Earlier, sc->samples_per_frame was used for setting the frame size, but all files don't have that set properly. The frame size is a known constant for these codecs. If frame_size isn't set, the mov/3gp muxer refuses to mux it. This fixes stream copy of audio from https://roundup.libav.org/file1248/Video_With_AMR-NB_Audio.3gp to another 3gp file (roundup issue 2468). Signed-off-by: Martin Storsjö <martin@martin.st>
Libav README ------------ 1) Documentation ---------------- * Read the documentation in the doc/ directory. 2) Licensing ------------ * See the LICENSE file.
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