ffmpeg: Replace -deinterlace (which was broken by the buffer ref stuff) with yadif injection

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg.c

@@ -701,49 +701,6 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost,
     }
 }
 
-#if FF_API_DEINTERLACE
-static void pre_process_video_frame(InputStream *ist, AVPicture *picture, void **bufp)
-{
-    AVCodecContext *dec;
-    AVPicture *picture2;
-    AVPicture picture_tmp;
-    uint8_t *buf = 0;
-
-    dec = ist->st->codec;
-
-    /* deinterlace : must be done before any resize */
-    if (FF_API_DEINTERLACE && do_deinterlace) {
-        int size;
-
-        /* create temporary picture */
-        size = avpicture_get_size(dec->pix_fmt, dec->width, dec->height);
-        if (size < 0)
-            return;
-        buf  = av_malloc(size);
-        if (!buf)
-            return;
-
-        picture2 = &picture_tmp;
-        avpicture_fill(picture2, buf, dec->pix_fmt, dec->width, dec->height);
-
-        if (avpicture_deinterlace(picture2, picture,
-                                 dec->pix_fmt, dec->width, dec->height) < 0) {
-            /* if error, do not deinterlace */
-            av_log(NULL, AV_LOG_WARNING, "Deinterlacing failed\n");
-            av_free(buf);
-            buf = NULL;
-            picture2 = picture;
-        }
-    } else {
-        picture2 = picture;
-    }
-
-    if (picture != picture2)
-        *picture = *picture2;
-    *bufp = buf;
-}
-#endif
-
 static void do_subtitle_out(AVFormatContext *s,
                             OutputStream *ost,
                             InputStream *ist,
@@ -1712,9 +1669,6 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
     }
 
     pkt->size = 0;
-#if FF_API_DEINTERLACE
-    pre_process_video_frame(ist, (AVPicture *)decoded_frame, &buffer_to_free);
-#endif
 
     rate_emu_sleep(ist);
 

ffmpeg_filter.c

@@ -604,6 +604,24 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
         pad_idx = 0;
     }
 
+    if (do_deinterlace) {
+        AVFilterContext *yadif;
+
+        snprintf(name, sizeof(name), "deinterlace input from stream %d:%d",
+                 ist->file_index, ist->st->index);
+        if ((ret = avfilter_graph_create_filter(&yadif,
+                                                avfilter_get_by_name("yadif"),
+                                                name, "", NULL,
+                                                fg->graph)) < 0)
+            return ret;
+
+        if ((ret = avfilter_link(yadif, 0, first_filter, pad_idx)) < 0)
+            return ret;
+
+        first_filter = yadif;
+        pad_idx = 0;
+    }
+
     if ((ret = avfilter_link(ifilter->filter, 0, first_filter, pad_idx)) < 0)
         return ret;
     return 0;

ffmpeg_opt.c

@@ -2233,15 +2233,6 @@ static int opt_vsync(void *optctx, const char *opt, const char *arg)
     return 0;
 }
 
-#if FF_API_DEINTERLACE
-static int opt_deinterlace(void *optctx, const char *opt, const char *arg)
-{
-    av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
-    do_deinterlace = 1;
-    return 0;
-}
-#endif
-
 static int opt_timecode(void *optctx, const char *opt, const char *arg)
 {
     OptionsContext *o = optctx;
@@ -2656,10 +2647,8 @@ const OptionDef options[] = {
     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
         "select two pass log file name prefix", "prefix" },
-#if FF_API_DEINTERLACE
-    { "deinterlace",  OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_deinterlace },
+    { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
         "this option is deprecated, use the yadif filter instead" },
-#endif
     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
         "calculate PSNR of compressed frames" },
     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { &opt_vstats },