hevc: ppc: Add HEVC 4x4 IDCT for PowerPC

[ffmpeg] / libavcodec / gsmdec.c

diff --git a/libavcodec/gsmdec.c b/libavcodec/gsmdec.c
index 97b6fe8492a4d7e9af0999fb790a6eb3644bf7c9..d727cf9ccf36456586543f78ffe1a817138ddb52 100644 (file)
--- a/libavcodec/gsmdec.c
+++ b/libavcodec/gsmdec.c
@@ -24,43 +24,51 @@
  * GSM decoder
  */
 
+#include "libavutil/channel_layout.h"
+
 #include "avcodec.h"
-#include "get_bits.h"
+#include "bitstream.h"
+#include "internal.h"
 #include "msgsmdec.h"
 
 #include "gsmdec_template.c"
 
 static av_cold int gsm_init(AVCodecContext *avctx)
 {
-    GSMContext *s = avctx->priv_data;
-
-    avctx->channels = 1;
+    avctx->channels       = 1;
+    avctx->channel_layout = AV_CH_LAYOUT_MONO;
     if (!avctx->sample_rate)
         avctx->sample_rate = 8000;
-    avctx->sample_fmt = AV_SAMPLE_FMT_S16;
+    avctx->sample_fmt     = AV_SAMPLE_FMT_S16;
 
     switch (avctx->codec_id) {
-    case CODEC_ID_GSM:
+    case AV_CODEC_ID_GSM:
         avctx->frame_size  = GSM_FRAME_SIZE;
         avctx->block_align = GSM_BLOCK_SIZE;
         break;
-    case CODEC_ID_GSM_MS:
+    case AV_CODEC_ID_GSM_MS:
         avctx->frame_size  = 2 * GSM_FRAME_SIZE;
-        avctx->block_align = GSM_MS_BLOCK_SIZE;
+        if (!avctx->block_align)
+            avctx->block_align = GSM_MS_BLOCK_SIZE;
+        else
+            if (avctx->block_align < MSN_MIN_BLOCK_SIZE ||
+                avctx->block_align > GSM_MS_BLOCK_SIZE  ||
+                (avctx->block_align - MSN_MIN_BLOCK_SIZE) % 3) {
+                av_log(avctx, AV_LOG_ERROR, "Invalid block alignment %d\n",
+                       avctx->block_align);
+                return AVERROR_INVALIDDATA;
+            }
     }
 
-    avcodec_get_frame_defaults(&s->frame);
-    avctx->coded_frame = &s->frame;
-
     return 0;
 }
 
 static int gsm_decode_frame(AVCodecContext *avctx, void *data,
                             int *got_frame_ptr, AVPacket *avpkt)
 {
-    GSMContext *s = avctx->priv_data;
+    AVFrame *frame = data;
     int res;
-    GetBitContext gb;
+    BitstreamContext bc;
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     int16_t *samples;
@@ -71,30 +79,30 @@ static int gsm_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     /* get output buffer */
-    s->frame.nb_samples = avctx->frame_size;
-    if ((res = avctx->get_buffer(avctx, &s->frame)) < 0) {
+    frame->nb_samples = avctx->frame_size;
+    if ((res = ff_get_buffer(avctx, frame, 0)) < 0) {
         av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
         return res;
     }
-    samples = (int16_t *)s->frame.data[0];
+    samples = (int16_t *)frame->data[0];
 
     switch (avctx->codec_id) {
-    case CODEC_ID_GSM:
-        init_get_bits(&gb, buf, buf_size * 8);
-        if (get_bits(&gb, 4) != 0xd)
+    case AV_CODEC_ID_GSM:
+        bitstream_init(&bc, buf, buf_size * 8);
+        if (bitstream_read(&bc, 4) != 0xd)
             av_log(avctx, AV_LOG_WARNING, "Missing GSM magic!\n");
-        res = gsm_decode_block(avctx, samples, &gb);
+        res = gsm_decode_block(avctx, samples, &bc, GSM_13000);
         if (res < 0)
             return res;
         break;
-    case CODEC_ID_GSM_MS:
-        res = ff_msgsm_decode_block(avctx, samples, buf);
+    case AV_CODEC_ID_GSM_MS:
+        res = ff_msgsm_decode_block(avctx, samples, buf,
+                                    (GSM_MS_BLOCK_SIZE - avctx->block_align) / 3);
         if (res < 0)
             return res;
     }
 
-    *got_frame_ptr   = 1;
-    *(AVFrame *)data = s->frame;
+    *got_frame_ptr = 1;
 
     return avctx->block_align;
 }
@@ -107,24 +115,24 @@ static void gsm_flush(AVCodecContext *avctx)
 
 AVCodec ff_gsm_decoder = {
     .name           = "gsm",
+    .long_name      = NULL_IF_CONFIG_SMALL("GSM"),
     .type           = AVMEDIA_TYPE_AUDIO,
-    .id             = CODEC_ID_GSM,
+    .id             = AV_CODEC_ID_GSM,
     .priv_data_size = sizeof(GSMContext),
     .init           = gsm_init,
     .decode         = gsm_decode_frame,
     .flush          = gsm_flush,
-    .capabilities   = CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("GSM"),
+    .capabilities   = AV_CODEC_CAP_DR1,
 };
 
 AVCodec ff_gsm_ms_decoder = {
     .name           = "gsm_ms",
+    .long_name      = NULL_IF_CONFIG_SMALL("GSM Microsoft variant"),
     .type           = AVMEDIA_TYPE_AUDIO,
-    .id             = CODEC_ID_GSM_MS,
+    .id             = AV_CODEC_ID_GSM_MS,
     .priv_data_size = sizeof(GSMContext),
     .init           = gsm_init,
     .decode         = gsm_decode_frame,
     .flush          = gsm_flush,
-    .capabilities   = CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("GSM Microsoft variant"),
+    .capabilities   = AV_CODEC_CAP_DR1,
 };