Changes in 1.2

• VDPAU hardware acceleration through normal hwaccel
• SRTP support
• Error diffusion dither in Swscale
• Chained Ogg support
• Theora Midstream reconfiguration support
• EVRC decoder
• audio fade filter
• filtering audio with unknown channel layout
• allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass and treble audio filter
• improved showspectrum filter, with multichannel support and sox-like colors
• histogram filter
• tee muxer
• il filter ported from libmpcodecs
• support ID3v2 tags in ASF files
• encrypted TTA stream decoding support
• RF64 support in WAV muxer
• noise filter ported from libmpcodecs
• Subtitles character encoding conversion
• blend filter
• stereo3d filter ported from libmpcodecs