mp3dec: read the initial/trailing padding from the LAME tag

[ffmpeg] / libavformat / oggdec.h

diff --git a/libavformat/oggdec.h b/libavformat/oggdec.h
index 1a73fe0bcbbd7be61a4c17fdf121a43572018491..807ac4a3164f4f11b2a525f464a14f5d397d9515 100644 (file)
--- a/libavformat/oggdec.h
+++ b/libavformat/oggdec.h
@@ -26,14 +26,36 @@
 #define AVFORMAT_OGGDEC_H
 
 #include "avformat.h"
+#include "metadata.h"
 
 struct ogg_codec {
     const int8_t *magic;
     uint8_t magicsize;
     const int8_t *name;
+    /**
+     * Attempt to process a packet as a header
+     * @return 1 if the packet was a valid header,
+     *         0 if the packet was not a header (was a data packet)
+     *         -1 if an error occurred or for unsupported stream
+     */
     int (*header)(AVFormatContext *, int);
     int (*packet)(AVFormatContext *, int);
-    uint64_t (*gptopts)(AVFormatContext *, int, uint64_t);
+    /**
+     * Translate a granule into a timestamp.
+     * Will set dts if non-null and known.
+     * @return pts
+     */
+    uint64_t (*gptopts)(AVFormatContext *, int, uint64_t, int64_t *dts);
+    /**
+     * 1 if granule is the start time of the associated packet.
+     * 0 if granule is the end time of the associated packet.
+     */
+    int granule_is_start;
+    /**
+     * Number of expected headers
+     */
+    int nb_header;
+    void (*cleanup)(AVFormatContext *s, int idx);
 };
 
 struct ogg_stream {
@@ -43,14 +65,23 @@ struct ogg_stream {
     unsigned int pstart;
     unsigned int psize;
     unsigned int pflags;
+    unsigned int pduration;
     uint32_t serial;
-    uint32_t seq;
-    uint64_t granule, lastgp;
+    uint64_t granule;
+    uint64_t start_granule;
+    int64_t lastpts;
+    int64_t lastdts;
+    int64_t sync_pos;   ///< file offset of the first page needed to reconstruct the current packet
+    int64_t page_pos;   ///< file offset of the current page
     int flags;
-    struct ogg_codec *codec;
+    const struct ogg_codec *codec;
     int header;
     int nsegs, segp;
     uint8_t segments[255];
+    int incomplete; ///< whether we're expecting a continuation in the next page
+    int page_end;   ///< current packet is the last one completed in the page
+    int keyframe_seek;
+    int nb_header; ///< set to the number of parsed headers
     void *private;
 };
 
@@ -67,7 +98,6 @@ struct ogg {
     int nstreams;
     int headers;
     int curidx;
-    uint64_t size;
     struct ogg_state *state;
 };
 
@@ -75,16 +105,58 @@ struct ogg {
 #define OGG_FLAG_BOS  2
 #define OGG_FLAG_EOS  4
 
+#define OGG_NOGRANULE_VALUE -1ull
+
+extern const struct ogg_codec ff_celt_codec;
+extern const struct ogg_codec ff_dirac_codec;
 extern const struct ogg_codec ff_flac_codec;
 extern const struct ogg_codec ff_ogm_audio_codec;
 extern const struct ogg_codec ff_ogm_old_codec;
 extern const struct ogg_codec ff_ogm_text_codec;
 extern const struct ogg_codec ff_ogm_video_codec;
+extern const struct ogg_codec ff_old_dirac_codec;
 extern const struct ogg_codec ff_old_flac_codec;
+extern const struct ogg_codec ff_opus_codec;
+extern const struct ogg_codec ff_skeleton_codec;
 extern const struct ogg_codec ff_speex_codec;
 extern const struct ogg_codec ff_theora_codec;
 extern const struct ogg_codec ff_vorbis_codec;
+extern const struct ogg_codec ff_vp8_codec;
+
+int ff_vorbis_comment(AVFormatContext *ms, AVDictionary **m,
+                      const uint8_t *buf, int size, int parse_picture);
+
+int ff_vorbis_stream_comment(AVFormatContext *as, AVStream *st,
+                             const uint8_t *buf, int size);
+
+static inline int
+ogg_find_stream (struct ogg * ogg, int serial)
+{
+    int i;
+
+    for (i = 0; i < ogg->nstreams; i++)
+        if (ogg->streams[i].serial == serial)
+            return i;
+
+    return -1;
+}
+
+static inline uint64_t
+ogg_gptopts (AVFormatContext * s, int i, uint64_t gp, int64_t *dts)
+{
+    struct ogg *ogg = s->priv_data;
+    struct ogg_stream *os = ogg->streams + i;
+    uint64_t pts = AV_NOPTS_VALUE;
+
+    if(os->codec && os->codec->gptopts){
+        pts = os->codec->gptopts(s, i, gp, dts);
+    } else {
+        pts = gp;
+        if (dts)
+            *dts = pts;
+    }
 
-extern int vorbis_comment(AVFormatContext *ms, uint8_t *buf, int size);
+    return pts;
+}
 
 #endif /* AVFORMAT_OGGDEC_H */