for (i = 0; i < dp->blocksize; i++) {
|
||||
for (int i = 0; i < dp->blocksize; i++) {
|
||||
int32_t sample = *sample_buffer >> dp->quant_step_size[channel];
|
||||
int temp_min, temp_max;
|
||||
|
||||
|
|
@ -1714,19 +1676,17 @@ static void determine_bits(MLPEncodeContext *ctx)
|
|||
{
|
||||
DecodingParams *dp = ctx->cur_decoding_params;
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
unsigned int channel;
|
||||
|
||||
for (channel = 0; channel <= rh->max_channel; channel++) {
|
||||
for (unsigned int channel = 0; channel <= rh->max_channel; channel++) {
|
||||
ChannelParams *cp = &ctx->cur_channel_params[channel];
|
||||
int32_t *sample_buffer = ctx->sample_buffer + channel;
|
||||
int32_t min = INT32_MAX, max = INT32_MIN;
|
||||
int no_filters_used = !cp->filter_params[FIR].order;
|
||||
int average = 0;
|
||||
int offset = 0;
|
||||
int i;
|
||||
|
||||
/* Determine extremes and average. */
|
||||
for (i = 0; i < dp->blocksize; i++) {
|
||||
for (int i = 0; i < dp->blocksize; i++) {
|
||||
int32_t sample = *sample_buffer >> dp->quant_step_size[channel];
|
||||
if (sample < min)
|
||||
min = sample;
|
||||
|
|
@ -1746,7 +1706,7 @@ static void determine_bits(MLPEncodeContext *ctx)
|
|||
no_codebook_bits_offset(ctx, channel, offset, min, max, &ctx->cur_best_offset[channel][0]);
|
||||
}
|
||||
|
||||
for (i = 1; i < NUM_CODEBOOKS; i++) {
|
||||
for (int i = 1; i < NUM_CODEBOOKS; i++) {
|
||||
BestOffset temp_bo = { 0, INT_MAX, 0, 0, 0, };
|
||||
int16_t offset_max;
|
||||
|
||||
|
|
@ -1790,25 +1750,23 @@ static int apply_filter(MLPEncodeContext *ctx, unsigned int channel)
|
|||
int32_t *sample_buffer = ctx->sample_buffer + channel;
|
||||
unsigned int number_of_samples = ctx->number_of_samples;
|
||||
unsigned int filter_shift = fp[FIR]->shift;
|
||||
int filter;
|
||||
int i, ret = 0;
|
||||
int ret = 0;
|
||||
|
||||
for (i = 0; i < 8; i++) {
|
||||
for (int i = 0; i < 8; i++) {
|
||||
ctx->filter_state_buffer[FIR][i] = *sample_buffer;
|
||||
ctx->filter_state_buffer[IIR][i] = *sample_buffer;
|
||||
|
||||
sample_buffer += ctx->num_channels;
|
||||
}
|
||||
|
||||
for (i = 8; i < number_of_samples; i++) {
|
||||
for (int i = 8; i < number_of_samples; i++) {
|
||||
int32_t sample = *sample_buffer;
|
||||
unsigned int order;
|
||||
int64_t accum = 0;
|
||||
int64_t residual;
|
||||
|
||||
for (filter = 0; filter < NUM_FILTERS; filter++) {
|
||||
for (int filter = 0; filter < NUM_FILTERS; filter++) {
|
||||
int32_t *fcoeff = ctx->cur_channel_params[channel].coeff[filter];
|
||||
for (order = 0; order < fp[filter]->order; order++)
|
||||
for (unsigned int order = 0; order < fp[filter]->order; order++)
|
||||
accum += (int64_t)ctx->filter_state_buffer[filter][i - 1 - order] *
|
||||
fcoeff[order];
|
||||
}
|
||||
|
|
@ -1828,7 +1786,7 @@ static int apply_filter(MLPEncodeContext *ctx, unsigned int channel)
|
|||
}
|
||||
|
||||
sample_buffer = ctx->sample_buffer + channel;
|
||||
for (i = 0; i < number_of_samples; i++) {
|
||||
for (int i = 0; i < number_of_samples; i++) {
|
||||
*sample_buffer = ctx->filter_state_buffer[IIR][i];
|
||||
|
||||
sample_buffer += ctx->num_channels;
|
||||
|
|
@ -1840,9 +1798,8 @@ static int apply_filter(MLPEncodeContext *ctx, unsigned int channel)
|
|||
static void apply_filters(MLPEncodeContext *ctx)
|
||||
{
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
int channel;
|
||||
|
||||
for (channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
for (int channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
if (apply_filter(ctx, channel) < 0) {
|
||||
/* Filter is horribly wrong.
|
||||
* Clear filter params and update state. */
|
||||
|
|
@ -1858,10 +1815,9 @@ static void generate_2_noise_channels(MLPEncodeContext *ctx)
|
|||
{
|
||||
int32_t *sample_buffer = ctx->sample_buffer + ctx->num_channels - 2;
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
unsigned int i;
|
||||
uint32_t seed = rh->noisegen_seed;
|
||||
|
||||
for (i = 0; i < ctx->number_of_samples; i++) {
|
||||
for (unsigned int i = 0; i < ctx->number_of_samples; i++) {
|
||||
uint16_t seed_shr7 = seed >> 7;
|
||||
*sample_buffer++ = ((int8_t)(seed >> 15)) * (1 << rh->noise_shift);
|
||||
*sample_buffer++ = ((int8_t) seed_shr7) * (1 << rh->noise_shift);
|
||||
|
|
@ -1880,21 +1836,18 @@ static void rematrix_channels(MLPEncodeContext *ctx)
|
|||
DecodingParams *dp = ctx->cur_decoding_params;
|
||||
MatrixParams *mp = &dp->matrix_params;
|
||||
int32_t *sample_buffer = ctx->sample_buffer;
|
||||
unsigned int mat, i, maxchan;
|
||||
unsigned int maxchan = ctx->num_channels;
|
||||
|
||||
maxchan = ctx->num_channels;
|
||||
|
||||
for (mat = 0; mat < mp->count; mat++) {
|
||||
for (unsigned int mat = 0; mat < mp->count; mat++) {
|
||||
unsigned int msb_mask_bits = (ctx->avctx->sample_fmt == AV_SAMPLE_FMT_S16 ? 8 : 0) - mp->shift[mat];
|
||||
int32_t mask = MSB_MASK(msb_mask_bits);
|
||||
unsigned int outch = mp->outch[mat];
|
||||
|
||||
sample_buffer = ctx->sample_buffer;
|
||||
for (i = 0; i < ctx->number_of_samples; i++) {
|
||||
unsigned int src_ch;
|
||||
for (unsigned int i = 0; i < ctx->number_of_samples; i++) {
|
||||
int64_t accum = 0;
|
||||
|
||||
for (src_ch = 0; src_ch < maxchan; src_ch++) {
|
||||
for (unsigned int src_ch = 0; src_ch < maxchan; src_ch++) {
|
||||
int32_t sample = *(sample_buffer + src_ch);
|
||||
accum += (int64_t) sample * mp->forco[mat][src_ch];
|
||||
}
|
||||
|
|
@ -1950,29 +1903,25 @@ static void set_best_codebook(MLPEncodeContext *ctx)
|
|||
{
|
||||
DecodingParams *dp = ctx->cur_decoding_params;
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
unsigned int channel;
|
||||
|
||||
for (channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
for (unsigned int channel = rh->min_channel; channel <= rh->max_channel; channel++) {
|
||||
const BestOffset *prev_bo = restart_best_offset;
|
||||
BestOffset *cur_bo;
|
||||
PathCounter path_counter[NUM_CODEBOOKS + 1];
|
||||
unsigned int best_codebook;
|
||||
unsigned int index;
|
||||
char *best_path;
|
||||
|
||||
clear_path_counter(path_counter);
|
||||
|
||||
for (index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
for (unsigned int index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
unsigned int best_bitcount = INT_MAX;
|
||||
unsigned int codebook;
|
||||
|
||||
cur_bo = ctx->best_offset[index][channel];
|
||||
|
||||
for (codebook = 0; codebook < NUM_CODEBOOKS; codebook++) {
|
||||
for (unsigned int codebook = 0; codebook < NUM_CODEBOOKS; codebook++) {
|
||||
int prev_best_bitcount = INT_MAX;
|
||||
int last_best;
|
||||
|
||||
for (last_best = 0; last_best < 2; last_best++) {
|
||||
for (unsigned int last_best = 0; last_best < 2; last_best++) {
|
||||
PathCounter *dst_path = &path_counter[codebook];
|
||||
PathCounter *src_path;
|
||||
int temp_bitcount;
|
||||
|
|
@ -2014,7 +1963,7 @@ static void set_best_codebook(MLPEncodeContext *ctx)
|
|||
best_path = path_counter[NUM_CODEBOOKS].path + 1;
|
||||
|
||||
/* Update context. */
|
||||
for (index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
for (unsigned int index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
ChannelParams *cp = ctx->seq_channel_params + index*(ctx->avctx->channels) + channel;
|
||||
|
||||
best_codebook = *best_path++;
|
||||
|
|
@ -2034,12 +1983,10 @@ static void set_best_codebook(MLPEncodeContext *ctx)
|
|||
static void set_major_params(MLPEncodeContext *ctx)
|
||||
{
|
||||
RestartHeader *rh = ctx->cur_restart_header;
|
||||
unsigned int index;
|
||||
unsigned int substr;
|
||||
uint8_t max_huff_lsbs = 0;
|
||||
uint8_t max_output_bits = 0;
|
||||
|
||||
for (substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
DecodingParams *seq_dp = (DecodingParams *) ctx->decoding_params+
|
||||
(ctx->restart_intervals - 1)*(ctx->sequence_size)*(ctx->avctx->channels) +
|
||||
(ctx->seq_offset[ctx->restart_intervals - 1])*(ctx->avctx->channels);
|
||||
|
|
@ -2047,10 +1994,9 @@ static void set_major_params(MLPEncodeContext *ctx)
|
|||
ChannelParams *seq_cp = (ChannelParams *) ctx->channel_params +
|
||||
(ctx->restart_intervals - 1)*(ctx->sequence_size)*(ctx->avctx->channels) +
|
||||
(ctx->seq_offset[ctx->restart_intervals - 1])*(ctx->avctx->channels);
|
||||
unsigned int channel;
|
||||
for (index = 0; index < ctx->seq_size[ctx->restart_intervals-1]; index++) {
|
||||
for (unsigned int index = 0; index < ctx->seq_size[ctx->restart_intervals-1]; index++) {
|
||||
memcpy(&ctx->major_decoding_params[index][substr], seq_dp + index*(ctx->num_substreams) + substr, sizeof(DecodingParams));
|
||||
for (channel = 0; channel < ctx->avctx->channels; channel++) {
|
||||
for (unsigned int channel = 0; channel < ctx->avctx->channels; channel++) {
|
||||
uint8_t huff_lsbs = (seq_cp + index*(ctx->avctx->channels) + channel)->huff_lsbs;
|
||||
if (max_huff_lsbs < huff_lsbs)
|
||||
max_huff_lsbs = huff_lsbs;
|
||||
|
|
@ -2063,19 +2009,19 @@ static void set_major_params(MLPEncodeContext *ctx)
|
|||
|
||||
rh->max_huff_lsbs = max_huff_lsbs;
|
||||
|
||||
for (index = 0; index < ctx->number_of_frames; index++)
|
||||
for (unsigned int index = 0; index < ctx->number_of_frames; index++)
|
||||
if (max_output_bits < ctx->max_output_bits[index])
|
||||
max_output_bits = ctx->max_output_bits[index];
|
||||
rh->max_output_bits = max_output_bits;
|
||||
|
||||
for (substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
|
||||
ctx->cur_restart_header = &ctx->restart_header[substr];
|
||||
|
||||
ctx->prev_decoding_params = &restart_decoding_params[substr];
|
||||
ctx->prev_channel_params = restart_channel_params;
|
||||
|
||||
for (index = 0; index < MAJOR_HEADER_INTERVAL + 1; index++) {
|
||||
for (unsigned int index = 0; index < MAJOR_HEADER_INTERVAL + 1; index++) {
|
||||
ctx->cur_decoding_params = &ctx->major_decoding_params[index][substr];
|
||||
ctx->cur_channel_params = ctx->major_channel_params[index];
|
||||
|
||||
|
|
@ -2095,10 +2041,8 @@ static void analyze_sample_buffer(MLPEncodeContext *ctx)
|
|||
{
|
||||
ChannelParams *seq_cp = ctx->seq_channel_params;
|
||||
DecodingParams *seq_dp = ctx->seq_decoding_params;
|
||||
unsigned int index;
|
||||
unsigned int substr;
|
||||
|
||||
for (substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
ctx->cur_restart_header = &ctx->restart_header[substr];
|
||||
ctx->cur_decoding_params = seq_dp + 1*(ctx->num_substreams) + substr;
|
||||
ctx->cur_channel_params = seq_cp + 1*(ctx->avctx->channels);
|
||||
|
|
@ -2115,7 +2059,7 @@ static void analyze_sample_buffer(MLPEncodeContext *ctx)
|
|||
/* Copy frame_size from frames 0...max to decoding_params 1...max + 1
|
||||
* decoding_params[0] is for the filter state subblock.
|
||||
*/
|
||||
for (index = 0; index < ctx->number_of_frames; index++) {
|
||||
for (unsigned int index = 0; index < ctx->number_of_frames; index++) {
|
||||
DecodingParams *dp = seq_dp + (index + 1)*(ctx->num_substreams) + substr;
|
||||
dp->blocksize = ctx->avctx->frame_size;
|
||||
}
|
||||
|
|
@ -2126,7 +2070,7 @@ static void analyze_sample_buffer(MLPEncodeContext *ctx)
|
|||
(seq_dp + substr)->blocksize = 8;
|
||||
(seq_dp + 1*(ctx->num_substreams) + substr)->blocksize -= 8;
|
||||
|
||||
for (index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
for (unsigned int index = 0; index < ctx->number_of_subblocks; index++) {
|
||||
ctx->cur_decoding_params = seq_dp + index*(ctx->num_substreams) + substr;
|
||||
ctx->cur_channel_params = seq_cp + index*(ctx->avctx->channels);
|
||||
ctx->cur_best_offset = ctx->best_offset[index];
|
||||
|
|
@ -2140,15 +2084,13 @@ static void analyze_sample_buffer(MLPEncodeContext *ctx)
|
|||
|
||||
static void process_major_frame(MLPEncodeContext *ctx)
|
||||
{
|
||||
unsigned int substr;
|
||||
|
||||
ctx->sample_buffer = ctx->major_inout_buffer;
|
||||
|
||||
ctx->starting_frame_index = 0;
|
||||
ctx->number_of_frames = ctx->major_number_of_frames;
|
||||
ctx->number_of_samples = ctx->major_frame_size;
|
||||
|
||||
for (substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
for (unsigned int substr = 0; substr < ctx->num_substreams; substr++) {
|
||||
ctx->cur_restart_header = &ctx->restart_header[substr];
|
||||
|
||||
ctx->cur_decoding_params = &ctx->major_decoding_params[1][substr];
|
||||
|
|
@ -2229,13 +2171,10 @@ input_and_return:
|
|||
restart_frame = (ctx->frame_index + 1) % ctx->min_restart_interval;
|
||||
|
||||
if (!restart_frame) {
|
||||
int seq_index;
|
||||
|
||||
for (seq_index = 0;
|
||||
for (unsigned int seq_index = 0;
|
||||
seq_index < ctx->restart_intervals && (seq_index * ctx->min_restart_interval) <= ctx->avctx->frame_number;
|
||||
seq_index++) {
|
||||
unsigned int number_of_samples;
|
||||
unsigned int index;
|
||||
|
||||
ctx->sample_buffer = ctx->major_scratch_buffer;
|
||||
ctx->inout_buffer = ctx->major_inout_buffer;
|
||||
|
|
@ -2257,7 +2196,7 @@ input_and_return:
|
|||
number_of_samples = avctx->frame_size * ctx->number_of_frames;
|
||||
ctx->number_of_samples = number_of_samples;
|
||||
|
||||
for (index = 0; index < ctx->seq_size[seq_index]; index++) {
|
||||
for (unsigned int index = 0; index < ctx->seq_size[seq_index]; index++) {
|
||||
clear_channel_params(ctx->seq_channel_params + index * ctx->avctx->channels, ctx->avctx->channels);
|
||||
default_decoding_params(ctx, ctx->seq_decoding_params + index*(ctx->num_substreams));
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue