build: Integrate multilibrary examples into the build system

[ffmpeg] / libavformat / rtmppkt.h

diff --git a/libavformat/rtmppkt.h b/libavformat/rtmppkt.h
index cd5be5ad836730de80e7759746dbe6fd20572e35..7121d7e268c2a28d9a0575a6aadd1458fbb77432 100644 (file)
--- a/libavformat/rtmppkt.h
+++ b/libavformat/rtmppkt.h
@@ -1,6 +1,6 @@
 /*
  * RTMP packet utilities
- * Copyright (c) 2009 Kostya Shishkov
+ * Copyright (c) 2009 Konstantin Shishkov
  *
  * This file is part of Libav.
  *
@@ -22,6 +22,7 @@
 #ifndef AVFORMAT_RTMPPKT_H
 #define AVFORMAT_RTMPPKT_H
 
+#include "libavcodec/bytestream.h"
 #include "avformat.h"
 #include "url.h"
 
@@ -35,9 +36,9 @@
 enum RTMPChannel {
     RTMP_NETWORK_CHANNEL = 2,   ///< channel for network-related messages (bandwidth report, ping, etc)
     RTMP_SYSTEM_CHANNEL,        ///< channel for sending server control messages
-    RTMP_SOURCE_CHANNEL,        ///< channel for sending a/v to server
-    RTMP_VIDEO_CHANNEL = 8,     ///< channel for video data
     RTMP_AUDIO_CHANNEL,         ///< channel for audio data
+    RTMP_VIDEO_CHANNEL   = 6,   ///< channel for video data
+    RTMP_SOURCE_CHANNEL  = 8,   ///< channel for a/v invokes
 };
 
 /**
@@ -80,7 +81,9 @@ typedef struct RTMPPacket {
     uint32_t       ts_delta;   ///< timestamp increment to the previous one in milliseconds (latter only for media packets)
     uint32_t       extra;      ///< probably an additional channel ID used during streaming data
     uint8_t        *data;      ///< packet payload
-    int            data_size;  ///< packet payload size
+    int            size;       ///< packet payload size
+    int            offset;     ///< amount of data read so far
+    int            read;       ///< amount read, including headers
 } RTMPPacket;
 
 /**
@@ -111,10 +114,12 @@ void ff_rtmp_packet_destroy(RTMPPacket *pkt);
  * @param chunk_size current chunk size
  * @param prev_pkt   previously read packet headers for all channels
  *                   (may be needed for restoring incomplete packet header)
+ * @param nb_prev_pkt number of allocated elements in prev_pkt
  * @return number of bytes read on success, negative value otherwise
  */
 int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
-                        int chunk_size, RTMPPacket *prev_pkt);
+                        int chunk_size, RTMPPacket **prev_pkt,
+                        int *nb_prev_pkt);
 /**
  * Read internal RTMP packet sent by the server.
  *
@@ -123,11 +128,13 @@ int ff_rtmp_packet_read(URLContext *h, RTMPPacket *p,
  * @param chunk_size current chunk size
  * @param prev_pkt   previously read packet headers for all channels
  *                   (may be needed for restoring incomplete packet header)
+ * @param nb_prev_pkt number of allocated elements in prev_pkt
  * @param c          the first byte already read
  * @return number of bytes read on success, negative value otherwise
  */
 int ff_rtmp_packet_read_internal(URLContext *h, RTMPPacket *p, int chunk_size,
-                                 RTMPPacket *prev_pkt, uint8_t c);
+                                 RTMPPacket **prev_pkt, int *nb_prev_pkt,
+                                 uint8_t c);
 
 /**
  * Send RTMP packet to the server.
@@ -137,10 +144,12 @@ int ff_rtmp_packet_read_internal(URLContext *h, RTMPPacket *p, int chunk_size,
  * @param chunk_size current chunk size
  * @param prev_pkt   previously sent packet headers for all channels
  *                   (may be used for packet header compressing)
+ * @param nb_prev_pkt number of allocated elements in prev_pkt
  * @return number of bytes written on success, negative value otherwise
  */
 int ff_rtmp_packet_write(URLContext *h, RTMPPacket *p,
-                         int chunk_size, RTMPPacket *prev_pkt);
+                         int chunk_size, RTMPPacket **prev_pkt,
+                         int *nb_prev_pkt);
 
 /**
  * Print information and contents of RTMP packet.
@@ -150,6 +159,16 @@ int ff_rtmp_packet_write(URLContext *h, RTMPPacket *p,
  */
 void ff_rtmp_packet_dump(void *ctx, RTMPPacket *p);
 
+/**
+ * Enlarge the prev_pkt array to fit the given channel
+ *
+ * @param prev_pkt    array with previously sent packet headers
+ * @param nb_prev_pkt number of allocated elements in prev_pkt
+ * @param channel     the channel number that needs to be allocated
+ */
+int ff_rtmp_check_alloc_array(RTMPPacket **prev_pkt, int *nb_prev_pkt,
+                              int channel);
+
 /**
  * @name Functions used to work with the AMF format (which is also used in .flv)
  * @see amf_* funcs in libavformat/flvdec.c
@@ -202,6 +221,15 @@ 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.
  *
@@ -252,7 +280,7 @@ int ff_amf_read_number(GetByteContext *gbc, double *val);
 /**
  * Read AMF string value.
  *
- * Appends a trailing \0 to output string in order to
+ * Appends a trailing null byte to output string in order to
  * ease later parsing.
  *
  *@param[in,out] gbc     GetByteContext initialized with AMF-formatted data
@@ -272,6 +300,13 @@ int ff_amf_read_string(GetByteContext *gbc, uint8_t *str,
 */
 int ff_amf_read_null(GetByteContext *gbc);
 
+/**
+ * Match AMF string with a NULL-terminated string.
+ *
+ * @return 0 if the strings do not match.
+ */
+
+int ff_amf_match_string(const uint8_t *data, int size, const char *str);
 
 /** @} */ // AMF funcs