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rtmp: Add a function for writing AMF strings based on two substrings

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This avoids having to concatenate them into one buffer before writing
them as AMF.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-12-30 22:38:23 +02:00
parent c76daa89ab
commit 33f28a3be3
2 changed files with 22 additions and 0 deletions
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13
libavformat/rtmppkt.c
View File

@ -47,6 +47,19 @@ void ff_amf_write_string(uint8_t **dst, const char *str)
bytestream_put_buffer(dst, str, strlen(str));
}
void ff_amf_write_string2(uint8_t **dst, const char *str1, const char *str2)
{
int len1 = 0, len2 = 0;
if (str1)
len1 = strlen(str1);
if (str2)
len2 = strlen(str2);
bytestream_put_byte(dst, AMF_DATA_TYPE_STRING);
bytestream_put_be16(dst, len1 + len2);
bytestream_put_buffer(dst, str1, len1);
bytestream_put_buffer(dst, str2, len2);
}
void ff_amf_write_null(uint8_t **dst)
{
bytestream_put_byte(dst, AMF_DATA_TYPE_NULL);

9
libavformat/rtmppkt.h
View File

@ -203,6 +203,15 @@ void ff_amf_write_number(uint8_t **dst, double num);
*/
void ff_amf_write_string(uint8_t **dst, const char *str);
/**
* Write a string consisting of two parts in AMF format to a buffer.
*
* @param dst pointer to the input buffer (will be modified)
* @param str1 first string to write, may be null
* @param str2 second string to write, may be null
*/
void ff_amf_write_string2(uint8_t **dst, const char *str1, const char *str2);
/**
* Write AMF NULL value to buffer.
*