avcodec: remove pointless lowres deprecation wrappers

Neither the feature, public fields, or AVOptions were ever truly deprecated,
nor will have been removed if this FF_API_ define was left in place, so
get rid of it as it's misleading.

Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/avcodec.h

@@ -1741,14 +1741,12 @@ typedef struct AVCodecContext {
      */
     int bits_per_raw_sample;
 
-#if FF_API_LOWRES
     /**
      * low resolution decoding, 1-> 1/2 size, 2->1/4 size
      * - encoding: unused
      * - decoding: Set by user.
      */
      int lowres;
-#endif
 
 #if FF_API_CODED_FRAME
     /**
@@ -2084,15 +2082,6 @@ typedef struct AVCodecContext {
      */
     const AVCodecDescriptor *codec_descriptor;
 
-#if !FF_API_LOWRES
-    /**
-     * low resolution decoding, 1-> 1/2 size, 2->1/4 size
-     * - encoding: unused
-     * - decoding: Set by user.
-     */
-     int lowres;
-#endif
-
     /**
      * Current statistics for PTS correction.
      * - decoding: maintained and used by libavcodec, not intended to be used by user apps
@@ -2366,12 +2355,10 @@ void                     av_codec_set_codec_descriptor(AVCodecContext *avctx, co
 attribute_deprecated
 unsigned av_codec_get_codec_properties(const AVCodecContext *avctx);
 
-#if FF_API_LOWRES
 attribute_deprecated
 int  av_codec_get_lowres(const AVCodecContext *avctx);
 attribute_deprecated
 void av_codec_set_lowres(AVCodecContext *avctx, int val);
-#endif
 
 attribute_deprecated
 int  av_codec_get_seek_preroll(const AVCodecContext *avctx);

libavcodec/version.h

@@ -51,9 +51,6 @@
  * at once through the bump. This improves the git bisect-ability of the change.
  */
 
-#ifndef FF_API_LOWRES
-#define FF_API_LOWRES            (LIBAVCODEC_VERSION_MAJOR < 59)
-#endif
 #ifndef FF_API_AVCTX_TIMEBASE
 #define FF_API_AVCTX_TIMEBASE    (LIBAVCODEC_VERSION_MAJOR < 59)
 #endif

libavformat/utils.c

@@ -4131,7 +4131,6 @@ FF_DISABLE_DEPRECATION_WARNINGS
         if (ret < 0)
             goto find_stream_info_err;
 
-#if FF_API_LOWRES
         // The old API (AVStream.codec) "requires" the resolution to be adjusted
         // by the lowres factor.
         if (st->internal->avctx->lowres && st->internal->avctx->width) {
@@ -4139,7 +4138,6 @@ FF_DISABLE_DEPRECATION_WARNINGS
             st->codec->width = st->internal->avctx->width;
             st->codec->height = st->internal->avctx->height;
         }
-#endif
 
         if (st->codec->codec_tag != MKTAG('t','m','c','d')) {
             st->codec->time_base = st->internal->avctx->time_base;