ffmpeg: switch to codecpar

This commit is largely based on commit 15e84ed3 from Anton Khirnov
<anton@khirnov.net> which was previously skipped in bbf5ef9d.

There are still a bunch of things raising codecpar related warnings that
need fixing, such as:
- the use of codec->debug in the interactive debug mode
- read_ffserver_streams(): it's probably broken now but there is no test
- lowres stuff
- codec copy apparently required by bitstream filters

The matroska references are updated because they now properly forward
the field_order (previously unknown, now progressive).

Thanks to James Almer for fixing a bunch of FATE issues in this commit.

Signed-off-by: Clément Bœsch <clement@stupeflix.com>
Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/ffmpeg.h b/ffmpeg.h
index 49d65d8461..5caf584c7d 100644
--- a/ffmpeg.h
+++ b/ffmpeg.h
@@ -418,6 +418,7 @@ typedef struct OutputStream {
     int64_t last_mux_dts;
     AVBitStreamFilterContext *bitstream_filters;
     AVCodecContext *enc_ctx;
+    AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
     AVCodec *enc;
     int64_t max_frames;
     AVFrame *filtered_frame;