Make url_split() strip url options (?opt=var) from the returned hostname or

[ffmpeg] / libavformat / crc.c

diff --git a/libavformat/crc.c b/libavformat/crc.c
index 553ab537cb1755fc7a0ff8c812620db07526555a..bdbe8bcffbe975893aeb7fb5364d46305b139b96 100644 (file)
--- a/libavformat/crc.c
+++ b/libavformat/crc.c
@@ -1,64 +1,29 @@
-/* 
+/*
  * CRC decoder (for codec/format testing)
  * Copyright (c) 2002 Fabrice Bellard.
  *
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 #include "avformat.h"
+#include "adler32.h"
 
-/* adler32.c -- compute the Adler-32 checksum of a data stream
- * Copyright (C) 1995 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- */
-
-#define BASE 65521L /* largest prime smaller than 65536 */
-#define NMAX 5552
-/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */
-
-#define DO1(buf)  {s1 += *buf++; s2 += s1;}
-#define DO2(buf)  DO1(buf); DO1(buf);
-#define DO4(buf)  DO2(buf); DO2(buf);
-#define DO8(buf)  DO4(buf); DO4(buf);
-#define DO16(buf) DO8(buf); DO8(buf);
-
-static UINT32 adler32(UINT32 adler, UINT8 *buf, unsigned int len)
-{
-    unsigned long s1 = adler & 0xffff;
-    unsigned long s2 = (adler >> 16) & 0xffff;
-    int k;
-
-    if (buf == NULL) return 1L;
-
-    while (len > 0) {
-        k = len < NMAX ? len : NMAX;
-        len -= k;
-        while (k >= 16) {
-            DO16(buf);
-            k -= 16;
-        }
-        if (k != 0) do {
-            DO1(buf);
-        } while (--k);
-        s1 %= BASE;
-        s2 %= BASE;
-    }
-    return (s2 << 16) | s1;
-}
-
+#ifdef CONFIG_CRC_MUXER
 typedef struct CRCState {
-    UINT32 crcval;
+    uint32_t crcval;
 } CRCState;
 
 static int crc_write_header(struct AVFormatContext *s)
@@ -66,17 +31,15 @@ static int crc_write_header(struct AVFormatContext *s)
     CRCState *crc = s->priv_data;
 
     /* init CRC */
-    crc->crcval = adler32(0, NULL, 0);
+    crc->crcval = 1;
 
     return 0;
 }
 
-static int crc_write_packet(struct AVFormatContext *s, 
-                            int stream_index,
-                            unsigned char *buf, int size, int force_pts)
+static int crc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
 {
     CRCState *crc = s->priv_data;
-    crc->crcval = adler32(crc->crcval, buf, size);
+    crc->crcval = av_adler32_update(crc->crcval, pkt->data, pkt->size);
     return 0;
 }
 
@@ -85,13 +48,28 @@ static int crc_write_trailer(struct AVFormatContext *s)
     CRCState *crc = s->priv_data;
     char buf[64];
 
-    snprintf(buf, sizeof(buf), "CRC=%08x\n", crc->crcval);
+    snprintf(buf, sizeof(buf), "CRC=0x%08x\n", crc->crcval);
+    put_buffer(&s->pb, buf, strlen(buf));
+    put_flush_packet(&s->pb);
+    return 0;
+}
+#endif
+
+#ifdef CONFIG_FRAMECRC_MUXER
+static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
+{
+    uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
+    char buf[256];
+
+    snprintf(buf, sizeof(buf), "%d, %"PRId64", %d, 0x%08x\n", pkt->stream_index, pkt->dts, pkt->size, crc);
     put_buffer(&s->pb, buf, strlen(buf));
     put_flush_packet(&s->pb);
     return 0;
 }
+#endif
 
-static AVOutputFormat crc_format = {
+#ifdef CONFIG_CRC_MUXER
+AVOutputFormat crc_muxer = {
     "crc",
     "crc testing format",
     NULL,
@@ -103,9 +81,18 @@ static AVOutputFormat crc_format = {
     crc_write_packet,
     crc_write_trailer,
 };
-
-int crc_init(void)
-{
-    av_register_output_format(&crc_format);
-    return 0;
-}
+#endif
+#ifdef CONFIG_FRAMECRC_MUXER
+AVOutputFormat framecrc_muxer = {
+    "framecrc",
+    "framecrc testing format",
+    NULL,
+    "",
+    0,
+    CODEC_ID_PCM_S16LE,
+    CODEC_ID_RAWVIDEO,
+    NULL,
+    framecrc_write_packet,
+    NULL,
+};
+#endif