vp8: convert mc x86 assembly to use named arguments.

[ffmpeg] / libavcodec / ra144enc.c

diff --git a/libavcodec/ra144enc.c b/libavcodec/ra144enc.c
index 9e2cf36c2df539cb8522b6b028383fe188a85ea4..ff8316912f9815f0bc1d9a543b5852d677eb3df4 100644 (file)
--- a/libavcodec/ra144enc.c
+++ b/libavcodec/ra144enc.c
@@ -2,20 +2,20 @@
  * Real Audio 1.0 (14.4K) encoder
  * Copyright (c) 2010 Francesco Lavra <francescolavra@interfree.it>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -29,19 +29,24 @@
 
 #include "avcodec.h"
 #include "put_bits.h"
-#include "lpc.h"
 #include "celp_filters.h"
 #include "ra144.h"
 
 
+static av_cold int ra144_encode_close(AVCodecContext *avctx)
+{
+    RA144Context *ractx = avctx->priv_data;
+    ff_lpc_end(&ractx->lpc_ctx);
+    av_freep(&avctx->coded_frame);
+    return 0;
+}
+
+
 static av_cold int ra144_encode_init(AVCodecContext * avctx)
 {
     RA144Context *ractx;
+    int ret;
 
-    if (avctx->sample_fmt != SAMPLE_FMT_S16) {
-        av_log(avctx, AV_LOG_ERROR, "invalid sample format\n");
-        return -1;
-    }
     if (avctx->channels != 1) {
         av_log(avctx, AV_LOG_ERROR, "invalid number of channels: %d\n",
                avctx->channels);
@@ -53,8 +58,21 @@ static av_cold int ra144_encode_init(AVCodecContext * avctx)
     ractx->lpc_coef[0] = ractx->lpc_tables[0];
     ractx->lpc_coef[1] = ractx->lpc_tables[1];
     ractx->avctx = avctx;
-    dsputil_init(&ractx->dsp, avctx);
+    ret = ff_lpc_init(&ractx->lpc_ctx, avctx->frame_size, LPC_ORDER,
+                      FF_LPC_TYPE_LEVINSON);
+    if (ret < 0)
+        goto error;
+
+    avctx->coded_frame = avcodec_alloc_frame();
+    if (!avctx->coded_frame) {
+        ret = AVERROR(ENOMEM);
+        goto error;
+    }
+
     return 0;
+error:
+    ra144_encode_close(avctx);
+    return ret;
 }
 
 
@@ -205,7 +223,7 @@ static int adaptive_cb_search(const int16_t *adapt_cb, float *work,
     ff_celp_lp_synthesis_filterf(work, coefs, exc, BLOCKSIZE, LPC_ORDER);
     for (i = 0; i < BLOCKSIZE; i++)
         data[i] -= best_gain * work[i];
-    return (best_vect - BLOCKSIZE / 2 + 1);
+    return best_vect - BLOCKSIZE / 2 + 1;
 }
 
 
@@ -423,6 +441,7 @@ static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,
     int16_t block_coefs[NBLOCKS][LPC_ORDER];
     int lpc_refl[LPC_ORDER];    /**< reflection coefficients of the frame */
     unsigned int refl_rms[NBLOCKS]; /**< RMS of the reflection coefficients */
+    const int16_t *samples = data;
     int energy = 0;
     int i, idx;
 
@@ -451,8 +470,8 @@ static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,
     energy = ff_energy_tab[quantize(ff_t_sqrt(energy >> 5) >> 10, ff_energy_tab,
                                     32)];
 
-    ff_lpc_calc_coefs(&ractx->dsp, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
-                      LPC_ORDER, 16, lpc_coefs, shift, AV_LPC_TYPE_LEVINSON,
+    ff_lpc_calc_coefs(&ractx->lpc_ctx, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
+                      LPC_ORDER, 16, lpc_coefs, shift, FF_LPC_TYPE_LEVINSON,
                       0, ORDER_METHOD_EST, 12, 0);
     for (i = 0; i < LPC_ORDER; i++)
         block_coefs[NBLOCKS - 1][i] = -(lpc_coefs[LPC_ORDER - 1][i] <<
@@ -468,7 +487,10 @@ static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,
          * The filter is unstable: use the coefficients of the previous frame.
          */
         ff_int_to_int16(block_coefs[NBLOCKS - 1], ractx->lpc_coef[1]);
-        ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx);
+        if (ff_eval_refl(lpc_refl, block_coefs[NBLOCKS - 1], avctx)) {
+            /* the filter is still unstable. set reflection coeffs to zero. */
+            memset(lpc_refl, 0, sizeof(lpc_refl));
+        }
     }
     init_put_bits(&pb, frame, buf_size);
     for (i = 0; i < LPC_ORDER; i++) {
@@ -494,18 +516,20 @@ static int ra144_encode_frame(AVCodecContext *avctx, uint8_t *frame,
     ractx->lpc_refl_rms[1] = ractx->lpc_refl_rms[0];
     FFSWAP(unsigned int *, ractx->lpc_coef[0], ractx->lpc_coef[1]);
     for (i = 0; i < NBLOCKS * BLOCKSIZE; i++)
-        ractx->curr_block[i] = *((int16_t *)data + i) >> 2;
+        ractx->curr_block[i] = samples[i] >> 2;
     return FRAMESIZE;
 }
 
 
-AVCodec ra_144_encoder =
-{
-    "real_144",
-    CODEC_TYPE_AUDIO,
-    CODEC_ID_RA_144,
-    sizeof(RA144Context),
-    ra144_encode_init,
-    ra144_encode_frame,
-    .long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K) encoder"),
+AVCodec ff_ra_144_encoder = {
+    .name           = "real_144",
+    .type           = AVMEDIA_TYPE_AUDIO,
+    .id             = CODEC_ID_RA_144,
+    .priv_data_size = sizeof(RA144Context),
+    .init           = ra144_encode_init,
+    .encode         = ra144_encode_frame,
+    .close          = ra144_encode_close,
+    .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
+                                                     AV_SAMPLE_FMT_NONE },
+    .long_name      = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K)"),
 };