Revert "Merge commit '8e2ea691351c5079cdab245ff7bfa5c0f3e3bfe4'"

This reverts commit 1c193ac1f9cfe703d6a1c36795f309ba5d14bf6e, reversing
changes made to 7ebc9f8df4.

Several FATE tests started failing after this merge, so it's reverted
until it can be properly fixed.

libavformat/internal.h

@@ -178,15 +178,6 @@ struct AVStreamInternal {
 
     enum AVCodecID orig_codec_id;
 
-    /* the context for extracting extradata in find_stream_info()
-     * inited=1/bsf=NULL signals that extracting is not possible (codec not
-     * supported) */
-    struct {
-        AVBSFContext *bsf;
-        AVPacket     *pkt;
-        int inited;
-    } extract_extradata;
-
     /**
      * Whether the internal avctx needs to be updated from codecpar (after a late change to codecpar)
      */

libavformat/utils.c

@@ -3370,104 +3370,6 @@ void ff_rfps_calculate(AVFormatContext *ic)
     }
 }
 
-static int extract_extradata_init(AVStream *st)
-{
-    AVStreamInternal *i = st->internal;
-    const AVBitStreamFilter *f;
-    int ret;
-
-    f = av_bsf_get_by_name("extract_extradata");
-    if (!f)
-        goto finish;
-
-    i->extract_extradata.pkt = av_packet_alloc();
-    if (!i->extract_extradata.pkt)
-        return AVERROR(ENOMEM);
-
-    ret = av_bsf_alloc(f, &i->extract_extradata.bsf);
-    if (ret < 0)
-        goto fail;
-
-    ret = avcodec_parameters_copy(i->extract_extradata.bsf->par_in,
-                                  st->codecpar);
-    if (ret < 0)
-        goto fail;
-
-    i->extract_extradata.bsf->time_base_in = st->time_base;
-
-    /* if init fails here, we assume extracting extradata is just not
-     * supported for this codec, so we return success */
-    ret = av_bsf_init(i->extract_extradata.bsf);
-    if (ret < 0) {
-        av_bsf_free(&i->extract_extradata.bsf);
-        ret = 0;
-    }
-
-finish:
-    i->extract_extradata.inited = 1;
-
-    return 0;
-fail:
-    av_bsf_free(&i->extract_extradata.bsf);
-    av_packet_free(&i->extract_extradata.pkt);
-    return ret;
-}
-
-static int extract_extradata(AVStream *st, AVPacket *pkt)
-{
-    AVStreamInternal *i = st->internal;
-    AVPacket *pkt_ref;
-    int ret;
-
-    if (!i->extract_extradata.inited) {
-        ret = extract_extradata_init(st);
-        if (ret < 0)
-            return ret;
-    }
-
-    if (i->extract_extradata.inited && !i->extract_extradata.bsf)
-        return 0;
-
-    pkt_ref = i->extract_extradata.pkt;
-    ret = av_packet_ref(pkt_ref, pkt);
-    if (ret < 0)
-        return ret;
-
-    ret = av_bsf_send_packet(i->extract_extradata.bsf, pkt_ref);
-    if (ret < 0) {
-        av_packet_unref(pkt_ref);
-        return ret;
-    }
-
-    while (ret >= 0 && !i->avctx->extradata) {
-        int extradata_size;
-        uint8_t *extradata;
-
-        ret = av_bsf_receive_packet(i->extract_extradata.bsf, pkt_ref);
-        if (ret < 0) {
-            if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
-                return ret;
-            continue;
-        }
-
-        extradata = av_packet_get_side_data(pkt_ref, AV_PKT_DATA_NEW_EXTRADATA,
-                                            &extradata_size);
-
-        if (extradata) {
-            i->avctx->extradata = av_mallocz(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
-            if (!i->avctx->extradata) {
-                av_packet_unref(pkt_ref);
-                return AVERROR(ENOMEM);
-            }
-            memcpy(i->avctx->extradata, extradata, extradata_size);
-            i->avctx->extradata_size = extradata_size;
-        }
-        av_packet_unref(pkt_ref);
-    }
-
-    return 0;
-}
-
 int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
 {
     int i, count = 0, ret = 0, j;
@@ -3627,10 +3529,8 @@ FF_ENABLE_DEPRECATION_WARNINGS
                 if (count < fps_analyze_framecount)
                     break;
             }
-            if (!st->codecpar->extradata &&
-                !st->internal->avctx->extradata &&
-                (!st->internal->extract_extradata.inited ||
-                 st->internal->extract_extradata.bsf))
+            if (st->parser && st->parser->parser->split &&
+                !st->internal->avctx->extradata)
                 break;
             if (st->first_dts == AV_NOPTS_VALUE &&
                 !(ic->iformat->flags & AVFMT_NOTIMESTAMPS) &&
@@ -3780,10 +3680,17 @@ FF_ENABLE_DEPRECATION_WARNINGS
         if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
             ff_rfps_add_frame(ic, st, pkt->dts);
 #endif
-        if (!st->internal->avctx->extradata) {
-            ret = extract_extradata(st, pkt);
-            if (ret < 0)
-                goto find_stream_info_err;
+        if (st->parser && st->parser->parser->split && !avctx->extradata) {
+            int i = st->parser->parser->split(avctx, pkt->data, pkt->size);
+            if (i > 0 && i < FF_MAX_EXTRADATA_SIZE) {
+                avctx->extradata_size = i;
+                avctx->extradata      = av_mallocz(avctx->extradata_size +
+                                                   AV_INPUT_BUFFER_PADDING_SIZE);
+                if (!avctx->extradata)
+                    return AVERROR(ENOMEM);
+                memcpy(avctx->extradata, pkt->data,
+                       avctx->extradata_size);
+            }
         }
 
         /* If still no information, we try to open the codec and to
@@ -4043,8 +3950,6 @@ find_stream_info_err:
         if (st->info)
             av_freep(&st->info->duration_error);
         av_freep(&ic->streams[i]->info);
-        av_bsf_free(&ic->streams[i]->internal->extract_extradata.bsf);
-        av_packet_free(&ic->streams[i]->internal->extract_extradata.pkt);
     }
     if (ic->pb)
         av_log(ic, AV_LOG_DEBUG, "After avformat_find_stream_info() pos: %"PRId64" bytes read:%"PRId64" seeks:%d frames:%d\n",
@@ -4232,8 +4137,6 @@ static void free_stream(AVStream **pst)
             av_bsf_free(&st->internal->bsfcs[i]);
             av_freep(&st->internal->bsfcs);
         }
-        av_bsf_free(&st->internal->extract_extradata.bsf);
-        av_packet_free(&st->internal->extract_extradata.pkt);
     }
     av_freep(&st->internal);