/*
* Copyright (c) 2000, 2001 Fabrice Bellard
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define PACKET_SIZE 3200
-typedef struct {
+typedef struct ASFStream {
int num;
unsigned char seq;
/* use for reading */
int64_t packet_pos;
+ uint16_t stream_language_index;
+
+ int palette_changed;
+ uint32_t palette[256];
} ASFStream;
-typedef uint8_t GUID[16];
+typedef uint8_t ff_asf_guid[16];
-typedef struct {
- GUID guid; ///< generated by client computer
+typedef struct ASFMainHeader {
+ ff_asf_guid guid; ///< generated by client computer
uint64_t file_size; /**< in bytes
* invalid if broadcasting */
uint64_t create_time; /**< time of creation, in 100-nanosecond units since 1.1.1601
* invalid if broadcasting */
uint32_t max_pktsize; /**< shall be the same as for min_pktsize
* invalid if broadcasting */
- uint32_t max_bitrate; /**< bandwith of stream in bps
+ uint32_t max_bitrate; /**< bandwidth of stream in bps
* should be the sum of bitrates of the
* individual media streams */
} ASFMainHeader;
-typedef struct {
+typedef struct ASFIndex {
uint32_t packet_number;
uint16_t packet_count;
} ASFIndex;
-
-typedef struct {
- uint32_t seqno;
- unsigned int packet_size;
- int is_streamed;
- int asfid2avid[128]; ///< conversion table from asf ID 2 AVStream ID
- ASFStream streams[128]; ///< it's max number and it's not that big
- uint32_t stream_bitrates[128]; ///< max number of streams, bitrate for each (for streaming)
- /* non streamed additonnal info */
- uint64_t nb_packets; ///< how many packets are there in the file, invalid if broadcasting
- int64_t duration; ///< in 100ns units
- /* packet filling */
- unsigned char multi_payloads_present;
- int packet_size_left;
- int packet_timestamp_start;
- int packet_timestamp_end;
- unsigned int packet_nb_payloads;
- int packet_nb_frames;
- uint8_t packet_buf[PACKET_SIZE];
- ByteIOContext pb;
- /* only for reading */
- uint64_t data_offset; ///< beginning of the first data packet
- uint64_t data_object_offset; ///< data object offset (excl. GUID & size)
- uint64_t data_object_size; ///< size of the data object
- int index_read;
-
- ASFMainHeader hdr;
-
- int packet_flags;
- int packet_property;
- int packet_timestamp;
- int packet_segsizetype;
- int packet_segments;
- int packet_seq;
- int packet_replic_size;
- int packet_key_frame;
- int packet_padsize;
- unsigned int packet_frag_offset;
- unsigned int packet_frag_size;
- int64_t packet_frag_timestamp;
- int packet_multi_size;
- int packet_obj_size;
- int packet_time_delta;
- int packet_time_start;
- int64_t packet_pos;
-
- int stream_index;
-
-
- int64_t last_indexed_pts;
- ASFIndex* index_ptr;
- uint32_t nb_index_count;
- uint32_t nb_index_memory_alloc;
- uint16_t maximum_packet;
-
- ASFStream* asf_st; ///< currently decoded stream
-} ASFContext;
-
-extern const GUID ff_asf_header;
-extern const GUID ff_asf_file_header;
-extern const GUID ff_asf_stream_header;
-extern const GUID ff_asf_ext_stream_header;
-extern const GUID ff_asf_audio_stream;
-extern const GUID ff_asf_audio_conceal_none;
-extern const GUID ff_asf_audio_conceal_spread;
-extern const GUID ff_asf_video_stream;
-extern const GUID ff_asf_video_conceal_none;
-extern const GUID ff_asf_command_stream;
-extern const GUID ff_asf_comment_header;
-extern const GUID ff_asf_codec_comment_header;
-extern const GUID ff_asf_codec_comment1_header;
-extern const GUID ff_asf_data_header;
-extern const GUID ff_asf_head1_guid;
-extern const GUID ff_asf_head2_guid;
-extern const GUID ff_asf_extended_content_header;
-extern const GUID ff_asf_simple_index_header;
-extern const GUID ff_asf_ext_stream_embed_stream_header;
-extern const GUID ff_asf_ext_stream_audio_stream;
-extern const GUID ff_asf_metadata_header;
-extern const GUID ff_asf_my_guid;
+extern const ff_asf_guid ff_asf_header;
+extern const ff_asf_guid ff_asf_file_header;
+extern const ff_asf_guid ff_asf_stream_header;
+extern const ff_asf_guid ff_asf_ext_stream_header;
+extern const ff_asf_guid ff_asf_audio_stream;
+extern const ff_asf_guid ff_asf_audio_conceal_none;
+extern const ff_asf_guid ff_asf_audio_conceal_spread;
+extern const ff_asf_guid ff_asf_video_stream;
+extern const ff_asf_guid ff_asf_jfif_media;
+extern const ff_asf_guid ff_asf_video_conceal_none;
+extern const ff_asf_guid ff_asf_command_stream;
+extern const ff_asf_guid ff_asf_comment_header;
+extern const ff_asf_guid ff_asf_codec_comment_header;
+extern const ff_asf_guid ff_asf_codec_comment1_header;
+extern const ff_asf_guid ff_asf_data_header;
+extern const ff_asf_guid ff_asf_head1_guid;
+extern const ff_asf_guid ff_asf_head2_guid;
+extern const ff_asf_guid ff_asf_extended_content_header;
+extern const ff_asf_guid ff_asf_simple_index_header;
+extern const ff_asf_guid ff_asf_ext_stream_embed_stream_header;
+extern const ff_asf_guid ff_asf_ext_stream_audio_stream;
+extern const ff_asf_guid ff_asf_metadata_header;
+extern const ff_asf_guid ff_asf_marker_header;
+extern const ff_asf_guid ff_asf_my_guid;
+extern const ff_asf_guid ff_asf_language_guid;
+extern const ff_asf_guid ff_asf_content_encryption;
+extern const ff_asf_guid ff_asf_ext_content_encryption;
+extern const ff_asf_guid ff_asf_digital_signature;
extern const AVMetadataConv ff_asf_metadata_conv[];
#define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000
-extern AVInputFormat asf_demuxer;
+extern AVInputFormat ff_asf_demuxer;
-/**
- * Load a single ASF packet into the demuxer.
- * @param s demux context
- * @param pb context to read data from
- * @returns 0 on success, <0 on error
- */
-int ff_asf_get_packet(AVFormatContext *s, ByteIOContext *pb);
-
-/**
- * Parse data from individual ASF packets (which were previously loaded
- * with asf_get_packet()).
- * @param s demux context
- * @param pb context to read data from
- * @param pkt pointer to store packet data into
- * @returns 0 if data was stored in pkt, <0 on error or 1 if more ASF
- * packets need to be loaded (through asf_get_packet())
- */
-int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt);
+static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
+{
+ return memcmp(g1, g2, sizeof(ff_asf_guid));
+}
+
+void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
#endif /* AVFORMAT_ASF_H */
projects / ffmpeg / blobdiff