X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Futils.c;h=e36b75081f1631d697bb05850b6238c59b50e00f;hb=339af976b6fd9c05d1e75e75a5323efdb3d6afa1;hp=d5940e763ffcf9fc68c31c6a6575f93ba7e687dc;hpb=d422b2ed87ee7d3b3014cd3fac553e6aad7d4f14;p=ffmpeg

diff --git a/libavformat/utils.c b/libavformat/utils.c
index d5940e763ff..e36b75081f1 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -113,27 +113,6 @@ static int64_t wrap_timestamp(const AVStream *st, int64_t timestamp)
     return timestamp;
 }
 
-#if FF_API_FORMAT_GET_SET
-MAKE_ACCESSORS(AVStream, stream, AVRational, r_frame_rate)
-#if FF_API_LAVF_FFSERVER
-FF_DISABLE_DEPRECATION_WARNINGS
-MAKE_ACCESSORS(AVStream, stream, char *, recommended_encoder_configuration)
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, video_codec)
-MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, audio_codec)
-MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, subtitle_codec)
-MAKE_ACCESSORS(AVFormatContext, format, AVCodec *, data_codec)
-MAKE_ACCESSORS(AVFormatContext, format, int, metadata_header_padding)
-MAKE_ACCESSORS(AVFormatContext, format, void *, opaque)
-MAKE_ACCESSORS(AVFormatContext, format, av_format_control_message, control_message_cb)
-#if FF_API_OLD_OPEN_CALLBACKS
-FF_DISABLE_DEPRECATION_WARNINGS
-MAKE_ACCESSORS(AVFormatContext, format, AVOpenCallback, open_cb)
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-#endif
-
 int64_t av_stream_get_end_pts(const AVStream *st)
 {
     if (st->internal->priv_pts) {
@@ -231,13 +210,6 @@ static const AVCodec *find_probe_decoder(AVFormatContext *s, const AVStream *st,
     return codec;
 }
 
-#if FF_API_FORMAT_GET_SET
-int av_format_get_probe_score(const AVFormatContext *s)
-{
-    return s->probe_score;
-}
-#endif
-
 /* an arbitrarily chosen "sane" max packet size -- 50M */
 #define SANE_CHUNK_SIZE (50000000)
 
@@ -309,9 +281,15 @@ static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
 
 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
 {
+#if FF_API_INIT_PACKET
+FF_DISABLE_DEPRECATION_WARNINGS
     av_init_packet(pkt);
     pkt->data = NULL;
     pkt->size = 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#else
+    av_packet_unref(pkt);
+#endif
     pkt->pos  = avio_tell(s);
 
     return append_packet_chunked(s, pkt, size);
@@ -392,27 +370,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
 /************************************************************/
 /* input media file */
 
-#if FF_API_DEMUXER_OPEN
-int av_demuxer_open(AVFormatContext *ic) {
-    int err;
-
-    if (ic->format_whitelist && av_match_list(ic->iformat->name, ic->format_whitelist, ',') <= 0) {
-        av_log(ic, AV_LOG_ERROR, "Format not on whitelist \'%s\'\n", ic->format_whitelist);
-        return AVERROR(EINVAL);
-    }
-
-    if (ic->iformat->read_header) {
-        err = ic->iformat->read_header(ic);
-        if (err < 0)
-            return err;
-    }
-
-    if (ic->pb && !ic->internal->data_offset)
-        ic->internal->data_offset = avio_tell(ic->pb);
-
-    return 0;
-}
-#endif
 /* Open input file and probe the format if necessary. */
 static int init_input(AVFormatContext *s, const char *filename,
                       AVDictionary **options)
@@ -468,6 +425,41 @@ int avformat_queue_attached_pictures(AVFormatContext *s)
     return 0;
 }
 
+int ff_add_attached_pic(AVFormatContext *s, AVStream *st0, AVIOContext *pb,
+                        AVBufferRef **buf, int size)
+{
+    AVStream *st = st0;
+    AVPacket *pkt;
+    int ret;
+
+    if (!st && !(st = avformat_new_stream(s, NULL)))
+        return AVERROR(ENOMEM);
+    pkt = &st->attached_pic;
+    if (buf) {
+        av_assert1(*buf);
+        av_packet_unref(pkt);
+        pkt->buf  = *buf;
+        pkt->data = (*buf)->data;
+        pkt->size = (*buf)->size - AV_INPUT_BUFFER_PADDING_SIZE;
+        *buf = NULL;
+    } else {
+        ret = av_get_packet(pb, pkt, size);
+        if (ret < 0)
+            goto fail;
+    }
+    st->disposition         |= AV_DISPOSITION_ATTACHED_PIC;
+    st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+
+    pkt->stream_index = st->index;
+    pkt->flags       |= AV_PKT_FLAG_KEY;
+
+    return 0;
+fail:
+    if (!st0)
+        ff_free_stream(s, st);
+    return ret;
+}
+
 static int update_stream_avctx(AVFormatContext *s)
 {
     int i, ret;
@@ -504,7 +496,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
 
 int avformat_open_input(AVFormatContext **ps, const char *filename,
-                        ff_const59 AVInputFormat *fmt, AVDictionary **options)
+                        const AVInputFormat *fmt, AVDictionary **options)
 {
     AVFormatContext *s = *ps;
     int i, ret = 0;
@@ -534,11 +526,6 @@ int avformat_open_input(AVFormatContext **ps, const char *filename,
         goto fail;
     }
 
-#if FF_API_FORMAT_FILENAME
-FF_DISABLE_DEPRECATION_WARNINGS
-    av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
     if ((ret = init_input(s, filename, &tmp)) < 0)
         goto fail;
     s->probe_score = ret;
@@ -595,11 +582,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
     if (s->pb)
         ff_id3v2_read_dict(s->pb, &s->internal->id3v2_meta, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta);
 
-#if FF_API_DEMUXER_OPEN
-    if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->iformat->read_header)
-#else
     if (s->iformat->read_header)
-#endif
         if ((ret = s->iformat->read_header(s)) < 0)
             goto fail;
 
@@ -628,11 +611,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
     if ((ret = avformat_queue_attached_pictures(s)) < 0)
         goto close;
 
-#if FF_API_DEMUXER_OPEN
-    if (!(s->flags&AVFMT_FLAG_PRIV_OPT) && s->pb && !s->internal->data_offset)
-#else
     if (s->pb && !s->internal->data_offset)
-#endif
         s->internal->data_offset = avio_tell(s->pb);
 
     s->internal->raw_packet_buffer_remaining_size = RAW_PACKET_BUFFER_SIZE;
@@ -804,12 +783,18 @@ static int update_wrap_reference(AVFormatContext *s, AVStream *st, int stream_in
 
 int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    int ret, i, err;
+    int err, i;
     AVStream *st;
 
+#if FF_API_INIT_PACKET
+FF_DISABLE_DEPRECATION_WARNINGS
     pkt->data = NULL;
     pkt->size = 0;
     av_init_packet(pkt);
+FF_ENABLE_DEPRECATION_WARNINGS
+#else
+    av_packet_unref(pkt);
+#endif
 
     for (;;) {
         PacketList *pktl = s->internal->raw_packet_buffer;
@@ -828,17 +813,17 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
             }
         }
 
-        ret = s->iformat->read_packet(s, pkt);
-        if (ret < 0) {
+        err = s->iformat->read_packet(s, pkt);
+        if (err < 0) {
             av_packet_unref(pkt);
 
             /* Some demuxers return FFERROR_REDO when they consume
                data and discard it (ignored streams, junk, extradata).
                We must re-call the demuxer to get the real packet. */
-            if (ret == FFERROR_REDO)
+            if (err == FFERROR_REDO)
                 continue;
-            if (!pktl || ret == AVERROR(EAGAIN))
-                return ret;
+            if (!pktl || err == AVERROR(EAGAIN))
+                return err;
             for (i = 0; i < s->nb_streams; i++) {
                 st = s->streams[i];
                 if (st->probe_packets || st->internal->request_probe > 0)
@@ -892,7 +877,7 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
             pkt->dts = pkt->pts = av_rescale_q(av_gettime(), AV_TIME_BASE_Q, st->time_base);
 
         if (!pktl && st->internal->request_probe <= 0)
-            return ret;
+            return 0;
 
         err = avpriv_packet_list_put(&s->internal->raw_packet_buffer,
                                  &s->internal->raw_packet_buffer_end,
@@ -1263,7 +1248,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
         presentation_delayed = 1;
 
     if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE &&
-        st->pts_wrap_bits < 63 && pkt->dts > INT64_MIN + (1LL << (st->pts_wrap_bits - 1)) &&
+        st->pts_wrap_bits < 63 && pkt->dts > INT64_MIN + (1LL << st->pts_wrap_bits) &&
         pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) {
         if (is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits - 1)) > st->cur_dts) {
             pkt->dts -= 1LL << st->pts_wrap_bits;
@@ -1392,12 +1377,6 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
     /* update flags */
     if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA || ff_is_intra_only(st->codecpar->codec_id))
         pkt->flags |= AV_PKT_FLAG_KEY;
-#if FF_API_CONVERGENCE_DURATION
-FF_DISABLE_DEPRECATION_WARNINGS
-    if (pc)
-        pkt->convergence_duration = pc->convergence_duration;
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
 }
 
 /**
@@ -1409,15 +1388,13 @@ FF_ENABLE_DEPRECATION_WARNINGS
 static int parse_packet(AVFormatContext *s, AVPacket *pkt,
                         int stream_index, int flush)
 {
-    AVPacket out_pkt;
+    AVPacket *out_pkt = s->internal->parse_pkt;
     AVStream *st = s->streams[stream_index];
     uint8_t *data = pkt->data;
     int size      = pkt->size;
     int ret = 0, got_output = flush;
 
-    if (size || flush) {
-        av_init_packet(&out_pkt);
-    } else if (st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
+    if (!size && !flush && st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) {
         // preserve 0-size sync packets
         compute_pkt_fields(s, st, st->parser, pkt, AV_NOPTS_VALUE, AV_NOPTS_VALUE);
     }
@@ -1428,7 +1405,7 @@ static int parse_packet(AVFormatContext *s, AVPacket *pkt,
         int64_t next_dts = pkt->dts;
 
         len = av_parser_parse2(st->parser, st->internal->avctx,
-                               &out_pkt.data, &out_pkt.size, data, size,
+                               &out_pkt->data, &out_pkt->size, data, size,
                                pkt->pts, pkt->dts, pkt->pos);
 
         pkt->pts = pkt->dts = AV_NOPTS_VALUE;
@@ -1438,39 +1415,39 @@ static int parse_packet(AVFormatContext *s, AVPacket *pkt,
         data  = len ? data + len : data;
         size -= len;
 
-        got_output = !!out_pkt.size;
+        got_output = !!out_pkt->size;
 
-        if (!out_pkt.size)
+        if (!out_pkt->size)
             continue;
 
-        if (pkt->buf && out_pkt.data == pkt->data) {
-            /* reference pkt->buf only when out_pkt.data is guaranteed to point
+        if (pkt->buf && out_pkt->data == pkt->data) {
+            /* reference pkt->buf only when out_pkt->data is guaranteed to point
              * to data in it and not in the parser's internal buffer. */
             /* XXX: Ensure this is the case with all parsers when st->parser->flags
              * is PARSER_FLAG_COMPLETE_FRAMES and check for that instead? */
-            out_pkt.buf = av_buffer_ref(pkt->buf);
-            if (!out_pkt.buf) {
+            out_pkt->buf = av_buffer_ref(pkt->buf);
+            if (!out_pkt->buf) {
                 ret = AVERROR(ENOMEM);
                 goto fail;
             }
         } else {
-            ret = av_packet_make_refcounted(&out_pkt);
+            ret = av_packet_make_refcounted(out_pkt);
             if (ret < 0)
                 goto fail;
         }
 
         if (pkt->side_data) {
-            out_pkt.side_data       = pkt->side_data;
-            out_pkt.side_data_elems = pkt->side_data_elems;
+            out_pkt->side_data       = pkt->side_data;
+            out_pkt->side_data_elems = pkt->side_data_elems;
             pkt->side_data          = NULL;
             pkt->side_data_elems    = 0;
         }
 
         /* set the duration */
-        out_pkt.duration = (st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) ? pkt->duration : 0;
+        out_pkt->duration = (st->parser->flags & PARSER_FLAG_COMPLETE_FRAMES) ? pkt->duration : 0;
         if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
             if (st->internal->avctx->sample_rate > 0) {
-                out_pkt.duration =
+                out_pkt->duration =
                     av_rescale_q_rnd(st->parser->duration,
                                      (AVRational) { 1, st->internal->avctx->sample_rate },
                                      st->time_base,
@@ -1478,32 +1455,30 @@ static int parse_packet(AVFormatContext *s, AVPacket *pkt,
             }
         }
 
-        out_pkt.stream_index = st->index;
-        out_pkt.pts          = st->parser->pts;
-        out_pkt.dts          = st->parser->dts;
-        out_pkt.pos          = st->parser->pos;
-        out_pkt.flags       |= pkt->flags & AV_PKT_FLAG_DISCARD;
+        out_pkt->stream_index = st->index;
+        out_pkt->pts          = st->parser->pts;
+        out_pkt->dts          = st->parser->dts;
+        out_pkt->pos          = st->parser->pos;
+        out_pkt->flags       |= pkt->flags & AV_PKT_FLAG_DISCARD;
 
         if (st->need_parsing == AVSTREAM_PARSE_FULL_RAW)
-            out_pkt.pos = st->parser->frame_offset;
+            out_pkt->pos = st->parser->frame_offset;
 
         if (st->parser->key_frame == 1 ||
             (st->parser->key_frame == -1 &&
              st->parser->pict_type == AV_PICTURE_TYPE_I))
-            out_pkt.flags |= AV_PKT_FLAG_KEY;
+            out_pkt->flags |= AV_PKT_FLAG_KEY;
 
         if (st->parser->key_frame == -1 && st->parser->pict_type ==AV_PICTURE_TYPE_NONE && (pkt->flags&AV_PKT_FLAG_KEY))
-            out_pkt.flags |= AV_PKT_FLAG_KEY;
+            out_pkt->flags |= AV_PKT_FLAG_KEY;
 
-        compute_pkt_fields(s, st, st->parser, &out_pkt, next_dts, next_pts);
+        compute_pkt_fields(s, st, st->parser, out_pkt, next_dts, next_pts);
 
         ret = avpriv_packet_list_put(&s->internal->parse_queue,
                                  &s->internal->parse_queue_end,
-                                 &out_pkt, NULL, 0);
-        if (ret < 0) {
-            av_packet_unref(&out_pkt);
+                                 out_pkt, NULL, 0);
+        if (ret < 0)
             goto fail;
-        }
     }
 
     /* end of the stream => close and free the parser */
@@ -1513,6 +1488,8 @@ static int parse_packet(AVFormatContext *s, AVPacket *pkt,
     }
 
 fail:
+    if (ret < 0)
+        av_packet_unref(out_pkt);
     av_packet_unref(pkt);
     return ret;
 }
@@ -2119,6 +2096,33 @@ int av_index_search_timestamp(AVStream *st, int64_t wanted_timestamp, int flags)
                                      wanted_timestamp, flags);
 }
 
+int avformat_index_get_entries_count(const AVStream *st)
+{
+    return st->internal->nb_index_entries;
+}
+
+const AVIndexEntry *avformat_index_get_entry(const AVStream *st, int idx)
+{
+    if (idx < 0 || idx >= st->internal->nb_index_entries)
+        return NULL;
+
+    return &st->internal->index_entries[idx];
+}
+
+const AVIndexEntry *avformat_index_get_entry_from_timestamp(const AVStream *st,
+                                                            int64_t wanted_timestamp,
+                                                            int flags)
+{
+    int idx = ff_index_search_timestamp(st->internal->index_entries,
+                                        st->internal->nb_index_entries,
+                                        wanted_timestamp, flags);
+
+    if (idx < 0)
+        return NULL;
+
+    return &st->internal->index_entries[idx];
+}
+
 static int64_t ff_read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit,
                                  int64_t (*read_timestamp)(struct AVFormatContext *, int , int64_t *, int64_t ))
 {
@@ -2377,7 +2381,7 @@ static int seek_frame_generic(AVFormatContext *s, int stream_index,
         return -1;
 
     if (index < 0 || index == st->internal->nb_index_entries - 1) {
-        AVPacket pkt;
+        AVPacket *pkt = s->internal->pkt;
         int nonkey = 0;
 
         if (st->internal->nb_index_entries) {
@@ -2390,25 +2394,26 @@ static int seek_frame_generic(AVFormatContext *s, int stream_index,
             if ((ret = avio_seek(s->pb, s->internal->data_offset, SEEK_SET)) < 0)
                 return ret;
         }
+        av_packet_unref(pkt);
         for (;;) {
             int read_status;
             do {
-                read_status = av_read_frame(s, &pkt);
+                read_status = av_read_frame(s, pkt);
             } while (read_status == AVERROR(EAGAIN));
             if (read_status < 0)
                 break;
-            if (stream_index == pkt.stream_index && pkt.dts > timestamp) {
-                if (pkt.flags & AV_PKT_FLAG_KEY) {
-                    av_packet_unref(&pkt);
+            if (stream_index == pkt->stream_index && pkt->dts > timestamp) {
+                if (pkt->flags & AV_PKT_FLAG_KEY) {
+                    av_packet_unref(pkt);
                     break;
                 }
                 if (nonkey++ > 1000 && st->codecpar->codec_id != AV_CODEC_ID_CDGRAPHICS) {
                     av_log(s, AV_LOG_ERROR,"seek_frame_generic failed as this stream seems to contain no keyframes after the target timestamp, %d non keyframes found\n", nonkey);
-                    av_packet_unref(&pkt);
+                    av_packet_unref(pkt);
                     break;
                 }
             }
-            av_packet_unref(&pkt);
+            av_packet_unref(pkt);
         }
         index = av_index_search_timestamp(st, timestamp, flags);
     }
@@ -2756,7 +2761,7 @@ static void estimate_timings_from_bit_rate(AVFormatContext *ic)
 /* only usable for MPEG-PS streams */
 static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
 {
-    AVPacket pkt1, *pkt = &pkt1;
+    AVPacket *pkt = ic->internal->pkt;
     AVStream *st;
     int num, den, read_size, i, ret;
     int found_duration = 0;
@@ -2932,23 +2937,19 @@ static void estimate_timings(AVFormatContext *ic, int64_t old_offset)
     }
     update_stream_timings(ic);
 
-    {
-        int i;
-        AVStream av_unused *st;
-        for (i = 0; i < ic->nb_streams; i++) {
-            st = ic->streams[i];
-            if (st->time_base.den)
-                av_log(ic, AV_LOG_TRACE, "stream %d: start_time: %s duration: %s\n", i,
-                       av_ts2timestr(st->start_time, &st->time_base),
-                       av_ts2timestr(st->duration, &st->time_base));
-        }
-        av_log(ic, AV_LOG_TRACE,
-               "format: start_time: %s duration: %s (estimate from %s) bitrate=%"PRId64" kb/s\n",
-               av_ts2timestr(ic->start_time, &AV_TIME_BASE_Q),
-               av_ts2timestr(ic->duration, &AV_TIME_BASE_Q),
-               duration_estimate_name(ic->duration_estimation_method),
-               (int64_t)ic->bit_rate / 1000);
+    for (unsigned i = 0; i < ic->nb_streams; i++) {
+        AVStream *st = ic->streams[i];
+        if (st->time_base.den)
+            av_log(ic, AV_LOG_TRACE, "stream %u: start_time: %s duration: %s\n", i,
+                   av_ts2timestr(st->start_time, &st->time_base),
+                   av_ts2timestr(st->duration, &st->time_base));
     }
+    av_log(ic, AV_LOG_TRACE,
+           "format: start_time: %s duration: %s (estimate from %s) bitrate=%"PRId64" kb/s\n",
+           av_ts2timestr(ic->start_time, &AV_TIME_BASE_Q),
+           av_ts2timestr(ic->duration, &AV_TIME_BASE_Q),
+           duration_estimate_name(ic->duration_estimation_method),
+           (int64_t)ic->bit_rate / 1000);
 }
 
 static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
@@ -3402,7 +3403,8 @@ void ff_rfps_calculate(AVFormatContext *ic)
         // the check for tb_unreliable() is not completely correct, since this is not about handling
         // an unreliable/inexact time base, but a time base that is finer than necessary, as e.g.
         // ipmovie.c produces.
-        if (tb_unreliable(st->internal->avctx) && st->internal->info->duration_count > 15 && st->internal->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num)
+        if (tb_unreliable(st->internal->avctx) && st->internal->info->duration_count > 15 && st->internal->info->duration_gcd > FFMAX(1, st->time_base.den/(500LL*st->time_base.num)) && !st->r_frame_rate.num &&
+            st->internal->info->duration_gcd < INT64_MAX / st->time_base.num)
             av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den, st->time_base.den, st->time_base.num * st->internal->info->duration_gcd, INT_MAX);
         if (st->internal->info->duration_count>1 && !st->r_frame_rate.num
             && tb_unreliable(st->internal->avctx)) {
@@ -3489,13 +3491,9 @@ static int extract_extradata_init(AVStream *st)
     if (!ret)
         goto finish;
 
-    sti->extract_extradata.pkt = av_packet_alloc();
-    if (!sti->extract_extradata.pkt)
-        return AVERROR(ENOMEM);
-
     ret = av_bsf_alloc(f, &sti->extract_extradata.bsf);
     if (ret < 0)
-        goto fail;
+        return ret;
 
     ret = avcodec_parameters_copy(sti->extract_extradata.bsf->par_in,
                                   st->codecpar);
@@ -3514,14 +3512,13 @@ finish:
     return 0;
 fail:
     av_bsf_free(&sti->extract_extradata.bsf);
-    av_packet_free(&sti->extract_extradata.pkt);
     return ret;
 }
 
-static int extract_extradata(AVStream *st, const AVPacket *pkt)
+static int extract_extradata(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
 {
     AVStreamInternal *sti = st->internal;
-    AVPacket *pkt_ref;
+    AVPacket *pkt_ref = s->internal->parse_pkt;
     int ret;
 
     if (!sti->extract_extradata.inited) {
@@ -3533,7 +3530,6 @@ static int extract_extradata(AVStream *st, const AVPacket *pkt)
     if (sti->extract_extradata.inited && !sti->extract_extradata.bsf)
         return 0;
 
-    pkt_ref = sti->extract_extradata.pkt;
     ret = av_packet_ref(pkt_ref, pkt);
     if (ret < 0)
         return ret;
@@ -3589,7 +3585,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
     int64_t read_size;
     AVStream *st;
     AVCodecContext *avctx;
-    AVPacket pkt1;
+    AVPacket *pkt1 = ic->internal->pkt;
     int64_t old_offset  = avio_tell(ic->pb);
     // new streams might appear, no options for those
     int orig_nb_streams = ic->nb_streams;
@@ -3683,16 +3679,10 @@ FF_ENABLE_DEPRECATION_WARNINGS
         if (ic->codec_whitelist)
             av_dict_set(options ? &options[i] : &thread_opt, "codec_whitelist", ic->codec_whitelist, 0);
 
-        /* Ensure that subtitle_header is properly set. */
-        if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE
-            && codec && !avctx->codec) {
-            if (avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
-                av_log(ic, AV_LOG_WARNING,
-                       "Failed to open codec in %s\n",__FUNCTION__);
-        }
-
         // Try to just open decoders, in case this is enough to get parameters.
-        if (!has_codec_parameters(st, NULL) && st->internal->request_probe <= 0) {
+        // Also ensure that subtitle_header is properly set.
+        if (!has_codec_parameters(st, NULL) && st->internal->request_probe <= 0 ||
+            st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
             if (codec && !avctx->codec)
                 if (avcodec_open2(avctx, codec, options ? &options[i] : &thread_opt) < 0)
                     av_log(ic, AV_LOG_WARNING,
@@ -3796,7 +3786,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
         /* NOTE: A new stream can be added there if no header in file
          * (AVFMTCTX_NOHEADER). */
-        ret = read_frame_internal(ic, &pkt1);
+        ret = read_frame_internal(ic, pkt1);
         if (ret == AVERROR(EAGAIN))
             continue;
 
@@ -3809,13 +3799,13 @@ FF_ENABLE_DEPRECATION_WARNINGS
         if (!(ic->flags & AVFMT_FLAG_NOBUFFER)) {
             ret = avpriv_packet_list_put(&ic->internal->packet_buffer,
                                      &ic->internal->packet_buffer_end,
-                                     &pkt1, NULL, 0);
+                                     pkt1, NULL, 0);
             if (ret < 0)
                 goto unref_then_goto_end;
 
             pkt = &ic->internal->packet_buffer_end->pkt;
         } else {
-            pkt = &pkt1;
+            pkt = pkt1;
         }
 
         st = ic->streams[pkt->stream_index];
@@ -3895,7 +3885,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                        limit,
                        t, pkt->stream_index);
                 if (ic->flags & AVFMT_FLAG_NOBUFFER)
-                    av_packet_unref(&pkt1);
+                    av_packet_unref(pkt1);
                 break;
             }
             if (pkt->duration) {
@@ -3914,7 +3904,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                 st->internal->info->frame_delay_evidence = 1;
         }
         if (!st->internal->avctx->extradata) {
-            ret = extract_extradata(st, pkt);
+            ret = extract_extradata(ic, st, pkt);
             if (ret < 0)
                 goto unref_then_goto_end;
         }
@@ -3932,7 +3922,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                          (options && i < orig_nb_streams) ? &options[i] : NULL);
 
         if (ic->flags & AVFMT_FLAG_NOBUFFER)
-            av_packet_unref(&pkt1);
+            av_packet_unref(pkt1);
 
         st->codec_info_nb_frames++;
         count++;
@@ -3965,9 +3955,9 @@ FF_ENABLE_DEPRECATION_WARNINGS
     }
 
     if (flush_codecs) {
-        AVPacket empty_pkt = { 0 };
+        AVPacket *empty_pkt = ic->internal->pkt;
         int err = 0;
-        av_init_packet(&empty_pkt);
+        av_packet_unref(empty_pkt);
 
         for (i = 0; i < ic->nb_streams; i++) {
 
@@ -3976,7 +3966,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
             /* flush the decoders */
             if (st->internal->info->found_decoder == 1) {
                 do {
-                    err = try_decode_frame(ic, st, &empty_pkt,
+                    err = try_decode_frame(ic, st, empty_pkt,
                                             (options && i < orig_nb_streams)
                                             ? &options[i] : NULL);
                 } while (err > 0 && !has_codec_parameters(st, NULL));
@@ -4180,7 +4170,6 @@ find_stream_info_err:
         avcodec_close(ic->streams[i]->internal->avctx);
         av_freep(&ic->streams[i]->internal->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",
@@ -4188,7 +4177,7 @@ find_stream_info_err:
     return ret;
 
 unref_then_goto_end:
-    av_packet_unref(&pkt1);
+    av_packet_unref(pkt1);
     goto find_stream_info_err;
 }
 
@@ -4341,18 +4330,6 @@ int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src)
         }
     }
 
-#if FF_API_LAVF_FFSERVER
-FF_DISABLE_DEPRECATION_WARNINGS
-    av_freep(&dst->recommended_encoder_configuration);
-    if (src->recommended_encoder_configuration) {
-        const char *conf_str = src->recommended_encoder_configuration;
-        dst->recommended_encoder_configuration = av_strdup(conf_str);
-        if (!dst->recommended_encoder_configuration)
-            return AVERROR(ENOMEM);
-    }
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-
     return 0;
 }
 
@@ -4382,7 +4359,6 @@ static void free_stream(AVStream **pst)
         av_freep(&st->internal->probe_data.buf);
 
         av_bsf_free(&st->internal->extract_extradata.bsf);
-        av_packet_free(&st->internal->extract_extradata.pkt);
 
         if (st->internal->info)
             av_freep(&st->internal->info->duration_error);
@@ -4398,11 +4374,6 @@ FF_DISABLE_DEPRECATION_WARNINGS
 FF_ENABLE_DEPRECATION_WARNINGS
 #endif
     av_freep(&st->priv_data);
-#if FF_API_LAVF_FFSERVER
-FF_DISABLE_DEPRECATION_WARNINGS
-    av_freep(&st->recommended_encoder_configuration);
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
 
     av_freep(pst);
 }
@@ -4451,6 +4422,8 @@ void avformat_free_context(AVFormatContext *s)
     av_freep(&s->chapters);
     av_dict_free(&s->metadata);
     av_dict_free(&s->internal->id3v2_meta);
+    av_packet_free(&s->internal->pkt);
+    av_packet_free(&s->internal->parse_pkt);
     av_freep(&s->streams);
     flush_packet_queue(s);
     av_freep(&s->internal);
@@ -4492,9 +4465,10 @@ AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
     int i;
     AVStream **streams;
 
-    if (s->nb_streams >= FFMIN(s->max_streams, INT_MAX/sizeof(*streams))) {
-        if (s->max_streams < INT_MAX/sizeof(*streams))
-            av_log(s, AV_LOG_ERROR, "Number of streams exceeds max_streams parameter (%d), see the documentation if you wish to increase it\n", s->max_streams);
+    if (s->nb_streams >= s->max_streams) {
+        av_log(s, AV_LOG_ERROR, "Number of streams exceeds max_streams parameter"
+               " (%d), see the documentation if you wish to increase it\n",
+               s->max_streams);
         return NULL;
     }
     streams = av_realloc_array(s->streams, s->nb_streams + 1, sizeof(*streams));
@@ -4587,7 +4561,7 @@ fail:
 AVProgram *av_new_program(AVFormatContext *ac, int id)
 {
     AVProgram *program = NULL;
-    int i;
+    int i, ret;
 
     av_log(ac, AV_LOG_TRACE, "new_program: id=0x%04x\n", id);
 
@@ -4599,7 +4573,11 @@ AVProgram *av_new_program(AVFormatContext *ac, int id)
         program = av_mallocz(sizeof(AVProgram));
         if (!program)
             return NULL;
-        dynarray_add(&ac->programs, &ac->nb_programs, program);
+        ret = av_dynarray_add_nofree(&ac->programs, &ac->nb_programs, program);
+        if (ret < 0) {
+            av_free(program);
+            return NULL;
+        }
         program->discard = AVDISCARD_NONE;
         program->pmt_version = -1;
         program->id = id;
@@ -4611,11 +4589,11 @@ AVProgram *av_new_program(AVFormatContext *ac, int id)
     return program;
 }
 
-AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base,
+AVChapter *avpriv_new_chapter(AVFormatContext *s, int64_t id, AVRational time_base,
                               int64_t start, int64_t end, const char *title)
 {
     AVChapter *chapter = NULL;
-    int i;
+    int i, ret;
 
     if (end != AV_NOPTS_VALUE && start > end) {
         av_log(s, AV_LOG_ERROR, "Chapter end time %"PRId64" before start %"PRId64"\n", end, start);
@@ -4635,7 +4613,11 @@ AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base,
         chapter = av_mallocz(sizeof(AVChapter));
         if (!chapter)
             return NULL;
-        dynarray_add(&s->chapters, &s->nb_chapters, chapter);
+        ret = av_dynarray_add_nofree(&s->chapters, &s->nb_chapters, chapter);
+        if (ret < 0) {
+            av_free(chapter);
+            return NULL;
+        }
     }
     av_dict_set(&chapter->metadata, "title", title, 0);
     chapter->id        = id;
@@ -4701,6 +4683,15 @@ uint64_t ff_get_formatted_ntp_time(uint64_t ntp_time_us)
     return ntp_ts;
 }
 
+uint64_t ff_parse_ntp_time(uint64_t ntp_ts)
+{
+    uint64_t sec = ntp_ts >> 32;
+    uint64_t frac_part = ntp_ts & 0xFFFFFFFFULL;
+    uint64_t usec = (frac_part * 1000000) / 0xFFFFFFFFULL;
+
+    return (sec * 1000000) + usec;
+}
+
 int av_get_frame_filename2(char *buf, int buf_size, const char *path, int number, int flags)
 {
     const char *p;
@@ -5589,64 +5580,6 @@ int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *a
     return 1;
 }
 
-#if FF_API_OLD_BSF
-FF_DISABLE_DEPRECATION_WARNINGS
-int av_apply_bitstream_filters(AVCodecContext *codec, AVPacket *pkt,
-                               AVBitStreamFilterContext *bsfc)
-{
-    int ret = 0;
-    while (bsfc) {
-        AVPacket new_pkt = *pkt;
-        int a = av_bitstream_filter_filter(bsfc, codec, NULL,
-                                           &new_pkt.data, &new_pkt.size,
-                                           pkt->data, pkt->size,
-                                           pkt->flags & AV_PKT_FLAG_KEY);
-        if (a == 0 && new_pkt.size == 0 && new_pkt.side_data_elems == 0) {
-            av_packet_unref(pkt);
-            memset(pkt, 0, sizeof(*pkt));
-            return 0;
-        }
-        if(a == 0 && new_pkt.data != pkt->data) {
-            uint8_t *t = av_malloc(new_pkt.size + AV_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
-            if (t) {
-                memcpy(t, new_pkt.data, new_pkt.size);
-                memset(t + new_pkt.size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
-                new_pkt.data = t;
-                new_pkt.buf = NULL;
-                a = 1;
-            } else {
-                a = AVERROR(ENOMEM);
-            }
-        }
-        if (a > 0) {
-            new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
-                                           av_buffer_default_free, NULL, 0);
-            if (new_pkt.buf) {
-                pkt->side_data = NULL;
-                pkt->side_data_elems = 0;
-                av_packet_unref(pkt);
-            } else {
-                av_freep(&new_pkt.data);
-                a = AVERROR(ENOMEM);
-            }
-        }
-        if (a < 0) {
-            av_log(codec, AV_LOG_ERROR,
-                   "Failed to open bitstream filter %s for stream %d with codec %s",
-                   bsfc->filter->name, pkt->stream_index,
-                   codec->codec ? codec->codec->name : "copy");
-            ret = a;
-            break;
-        }
-        *pkt = new_pkt;
-
-        bsfc = bsfc->next;
-    }
-    return ret;
-}
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
-
 int ff_format_output_open(AVFormatContext *s, const char *url, AVDictionary **options)
 {
     if (!s->oformat)
@@ -5806,9 +5739,6 @@ FF_ENABLE_DEPRECATION_WARNINGS
         enc_ctx->time_base = dec_ctx->time_base;
     }
 
-    if (ost->avg_frame_rate.num)
-        enc_ctx->time_base = av_inv_q(ost->avg_frame_rate);
-
     av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den,
               enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX);
 
@@ -5832,9 +5762,4 @@ void ff_format_set_url(AVFormatContext *s, char *url)
     av_assert0(url);
     av_freep(&s->url);
     s->url = url;
-#if FF_API_FORMAT_FILENAME
-FF_DISABLE_DEPRECATION_WARNINGS
-    av_strlcpy(s->filename, url, sizeof(s->filename));
-FF_ENABLE_DEPRECATION_WARNINGS
-#endif
 }