Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: fft: fix imdct_half() for AVX
  rtmppkt: Add missing libavcodec/bytestream.h include.
  rtmp: add functions for reading AMF values
  vc1dec: remove useless #include simple_idct.h
  dct-test: always link with aandcttab.o
  vp8: pack struct VP8ThreadData more efficiently
  x86: remove libmpeg2 mmx(ext) idct functions
  eamad: Use dsputils instead of a custom bswap16_buf
  Canopus Lossless decoder

Conflicts:
	Changelog
	LICENSE
	libavcodec/avcodec.h
	libavcodec/cllc.c
	libavcodec/eamad.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

2 files changed, 88 insertions, 0 deletions

diff --git a/libavformat/rtmppkt.c b/libavformat/rtmppkt.c
index 4b5f188074..b607d5b5e2 100644
--- a/libavformat/rtmppkt.c
+++ b/libavformat/rtmppkt.c
@@ -71,6 +71,51 @@ void ff_amf_write_object_end(uint8_t **dst)
     bytestream_put_be24(dst, AMF_DATA_TYPE_OBJECT_END);
 }
 
+int ff_amf_read_bool(GetByteContext *bc, int *val)
+{
+    if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_BOOL)
+        return AVERROR_INVALIDDATA;
+    *val = bytestream2_get_byte(bc);
+    return 0;
+}
+
+int ff_amf_read_number(GetByteContext *bc, double *val)
+{
+    uint64_t read;
+    if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_NUMBER)
+        return AVERROR_INVALIDDATA;
+    read = bytestream2_get_be64(bc);
+    *val = av_int2double(read);
+    return 0;
+}
+
+int ff_amf_read_string(GetByteContext *bc, uint8_t *str,
+                       int strsize, int *length)
+{
+    int stringlen = 0;
+    int readsize;
+    if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_STRING)
+        return AVERROR_INVALIDDATA;
+    stringlen = bytestream2_get_be16(bc);
+    if (stringlen + 1 > strsize)
+        return AVERROR(EINVAL);
+    readsize = bytestream2_get_buffer(bc, str, stringlen);
+    if (readsize != stringlen) {
+        av_log(NULL, AV_LOG_WARNING,
+               "Unable to read as many bytes as AMF string signaled\n");
+    }
+    str[readsize] = '\0';
+    *length = FFMIN(stringlen, readsize);
+    return 0;
+}
+
+int ff_amf_read_null(GetByteContext *bc)
+{
+    if (bytestream2_get_byte(bc) != AMF_DATA_TYPE_NULL)
+        return AVERROR_INVALIDDATA;
+    return 0;
+}
+
 int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
                         int chunk_size, RTMPPacket *prev_pkt)
 {
diff --git a/libavformat/rtmppkt.h b/libavformat/rtmppkt.h
index 7291397345..7ed31133c0 100644
--- a/libavformat/rtmppkt.h
+++ b/libavformat/rtmppkt.h
@@ -22,6 +22,7 @@
 #ifndef AVFORMAT_RTMPPKT_H
 #define AVFORMAT_RTMPPKT_H
 
+#include "libavcodec/bytestream.h"
 #include "avformat.h"
 #include "url.h"
 
@@ -231,6 +232,48 @@ void ff_amf_write_field_name(uint8_t **dst, const char *str);
  */
 void ff_amf_write_object_end(uint8_t **dst);
 
+/**
+ * Read AMF boolean value.
+ *
+ *@param[in,out] gbc GetByteContext initialized with AMF-formatted data
+ *@param[out]    val 0 or 1
+ *@return 0 on success or an AVERROR code on failure
+*/
+int ff_amf_read_bool(GetByteContext *gbc, int *val);
+
+/**
+ * Read AMF number value.
+ *
+ *@param[in,out] gbc GetByteContext initialized with AMF-formatted data
+ *@param[out]    val read value
+ *@return 0 on success or an AVERROR code on failure
+*/
+int ff_amf_read_number(GetByteContext *gbc, double *val);
+
+/**
+ * Read AMF string value.
+ *
+ * Appends a trailing \0 to output string in order to
+ * ease later parsing.
+ *
+ *@param[in,out] gbc     GetByteContext initialized with AMF-formatted data
+ *@param[out]    str     read string
+ *@param[in]     strsize buffer size available to store the read string
+ *@param[out]    length  read string length
+ *@return 0 on success or an AVERROR code on failure
+*/
+int ff_amf_read_string(GetByteContext *gbc, uint8_t *str,
+                       int strsize, int *length);
+
+/**
+ * Read AMF NULL value.
+ *
+ *@param[in,out] gbc GetByteContext initialized with AMF-formatted data
+ *@return 0 on success or an AVERROR code on failure
+*/
+int ff_amf_read_null(GetByteContext *gbc);
+
+
 /** @} */ // AMF funcs
 
 #endif /* AVFORMAT_RTMPPKT_H */