crypto: consistently use size_t as type for length parameters

[ffmpeg] / libavformat / internal.h

diff --git a/libavformat/internal.h b/libavformat/internal.h
index 9921ce11e05643546e1ddcb4a0766b1ac9428778..52cd29b9b79b5f2c2be9db6ede6950afada49561 100644 (file)
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -23,6 +23,7 @@
 
 #include <stdint.h>
 #include "avformat.h"
+#include "os_support.h"
 
 #define MAX_URL_SIZE 4096
 
@@ -48,6 +49,84 @@ struct AVFormatInternal {
      * Muxing only.
      */
     int nb_interleaved_streams;
+
+    /**
+     * This buffer is only needed when packets were already buffered but
+     * not decoded, for example to get the codec parameters in MPEG
+     * streams.
+     */
+    struct AVPacketList *packet_buffer;
+    struct AVPacketList *packet_buffer_end;
+
+    /* av_seek_frame() support */
+    int64_t data_offset; /**< offset of the first packet */
+
+    /**
+     * Raw packets from the demuxer, prior to parsing and decoding.
+     * This buffer is used for buffering packets until the codec can
+     * be identified, as parsing cannot be done without knowing the
+     * codec.
+     */
+    struct AVPacketList *raw_packet_buffer;
+    struct AVPacketList *raw_packet_buffer_end;
+    /**
+     * Packets split by the parser get queued here.
+     */
+    struct AVPacketList *parse_queue;
+    struct AVPacketList *parse_queue_end;
+    /**
+     * Remaining size available for raw_packet_buffer, in bytes.
+     */
+#define RAW_PACKET_BUFFER_SIZE 2500000
+    int raw_packet_buffer_remaining_size;
+
+    /**
+     * Offset to remap timestamps to be non-negative.
+     * Expressed in timebase units.
+     */
+    int64_t offset;
+
+    /**
+     * Timebase for the timestamp offset.
+     */
+    AVRational offset_timebase;
+
+#if FF_API_COMPUTE_PKT_FIELDS2
+    int missing_ts_warning;
+#endif
+};
+
+struct AVStreamInternal {
+    /**
+     * Set to 1 if the codec allows reordering, so pts can be different
+     * from dts.
+     */
+    int reorder;
+    /**
+     * The codec context used by avformat_find_stream_info, the parser, etc.
+     */
+    AVCodecContext *avctx;
+    /**
+     * 1 if avctx has been initialized with the values from the codec parameters
+     */
+    int avctx_inited;
+
+    enum AVCodecID orig_codec_id;
+
+    /* the context for extracting extradata in find_stream_info()
+     * inited=1/bsf=NULL signals that extracting is not possible (codec not
+     * supported) */
+    struct {
+        AVBSFContext *bsf;
+        AVPacket     *pkt;
+        int inited;
+    } extract_extradata;
+
+#if FF_API_LAVF_AVCTX
+    // whether the deprecated stream codec context needs
+    // to be filled from the codec parameters
+    int need_codec_update;
+#endif
 };
 
 void ff_dynarray_add(intptr_t **tab_ptr, int *nb_ptr, intptr_t elem);
@@ -306,7 +385,7 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt);
  * Interleave a packet per dts in an output media file.
  *
  * Packets with pkt->destruct == av_destruct_packet will be freed inside this
- * function, so they cannot be used after it. Note that calling av_free_packet()
+ * function, so they cannot be used after it. Note that calling av_packet_unref()
  * on them is still safe.
  *
  * @param s media file handle
@@ -323,7 +402,7 @@ int ff_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
 /**
  * Return the frame duration in seconds. Return 0 if not available.
  */
-void ff_compute_frame_duration(int *pnum, int *pden, AVStream *st,
+void ff_compute_frame_duration(AVFormatContext *s, int *pnum, int *pden, AVStream *st,
                                AVCodecParserContext *pc, AVPacket *pkt);
 
 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id);
@@ -351,4 +430,35 @@ enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags);
  */
 int ff_generate_avci_extradata(AVStream *st);
 
+/**
+ * Wrap errno on rename() error.
+ *
+ * @param oldpath source path
+ * @param newpath destination path
+ * @return        0 or AVERROR on failure
+ */
+static inline int ff_rename(const char *oldpath, const char *newpath)
+{
+    if (rename(oldpath, newpath) == -1)
+        return AVERROR(errno);
+    return 0;
+}
+
+/**
+ * A wrapper around AVFormatContext.io_close that should be used
+ * instead of calling the pointer directly.
+ */
+void ff_format_io_close(AVFormatContext *s, AVIOContext **pb);
+
+/**
+ * Find the next packet in the interleaving queue for the given stream.
+ * The pkt parameter is filled in with the queued packet, including
+ * references to the data (which the caller is not allowed to keep or
+ * modify).
+ *
+ * @return 0 if a packet was found, a negative value if no packet was found
+ */
+int ff_interleaved_peek(AVFormatContext *s, int stream,
+                        AVPacket *pkt, int add_offset);
+
 #endif /* AVFORMAT_INTERNAL_H */