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-rw-r--r--contrib/ffmpeg/A04-aacenc.patch82
1 files changed, 0 insertions, 82 deletions
diff --git a/contrib/ffmpeg/A04-aacenc.patch b/contrib/ffmpeg/A04-aacenc.patch
index b58441a17..e69de29bb 100644
--- a/contrib/ffmpeg/A04-aacenc.patch
+++ b/contrib/ffmpeg/A04-aacenc.patch
@@ -1,82 +0,0 @@
-commit 8bbdd20a293eab2cfac9f332613ead02a4e3c0c2
-Author: Claudio Freire <[email protected]>
-Date: Sun May 12 09:38:40 2013 +0200
-
- aacenc: Fix erasure of surround channels
-
- This was due to a miscomputation of s->cur_channel, which led to
- psy-based encoders using the psy coefficients for the wrong channel.
-
- Signed-off-by: Martin Storsjö <[email protected]>
-
-diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
-index 60eca59..b2ad47b 100644
---- a/libavcodec/aacenc.c
-+++ b/libavcodec/aacenc.c
-@@ -597,7 +597,7 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
- coeffs[ch] = cpe->ch[ch].coeffs;
- s->psy.model->analyze(&s->psy, start_ch, coeffs, wi);
- for (ch = 0; ch < chans; ch++) {
-- s->cur_channel = start_ch * 2 + ch;
-+ s->cur_channel = start_ch + ch;
- s->coder->search_for_quantizers(avctx, s, &cpe->ch[ch], s->lambda);
- }
- cpe->common_window = 0;
-@@ -613,7 +613,7 @@ static int aac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
- }
- }
- }
-- s->cur_channel = start_ch * 2;
-+ s->cur_channel = start_ch;
- if (s->options.stereo_mode && cpe->common_window) {
- if (s->options.stereo_mode > 0) {
- IndividualChannelStream *ics = &cpe->ch[0].ics;
-
-commit f4d0a63b5b5c682c18df3bba730f97a9067408ba
-Author: Claudio Freire <[email protected]>
-Date: Sat May 4 18:36:37 2013 -0300
-
- aacenc: Fix target bitrate for twoloop quantiser search
-
- This fixes a case where multichannel bitrate isn't accurately
- targetted by psy model alone, never achieving the target bitrate.
-
- Signed-off-by: Martin Storsjö <[email protected]>
-
-diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c
-index d65d8d9..35b98a9 100644
---- a/libavcodec/aaccoder.c
-+++ b/libavcodec/aaccoder.c
-@@ -710,7 +710,7 @@ static void search_for_quantizers_twoloop(AVCodecContext *avctx,
- const float lambda)
- {
- int start = 0, i, w, w2, g;
-- int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate / avctx->channels;
-+ int destbits = avctx->bit_rate * 1024.0 / avctx->sample_rate / avctx->channels * (lambda / 120.f);
- float dists[128] = { 0 }, uplims[128];
- float maxvals[128];
- int fflag, minscaler;
-
-commit 7c71ada4cad3c6aab5fa24155c379465c41cfd76
-Author: Claudio Freire <[email protected]>
-Date: Sat May 4 18:35:49 2013 -0300
-
- aacenc: Fix a rounding bug in aacpsy channel bitrate computation
-
- Signed-off-by: Martin Storsjö <[email protected]>
-
-diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c
-index 6f1ac05..66cf6d5 100644
---- a/libavcodec/aacpsy.c
-+++ b/libavcodec/aacpsy.c
-@@ -312,7 +312,7 @@ static av_cold int psy_3gpp_init(FFPsyContext *ctx) {
- AacPsyCoeffs *coeffs = pctx->psy_coef[j];
- const uint8_t *band_sizes = ctx->bands[j];
- float line_to_frequency = ctx->avctx->sample_rate / (j ? 256.f : 2048.0f);
-- float avg_chan_bits = chan_bitrate / ctx->avctx->sample_rate * (j ? 128.0f : 1024.0f);
-+ float avg_chan_bits = chan_bitrate * (j ? 128.0f : 1024.0f) / ctx->avctx->sample_rate;
- /* reference encoder uses 2.4% here instead of 60% like the spec says */
- float bark_pe = 0.024f * PSY_3GPP_BITS_TO_PE(avg_chan_bits) / num_bark;
- float en_spread_low = j ? PSY_3GPP_EN_SPREAD_LOW_S : PSY_3GPP_EN_SPREAD_LOW_L;
-
-