[FFmpeg-devel] [PATCH 2/2] avcodec: remove fourcc values from AVCodecIDs

Paul B Mahol onemda at gmail.com
Mon Sep 7 10:50:05 CEST 2015


Dana 7. 9. 2015. 09:41 osoba "Hendrik Leppkes" <h.leppkes at gmail.com>
napisala je:
>
> On Mon, Sep 7, 2015 at 2:34 AM, James Almer <jamrial at gmail.com> wrote:
> > Based on patch by wm4.
> >
> > Signed-off-by: James Almer <jamrial at gmail.com>
> > ---
> >  libavcodec/avcodec.h | 122
+++++++++++++++++++++++++++------------------------
> >  1 file changed, 64 insertions(+), 58 deletions(-)
> >
> > diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
> > index 32235ab..070db50 100644
> > --- a/libavcodec/avcodec.h
> > +++ b/libavcodec/avcodec.h
> > @@ -93,8 +93,7 @@
> >   *
> >   * If you add a codec ID to this list, add it so that
> >   * 1. no value of a existing codec ID changes (that would break ABI),
> > - * 2. Give it a value which when taken as ASCII is recognized uniquely
by a human as this specific codec.
> > - *    This ensures that 2 forks can independently add AVCodecIDs
without producing conflicts.
> > + * 2. it is as close as possible to similar codecs
> >   *
> >   * After adding new codec IDs, do not forget to add an entry to the
codec
> >   * descriptor list and bump libavcodec minor version.
> > @@ -297,22 +296,21 @@ enum AVCodecID {
> >      AV_CODEC_ID_HAP,
> >      AV_CODEC_ID_DDS,
> >
> > -    AV_CODEC_ID_Y41P       = MKBETAG('Y','4','1','P'),
> > -    AV_CODEC_ID_AVRP       = MKBETAG('A','V','R','P'),
> > -
> > -    AV_CODEC_ID_012V       = MKBETAG('0','1','2','V'),
> > -    AV_CODEC_ID_AVUI       = MKBETAG('A','V','U','I'),
> > -    AV_CODEC_ID_AYUV       = MKBETAG('A','Y','U','V'),
> > -    AV_CODEC_ID_TARGA_Y216 = MKBETAG('T','2','1','6'),
> > -    AV_CODEC_ID_V308       = MKBETAG('V','3','0','8'),
> > -    AV_CODEC_ID_V408       = MKBETAG('V','4','0','8'),
> > -    AV_CODEC_ID_YUV4       = MKBETAG('Y','U','V','4'),
> > -    AV_CODEC_ID_AVRN       = MKBETAG('A','V','R','n'),
> > -    AV_CODEC_ID_CPIA       = MKBETAG('C','P','I','A'),
> > -    AV_CODEC_ID_XFACE      = MKBETAG('X','F','A','C'),
> > -    AV_CODEC_ID_SNOW       = MKBETAG('S','N','O','W'),
> > -    AV_CODEC_ID_SMVJPEG    = MKBETAG('S','M','V','J'),
> > -    AV_CODEC_ID_APNG       = MKBETAG('A','P','N','G'),
> > +    AV_CODEC_ID_Y41P = 0x8000,
> > +    AV_CODEC_ID_AVRP,
> > +    AV_CODEC_ID_012V,
> > +    AV_CODEC_ID_AVUI,
> > +    AV_CODEC_ID_AYUV,
> > +    AV_CODEC_ID_TARGA_Y216,
> > +    AV_CODEC_ID_V308,
> > +    AV_CODEC_ID_V408,
> > +    AV_CODEC_ID_YUV4,
> > +    AV_CODEC_ID_AVRN,
> > +    AV_CODEC_ID_CPIA,
> > +    AV_CODEC_ID_XFACE,
> > +    AV_CODEC_ID_SNOW,
> > +    AV_CODEC_ID_SMVJPEG,
> > +    AV_CODEC_ID_APNG,
> >
> >      /* various PCM "codecs" */
> >      AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at
the start of audio codecs
> > @@ -347,6 +345,9 @@ enum AVCodecID {
> >      AV_CODEC_ID_PCM_S24LE_PLANAR,
> >      AV_CODEC_ID_PCM_S32LE_PLANAR,
> >      AV_CODEC_ID_PCM_S16BE_PLANAR,
> > +    /* new PCM "codecs" should be added right below this line starting
with
> > +     * an explicit value of for example 0x10800
> > +     */
> >
> >      /* various ADPCM codecs */
> >      AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
> > @@ -382,14 +383,16 @@ enum AVCodecID {
> >      AV_CODEC_ID_ADPCM_VIMA,
> >
> >  #if FF_API_VIMA_DECODER
> > -    AV_CODEC_ID_VIMA       = MKBETAG('V','I','M','A'),
>
> AV_CODEC_ID_VIMA should just be an alias for AV_CODEC_ID_ADPCM_VIMA,
> with the same value.

Why not just remove it? nobody uses it.

>
> > +    AV_CODEC_ID_VIMA = 0x11800,
> > +    AV_CODEC_ID_ADPCM_AFC,
> > +#else
> > +    AV_CODEC_ID_ADPCM_AFC = 0x11800,
> >  #endif
> > -    AV_CODEC_ID_ADPCM_AFC  = MKBETAG('A','F','C',' '),
> > -    AV_CODEC_ID_ADPCM_IMA_OKI = MKBETAG('O','K','I',' '),
> > -    AV_CODEC_ID_ADPCM_DTK  = MKBETAG('D','T','K',' '),
> > -    AV_CODEC_ID_ADPCM_IMA_RAD = MKBETAG('R','A','D',' '),
> > -    AV_CODEC_ID_ADPCM_G726LE = MKBETAG('6','2','7','G'),
> > -    AV_CODEC_ID_ADPCM_THP_LE = MKBETAG('T','H','P','L'),
> > +    AV_CODEC_ID_ADPCM_IMA_OKI,
> > +    AV_CODEC_ID_ADPCM_DTK,
> > +    AV_CODEC_ID_ADPCM_IMA_RAD,
> > +    AV_CODEC_ID_ADPCM_G726LE,
> > +    AV_CODEC_ID_ADPCM_THP_LE,
> >
> >      /* AMR */
> >      AV_CODEC_ID_AMR_NB = 0x12000,
> > @@ -476,16 +479,17 @@ enum AVCodecID {
> >      AV_CODEC_ID_PAF_AUDIO,
> >      AV_CODEC_ID_ON2AVC,
> >      AV_CODEC_ID_DSS_SP,
> > -    AV_CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'),
> > -    AV_CODEC_ID_SONIC       = MKBETAG('S','O','N','C'),
> > -    AV_CODEC_ID_SONIC_LS    = MKBETAG('S','O','N','L'),
> > -    AV_CODEC_ID_EVRC        = MKBETAG('s','e','v','c'),
> > -    AV_CODEC_ID_SMV         = MKBETAG('s','s','m','v'),
> > -    AV_CODEC_ID_DSD_LSBF    = MKBETAG('D','S','D','L'),
> > -    AV_CODEC_ID_DSD_MSBF    = MKBETAG('D','S','D','M'),
> > -    AV_CODEC_ID_DSD_LSBF_PLANAR = MKBETAG('D','S','D','1'),
> > -    AV_CODEC_ID_DSD_MSBF_PLANAR = MKBETAG('D','S','D','8'),
> > -    AV_CODEC_ID_4GV         = MKBETAG('s','4','g','v'),
> > +
> > +    AV_CODEC_ID_FFWAVESYNTH = 0x15800,
> > +    AV_CODEC_ID_SONIC,
> > +    AV_CODEC_ID_SONIC_LS,
> > +    AV_CODEC_ID_EVRC,
> > +    AV_CODEC_ID_SMV,
> > +    AV_CODEC_ID_DSD_LSBF,
> > +    AV_CODEC_ID_DSD_MSBF,
> > +    AV_CODEC_ID_DSD_LSBF_PLANAR,
> > +    AV_CODEC_ID_DSD_MSBF_PLANAR,
> > +    AV_CODEC_ID_4GV,
> >
> >      /* subtitle codecs */
> >      AV_CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID
pointing at the start of subtitle codecs.
> > @@ -498,33 +502,35 @@ enum AVCodecID {
> >      AV_CODEC_ID_HDMV_PGS_SUBTITLE,
> >      AV_CODEC_ID_DVB_TELETEXT,
> >      AV_CODEC_ID_SRT,
> > -    AV_CODEC_ID_MICRODVD   = MKBETAG('m','D','V','D'),
> > -    AV_CODEC_ID_EIA_608    = MKBETAG('c','6','0','8'),
> > -    AV_CODEC_ID_JACOSUB    = MKBETAG('J','S','U','B'),
> > -    AV_CODEC_ID_SAMI       = MKBETAG('S','A','M','I'),
> > -    AV_CODEC_ID_REALTEXT   = MKBETAG('R','T','X','T'),
> > -    AV_CODEC_ID_STL        = MKBETAG('S','p','T','L'),
> > -    AV_CODEC_ID_SUBVIEWER1 = MKBETAG('S','b','V','1'),
> > -    AV_CODEC_ID_SUBVIEWER  = MKBETAG('S','u','b','V'),
> > -    AV_CODEC_ID_SUBRIP     = MKBETAG('S','R','i','p'),
> > -    AV_CODEC_ID_WEBVTT     = MKBETAG('W','V','T','T'),
> > -    AV_CODEC_ID_MPL2       = MKBETAG('M','P','L','2'),
> > -    AV_CODEC_ID_VPLAYER    = MKBETAG('V','P','l','r'),
> > -    AV_CODEC_ID_PJS        = MKBETAG('P','h','J','S'),
> > -    AV_CODEC_ID_ASS        = MKBETAG('A','S','S',' '),  ///< ASS as
defined in Matroska
> > -    AV_CODEC_ID_HDMV_TEXT_SUBTITLE = MKBETAG('B','D','T','X'),
> > +
> > +    AV_CODEC_ID_MICRODVD   = 0x17800,
> > +    AV_CODEC_ID_EIA_608,
> > +    AV_CODEC_ID_JACOSUB,
> > +    AV_CODEC_ID_SAMI,
> > +    AV_CODEC_ID_REALTEXT,
> > +    AV_CODEC_ID_STL,
> > +    AV_CODEC_ID_SUBVIEWER1,
> > +    AV_CODEC_ID_SUBVIEWER,
> > +    AV_CODEC_ID_SUBRIP,
> > +    AV_CODEC_ID_WEBVTT,
> > +    AV_CODEC_ID_MPL2,
> > +    AV_CODEC_ID_VPLAYER,
> > +    AV_CODEC_ID_PJS,
> > +    AV_CODEC_ID_ASS,
> > +    AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
> >
> >      /* other specific kind of codecs (generally used for attachments)
*/
> >      AV_CODEC_ID_FIRST_UNKNOWN = 0x18000,           ///< A dummy ID
pointing at the start of various fake codecs.
> >      AV_CODEC_ID_TTF = 0x18000,
> > -    AV_CODEC_ID_BINTEXT    = MKBETAG('B','T','X','T'),
> > -    AV_CODEC_ID_XBIN       = MKBETAG('X','B','I','N'),
> > -    AV_CODEC_ID_IDF        = MKBETAG( 0 ,'I','D','F'),
> > -    AV_CODEC_ID_OTF        = MKBETAG( 0 ,'O','T','F'),
> > -    AV_CODEC_ID_SMPTE_KLV  = MKBETAG('K','L','V','A'),
> > -    AV_CODEC_ID_DVD_NAV    = MKBETAG('D','N','A','V'),
> > -    AV_CODEC_ID_TIMED_ID3  = MKBETAG('T','I','D','3'),
> > -    AV_CODEC_ID_BIN_DATA   = MKBETAG('D','A','T','A'),
> > +
> > +    AV_CODEC_ID_BINTEXT    = 0x18800,
> > +    AV_CODEC_ID_XBIN,
> > +    AV_CODEC_ID_IDF,
> > +    AV_CODEC_ID_OTF,
> > +    AV_CODEC_ID_SMPTE_KLV,
> > +    AV_CODEC_ID_DVD_NAV,
> > +    AV_CODEC_ID_TIMED_ID3,
> > +    AV_CODEC_ID_BIN_DATA,
> >
> >
> >      AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like
AV_CODEC_ID_NONE) but lavf should attempt to identify it
> > --
> > 2.5.0
> >
> > _______________________________________________
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> > ffmpeg-devel at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
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