X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fpcm.c;h=96a68f7fe813ed2fc09999be24aed3ec0934fecc;hb=1ab3ae6fd5b1866aa42cfc0c5d79700adb7281d8;hp=4ce0b9487bb38803dca330d3128de973968ae23a;hpb=5de19160a3c0dedb3cefd00e863a8d8f74ca2ad0;p=ffmpeg

diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c
index 4ce0b9487bb..96a68f7fe81 100644
--- a/libavcodec/pcm.c
+++ b/libavcodec/pcm.c
@@ -491,14 +491,6 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
             bytestream_get_buffer(&src, samples, n * sample_size);
         }
         break;
-    case AV_CODEC_ID_PCM_ZORK:
-        for (; n > 0; n--) {
-            int v = *src++;
-            if (v < 128)
-                v = 128 - v;
-            *samples++ = v;
-        }
-        break;
     case AV_CODEC_ID_PCM_ALAW:
     case AV_CODEC_ID_PCM_MULAW:
     case AV_CODEC_ID_PCM_VIDC:
@@ -515,13 +507,13 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
             dst_int32_t = (int32_t *)frame->extended_data[c];
             for (i = 0; i < n; i++) {
                 // extract low 20 bits and expand to 32 bits
-                *dst_int32_t++ =  (src[2]         << 28) |
+                *dst_int32_t++ =  ((uint32_t)src[2]<<28) |
                                   (src[1]         << 20) |
                                   (src[0]         << 12) |
                                  ((src[2] & 0x0F) <<  8) |
                                    src[1];
                 // extract high 20 bits and expand to 32 bits
-                *dst_int32_t++ =  (src[4]         << 24) |
+                *dst_int32_t++ =  ((uint32_t)src[4]<<24) |
                                   (src[3]         << 16) |
                                  ((src[2] & 0xF0) <<  8) |
                                   (src[4]         <<  4) |
@@ -626,7 +618,6 @@ PCM_CODEC  (PCM_U24BE,        AV_SAMPLE_FMT_S32, pcm_u24be,        "PCM unsigned
 PCM_CODEC  (PCM_U24LE,        AV_SAMPLE_FMT_S32, pcm_u24le,        "PCM unsigned 24-bit little-endian");
 PCM_CODEC  (PCM_U32BE,        AV_SAMPLE_FMT_S32, pcm_u32be,        "PCM unsigned 32-bit big-endian");
 PCM_CODEC  (PCM_U32LE,        AV_SAMPLE_FMT_S32, pcm_u32le,        "PCM unsigned 32-bit little-endian");
-PCM_DECODER(PCM_ZORK,         AV_SAMPLE_FMT_U8,  pcm_zork,         "PCM Zork");
 PCM_CODEC  (PCM_S64BE,        AV_SAMPLE_FMT_S64, pcm_s64be,        "PCM signed 64-bit big-endian");
 PCM_CODEC  (PCM_S64LE,        AV_SAMPLE_FMT_S64, pcm_s64le,        "PCM signed 64-bit little-endian");
 PCM_CODEC  (PCM_VIDC,         AV_SAMPLE_FMT_S16, pcm_vidc,         "PCM Archimedes VIDC");