X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Futils.c;h=7abca632b56ff4f7a559f0e1a768f3c614c453eb;hb=5a9415533dd064d44605b3a3896a53377b7a5ca8;hp=ba82a766dc50b658ff44fc27086491ce9a2337a9;hpb=18e2a446c52b0a5cb520f9b68d8fd4171a5f6471;p=ffmpeg

diff --git a/libavformat/utils.c b/libavformat/utils.c
index ba82a766dc5..7abca632b56 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -533,6 +533,7 @@ int avformat_open_input(AVFormatContext **ps, const char *filename,
     if ((ret = av_opt_set_dict(s, &tmp)) < 0)
         goto fail;
 
+    av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
     if ((ret = init_input(s, filename, &tmp)) < 0)
         goto fail;
     s->probe_score = ret;
@@ -570,7 +571,6 @@ int avformat_open_input(AVFormatContext **ps, const char *filename,
     }
 
     s->duration = s->start_time = AV_NOPTS_VALUE;
-    av_strlcpy(s->filename, filename ? filename : "", sizeof(s->filename));
 
     /* Allocate private data. */
     if (s->iformat->priv_data_size > 0) {
@@ -894,12 +894,13 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
 
 static int determinable_frame_size(AVCodecContext *avctx)
 {
-    if (/*avctx->codec_id == AV_CODEC_ID_AAC ||*/
-        avctx->codec_id == AV_CODEC_ID_MP1 ||
-        avctx->codec_id == AV_CODEC_ID_MP2 ||
-        avctx->codec_id == AV_CODEC_ID_MP3/* ||
-        avctx->codec_id == AV_CODEC_ID_CELT*/)
+    switch(avctx->codec_id) {
+    case AV_CODEC_ID_MP1:
+    case AV_CODEC_ID_MP2:
+    case AV_CODEC_ID_MP3:
         return 1;
+    }
+
     return 0;
 }
 
@@ -3166,7 +3167,7 @@ static void compute_chapters_end(AVFormatContext *s)
                 if (j != i && next_start > ch->start && next_start < end)
                     end = next_start;
             }
-            ch->end = (end == INT64_MAX) ? ch->start : end;
+            ch->end = (end == INT64_MAX || end < ch->start) ? ch->start : end;
         }
 }
 
@@ -3903,6 +3904,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
                 st->info->codec_info_duration) {
                 int best_fps      = 0;
                 double best_error = 0.01;
+                AVRational codec_frame_rate = avctx->framerate;
 
                 if (st->info->codec_info_duration        >= INT64_MAX / st->time_base.num / 2||
                     st->info->codec_info_duration_fields >= INT64_MAX / st->time_base.den ||
@@ -3923,6 +3925,15 @@ FF_ENABLE_DEPRECATION_WARNINGS
                         best_error = error;
                         best_fps   = std_fps.num;
                     }
+
+                    if (ic->internal->prefer_codec_framerate && codec_frame_rate.num > 0 && codec_frame_rate.den > 0) {
+                        error       = fabs(av_q2d(codec_frame_rate) /
+                                           av_q2d(std_fps) - 1);
+                        if (error < best_error) {
+                            best_error = error;
+                            best_fps   = std_fps.num;
+                        }
+                    }
                 }
                 if (best_fps)
                     av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
@@ -3932,8 +3943,8 @@ FF_ENABLE_DEPRECATION_WARNINGS
             if (!st->r_frame_rate.num) {
                 if (    avctx->time_base.den * (int64_t) st->time_base.num
                     <= avctx->time_base.num * avctx->ticks_per_frame * (int64_t) st->time_base.den) {
-                    st->r_frame_rate.num = avctx->time_base.den;
-                    st->r_frame_rate.den = avctx->time_base.num * avctx->ticks_per_frame;
+                    av_reduce(&st->r_frame_rate.num, &st->r_frame_rate.den,
+                              avctx->time_base.den, (int64_t)avctx->time_base.num * avctx->ticks_per_frame, INT_MAX);
                 } else {
                     st->r_frame_rate.num = st->time_base.den;
                     st->r_frame_rate.den = st->time_base.num;
@@ -4097,7 +4108,11 @@ int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type,
                         AVCodec **decoder_ret, int flags)
 {
     int i, nb_streams = ic->nb_streams;
-    int ret = AVERROR_STREAM_NOT_FOUND, best_count = -1, best_bitrate = -1, best_multiframe = -1, count, bitrate, multiframe;
+    int ret = AVERROR_STREAM_NOT_FOUND;
+    int best_count = -1, best_multiframe = -1, best_disposition = -1;
+    int count, multiframe, disposition;
+    int64_t best_bitrate = -1;
+    int64_t bitrate;
     unsigned *program = NULL;
     const AVCodec *decoder = NULL, *best_decoder = NULL;
 
@@ -4116,10 +4131,6 @@ int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type,
             continue;
         if (wanted_stream_nb >= 0 && real_stream_index != wanted_stream_nb)
             continue;
-        if (wanted_stream_nb != real_stream_index &&
-            st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED |
-                               AV_DISPOSITION_VISUAL_IMPAIRED))
-            continue;
         if (type == AVMEDIA_TYPE_AUDIO && !(par->channels && par->sample_rate))
             continue;
         if (decoder_ret) {
@@ -4130,13 +4141,16 @@ int av_find_best_stream(AVFormatContext *ic, enum AVMediaType type,
                 continue;
             }
         }
+        disposition = !(st->disposition & (AV_DISPOSITION_HEARING_IMPAIRED | AV_DISPOSITION_VISUAL_IMPAIRED));
         count = st->codec_info_nb_frames;
         bitrate = par->bit_rate;
         multiframe = FFMIN(5, count);
-        if ((best_multiframe >  multiframe) ||
-            (best_multiframe == multiframe && best_bitrate >  bitrate) ||
-            (best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
+        if ((best_disposition >  disposition) ||
+            (best_disposition == disposition && best_multiframe >  multiframe) ||
+            (best_disposition == disposition && best_multiframe == multiframe && best_bitrate >  bitrate) ||
+            (best_disposition == disposition && best_multiframe == multiframe && best_bitrate == bitrate && best_count >= count))
             continue;
+        best_disposition = disposition;
         best_count   = count;
         best_bitrate = bitrate;
         best_multiframe = multiframe;
@@ -4266,9 +4280,7 @@ static void free_stream(AVStream **pst)
     av_freep(&st->index_entries);
 #if FF_API_LAVF_AVCTX
 FF_DISABLE_DEPRECATION_WARNINGS
-    av_freep(&st->codec->extradata);
-    av_freep(&st->codec->subtitle_header);
-    av_freep(&st->codec);
+    avcodec_free_context(&st->codec);
 FF_ENABLE_DEPRECATION_WARNINGS
 #endif
     av_freep(&st->priv_data);
@@ -4321,8 +4333,8 @@ void avformat_free_context(AVFormatContext *s)
     av_dict_free(&s->metadata);
     av_dict_free(&s->internal->id3v2_meta);
     av_freep(&s->streams);
-    av_freep(&s->internal);
     flush_packet_queue(s);
+    av_freep(&s->internal);
     av_free(s);
 }