Merge commit 'b5849f77095439e994b11c25e6063d443b36c228'

* commit 'b5849f77095439e994b11c25e6063d443b36c228': (21 commits)
  ac3enc: merge AC3MDCTContext with AC3EncodeContext.
  ac3enc: prefer passing AC3EncodeContext rather than AVCodecContext
  ac3enc: fix memleak
  mpeg1video: add CODEC_CAP_SLICE_THREADS.
  lavf: fix segfault in av_open_input_stream()
  mpegtsenc: set Random Access indicator on keyframe start packets
  lavf: Cleanup try_decode_frame() logic.
  Replace some gotos that lead to single return statements by direct return.
  build: move tests/seek_test.c to libavformat and reuse generic build rules
  mxfenc: include needed header for ff_iso8601_to_unix_time() prototype
  Add a check for strptime().
  lavf: factor out conversion of ISO8601 string to unix time
  wav: parse 'bext' metadata
  wav: keep parsing until EOF if the input is seekable and we know the size of the data tag
  wav: Refactor the tag checking into a switch statement
  wav: make sure neither data_size nor sample_count is negative.
  wav: refactor the 'fmt ' tag search and parsing.
  wav: add an option for writing BEXT chunk
  ffmpeg: get rid of a pointless limit on number of streams.
  ffmpeg: remove an unused define.
  ...

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

1 files changed, 18 insertions, 7 deletions

diff --git a/libavformat/utils.c b/libavformat/utils.c
index b9a4ebab9d..3d949baf24 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -471,7 +471,8 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
     else
         ic->pb = pb;
 
-    err = avformat_open_input(&ic, filename, fmt, &opts);
+    if ((err = avformat_open_input(&ic, filename, fmt, &opts)) < 0)
+        goto fail;
     ic->pb = ic->pb ? ic->pb : pb; // don't leak custom pb if it wasn't set above
 
     *ic_ptr = ic;
@@ -2129,7 +2130,8 @@ static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **option
             return ret;
     }
 
-    if(!has_codec_parameters(st->codec) || !has_decode_delay_been_guessed(st)){
+    if(!has_codec_parameters(st->codec) || !has_decode_delay_been_guessed(st) ||
+       (!st->codec_info_nb_frames && st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF)) {
         switch(st->codec->codec_type) {
         case AVMEDIA_TYPE_VIDEO:
             avcodec_get_frame_defaults(&picture);
@@ -2436,11 +2438,7 @@ int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options)
            least one frame of codec data, this makes sure the codec initializes
            the channel configuration and does not only trust the values from the container.
         */
-        if (!has_codec_parameters(st->codec) ||
-            !has_decode_delay_been_guessed(st) ||
-            (st->codec->codec &&
-             st->codec->codec->capabilities & CODEC_CAP_CHANNEL_CONF))
-            try_decode_frame(st, pkt, (options && i <= orig_nb_streams )? &options[i] : NULL);
+        try_decode_frame(st, pkt, (options && i <= orig_nb_streams )? &options[i] : NULL);
 
         st->codec_info_nb_frames++;
         count++;
@@ -4012,3 +4010,16 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
     }
     av_strlcat(buf, rel, size);
 }
+
+int64_t ff_iso8601_to_unix_time(const char *datestr)
+{
+#if HAVE_STRPTIME
+    struct tm time = {0};
+    strptime(datestr, "%Y - %m - %dT%T", &time);
+    return mktime(&time);
+#else
+    av_log(NULL, AV_LOG_WARNING, "strptime() unavailable on this system, cannot convert "
+                                 "the date string.\n");
+    return 0;
+#endif
+}