shithub: libvpx

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Merge "webmdec: Fix read_frame return value for calls after EOS"

--- a/webmdec.cc

+++ b/webmdec.cc

@@ -63,6 +63,7 @@

                  struct VpxInputContext *vpx_ctx) {

   mkvparser::MkvReader *const reader = new mkvparser::MkvReader(vpx_ctx->file);

   webm_ctx->reader = reader;

+  webm_ctx->reached_eos = 0;

   mkvparser::EBMLHeader header;

   long long pos = 0;

@@ -121,6 +122,11 @@

                     uint8_t **buffer,

                     size_t *bytes_in_buffer,

                     size_t *buffer_size) {

+  // This check is needed for frame parallel decoding, in which case this

+  // function could be called even after it has reached end of input stream.

+  if (webm_ctx->reached_eos) {

+    return 1;

+  }

   mkvparser::Segment *const segment =

       reinterpret_cast<mkvparser::Segment*>(webm_ctx->segment);

   const mkvparser::Cluster* cluster =

@@ -140,6 +146,7 @@

       cluster = segment->GetNext(cluster);

       if (cluster == NULL || cluster->EOS()) {

         *bytes_in_buffer = 0;

+        webm_ctx->reached_eos = 1;

         return 1;

       }

       status = cluster->GetFirst(block_entry);

--- a/webmdec.h

+++ b/webmdec.h

@@ -29,6 +29,7 @@

   int video_track_index;

   uint64_t timestamp_ns;

   int is_key_frame;

+  int reached_eos;

 };

 // Checks if the input is a WebM file. If so, initializes WebMInputContext so