FFmpeg

824MB

Tree: c5714b51aa

Author	SHA1	Message	Date
Vittorio Giovara	41ed7ab45f	cosmetics: Fix spelling mistakes Signed-off-by: Diego Biurrun <diego@biurrun.de>	9 years ago
Anton Khirnov	9200514ad8	lavf: replace AVStream.codec with AVStream.codecpar Currently, AVStream contains an embedded AVCodecContext instance, which is used by demuxers to export stream parameters to the caller and by muxers to receive stream parameters from the caller. It is also used internally as the codec context that is passed to parsers. In addition, it is also widely used by the callers as the decoding (when demuxer) or encoding (when muxing) context, though this has been officially discouraged since Libav 11. There are multiple important problems with this approach: - the fields in AVCodecContext are in general one of * stream parameters * codec options * codec state However, it's not clear which ones are which. It is consequently unclear which fields are a demuxer allowed to set or a muxer allowed to read. This leads to erratic behaviour depending on whether decoding or encoding is being performed or not (and whether it uses the AVStream embedded codec context). - various synchronization issues arising from the fact that the same context is used by several different APIs (muxers/demuxers, parsers, bitstream filters and encoders/decoders) simultaneously, with there being no clear rules for who can modify what and the different processes being typically delayed with respect to each other. - avformat_find_stream_info() making it necessary to support opening and closing a single codec context multiple times, thus complicating the semantics of freeing various allocated objects in the codec context. Those problems are resolved by replacing the AVStream embedded codec context with a newly added AVCodecParameters instance, which stores only the stream parameters exported by the demuxers or read by the muxers.	11 years ago
Anton Khirnov	9279826008	id3v2enc: use a case-insensitive comparison for APIC picture type	11 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Anton Khirnov	ba445f5557	id3v2enc: add a function for writing attached pictures. Unused so far.	13 years ago
Anton Khirnov	24fe1a3b16	id3v2enc: fix writing frame sizes for ID3v2.3 Frame sizes in ID3v2.3 are not synchsafe, they are simply 32be numbers. In practice this bug is not noticeable unless the frame size takes more than 7 bits (which is almost never for text frames).	13 years ago
Anton Khirnov	411225aabc	id3v2enc: split ff_id3v2_write(). This will allow writing the tag in several steps, needed for writing attached pictures.	13 years ago
Anton Khirnov	c199817748	id3v2enc: make id3v2_put_size take only an AVIOContext. It has no need of full AVFormatContext.	13 years ago
Michael Karcher	16ad77b357	Move id3v2 tag writing to a separate file. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago

9 Commits (c5714b51aad41fef56dddac1d542e7fc6b984627)