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authorStephen Hutchinson <qyot27@gmail.com>2013-08-16 17:29:55 -0400
committerMichael Niedermayer <michaelni@gmx.at>2013-08-17 14:27:25 +0200
commit2c25e83b1d022ab36842d77749024b3d720a4227 (patch)
treeb99e190959a3ff43b6caa4307cd6922474fa9026 /compat
parent9640ea1da4e0893001031c6d88aa48f350cc9956 (diff)
downloadffmpeg-streaming-2c25e83b1d022ab36842d77749024b3d720a4227.zip
ffmpeg-streaming-2c25e83b1d022ab36842d77749024b3d720a4227.tar.gz
avisynth: Support video input from AviSynth 2.5 properly.
Uses the 2.5 compatibility header included with the variant of FFMS2 that uses AviSynth's C-interface. A copy of this header is now provided in compat/avisynth. avs_get_row_size_p and avs_get_height_p changed between versions 2.5 and 2.6. Since the avisynth_c.h header that avformat uses assumes AviSynth 2.6, it would cause 2.5 to crash if given any kind of real video (the Version() function was known to work, though). AvxSynth was unaffected by this issue because, despite being based on AviSynth 2.5.8 and using 2.5.8's interface version number of 3, it actually uses 2.6's versions of these functions. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'compat')
-rw-r--r--compat/avisynth/avisynth_c_25.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/compat/avisynth/avisynth_c_25.h b/compat/avisynth/avisynth_c_25.h
new file mode 100644
index 0000000..9288761
--- /dev/null
+++ b/compat/avisynth/avisynth_c_25.h
@@ -0,0 +1,68 @@
+// Copyright (c) 2011 FFmpegSource Project
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+/* these are defines/functions that are used and were changed in the switch to 2.6
+ * and are needed to maintain full compatility with 2.5 */
+
+enum {
+ AVS_CS_YV12_25 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
+ AVS_CS_I420_25 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
+};
+
+AVSC_INLINE int avs_get_height_p_25(const AVS_VideoFrame * p, int plane) {
+ switch (plane)
+ {
+ case AVS_PLANAR_U: case AVS_PLANAR_V:
+ if (p->pitchUV)
+ return p->height>>1;
+ return 0;
+ }
+ return p->height;}
+
+AVSC_INLINE int avs_get_row_size_p_25(const AVS_VideoFrame * p, int plane) {
+ int r;
+ switch (plane)
+ {
+ case AVS_PLANAR_U: case AVS_PLANAR_V:
+ if (p->pitchUV)
+ return p->row_size>>1;
+ else
+ return 0;
+ case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
+ if (p->pitchUV)
+ {
+ r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
+ if (r < p->pitchUV)
+ return r;
+ return p->row_size>>1;
+ }
+ else
+ return 0;
+ case AVS_PLANAR_Y_ALIGNED:
+ r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
+ if (r <= p->pitch)
+ return r;
+ return p->row_size;
+ }
+ return p->row_size;
+}
+
+AVSC_INLINE int avs_is_yv12_25(const AVS_VideoInfo * p)
+ { return ((p->pixel_type & AVS_CS_YV12_25) == AVS_CS_YV12_25)||((p->pixel_type & AVS_CS_I420_25) == AVS_CS_I420_25); }
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