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23 Commits

Author SHA1 Message Date
Paul B Mahol 5afecff1ef avformat/adxdec: set bit_rate, fixes duration calculation 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-05-15 19:05:19 +02:00
Paul B Mahol 323b8c95e4 avformat: add AVFormatContext to ff_get_extradata() 
Needed for av_log() inside that function.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2016-04-14 18:21:08 +02:00
Derek Buitenhuis 6f69f7a8bf Merge commit '9200514ad8717c63f82101dc394f4378854325bf' 
* commit '9200514ad8717c63f82101dc394f4378854325bf':
  lavf: replace AVStream.codec with AVStream.codecpar

This has been a HUGE effort from:
    - Derek Buitenhuis <derek.buitenhuis@gmail.com>
    - Hendrik Leppkes <h.leppkes@gmail.com>
    - wm4 <nfxjfg@googlemail.com>
    - Clément Bœsch <clement@stupeflix.com>
    - James Almer <jamrial@gmail.com>
    - Michael Niedermayer <michael@niedermayer.cc>
    - Rostislav Pehlivanov <atomnuker@gmail.com>

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
 2016-04-10 20:59:55 +01:00
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.
 2016-02-23 17:01:58 +01:00
Carl Eugen Hoyos 9ca5b27240 lavf/adxdec: Add Autodetection. 2016-02-01 10:51:46 +01:00
Hendrik Leppkes 7f5af80ba4 Merge commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457' 
* commit 'ce70f28a1732c74a9cd7fec2d56178750bd6e457':
  avpacket: Replace av_free_packet with av_packet_unref

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
 2015-10-27 14:28:56 +01:00
Luca Barbato ce70f28a17 avpacket: Replace av_free_packet with av_packet_unref 
`av_packet_unref` matches the AVFrame ref-counted API and can be used as
a drop in replacement.

Deprecate `av_free_packet`.
 2015-10-26 18:00:55 +01:00
Vittorio Giovara 059a934806 lavc: Consistently prefix input buffer defines 
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:59 +01:00
Andreas Cadhalpun c73c3c34fe avformat/adxdec: set avctx->channels in adx_read_header 
It is used in adx_read_packet, which currently depends on the
decoder/parser setting this value between reading the file header and
demuxing the first packet.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
 2015-03-05 15:57:48 +01:00
Andreas Cadhalpun 7faa40af98 avformat/adxdec: check avctx->channels for invalid values 
This avoids a null pointer dereference of pkt->data.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-26 12:25:29 +01:00
Andreas Cadhalpun 64ea4a0598 avformat/adxdec: set avctx->channels in adx_read_header 
It is used in adx_read_packet, which currently depends on the decoder/parser setting this value between reading the file header and demuxing the first packet.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-26 12:25:29 +01:00
Michael Niedermayer e932ae5940 Merge commit 'd5cf5afabbf43f00283e70b12afbe1da030d85b6' 
* commit 'd5cf5afabbf43f00283e70b12afbe1da030d85b6':
  adxdec: get rid of an avpriv function

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-09 22:38:13 +02:00
Anton Khirnov d5cf5afabb adxdec: get rid of an avpriv function 
The only thing the demuxer needs is the sample rate to set the timebase,
which can be simply read with AV_RB32.
 2014-07-09 13:37:18 +00:00
Michael Niedermayer 482b2042cd avformat/adxdec: use ff_get_extradata() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-25 17:14:32 +01:00
Paul B Mahol a807c68253 avformat: use ff_alloc_extradata() 
Signed-off-by: Paul B Mahol <onemda@gmail.com>
 2013-10-13 20:13:38 +00:00
Thilo Borgmann d814a839ac Reinstate proper FFmpeg license for all files. 2013-08-30 15:47:38 +00:00
Anton Khirnov 36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Anton Khirnov f7fe41a04f lavf: rename AVInputFormat.value to raw_codec_id. 
It's only used by raw demuxers for storing the codec id.
 2012-01-31 07:50:31 +01:00
Anton Khirnov 6e9651d106 lavf: remove AVFormatParameters from AVFormatContext.read_header signature 2012-01-27 10:51:57 +01:00
Justin Ruggles 99baf2c7d0 adx: add AVFMT_GENERIC_INDEX to demuxer flags. 
fixes seeking
 2012-01-03 18:47:41 -05:00
Anton Khirnov c3f9ebf743 lavf: make av_set_pts_info private. 
It's supposed to be called only from (de)muxers.
 2011-11-30 20:34:45 +01:00
Justin Ruggles 9d2dd356c2 adx: rename ff_adx_decode_header() to avpriv_adx_decode_header() 
It is used by the ADX decoder, and therefore needs to be exported in order to
work with shared libs.
 2011-11-26 17:00:00 -05:00
Justin Ruggles a17c3c7d15 avformat: add CRI ADX format demuxer 2011-11-26 16:25:07 -05:00