avcodec: Add avcodec_encode_audio2() as replacement for avcodec_encode_audio()

This allows audio encoders to optionally take an AVFrame as input and write
encoded output to an AVPacket.

This also adds AVCodec.encode2() which will also be usable by video and
subtitle encoders once support is implemented in the public functions.

1 files changed, 1 insertions, 0 deletions

diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c
index 32231125d2..190f027adc 100644
--- a/libavcodec/pcm.c
+++ b/libavcodec/pcm.c
@@ -474,6 +474,7 @@ AVCodec ff_ ## name_ ## _encoder = {            \
     .init        = pcm_encode_init,             \
     .encode      = pcm_encode_frame,            \
     .close       = pcm_encode_close,            \
+    .capabilities = CODEC_CAP_VARIABLE_FRAME_SIZE, \
     .sample_fmts = (const enum AVSampleFormat[]){sample_fmt_,AV_SAMPLE_FMT_NONE}, \
     .long_name = NULL_IF_CONFIG_SMALL(long_name_), \
 }