Merge remote-tracking branch 'qatar/master'

* qatar/master: (27 commits)
  libxvid: Give more suitable names to libxvid-related files.
  libxvid: Separate libxvid encoder from libxvid rate control code.
  jpeglsdec: Remove write-only variable in ff_jpegls_decode_lse().
  fate: cosmetics: lowercase some comments
  fate: Give more consistent names to some RealVideo/RealAudio tests.
  lavfi: add avfilter_get_audio_buffer_ref_from_arrays().
  lavfi: add extended_data to AVFilterBuffer.
  lavc: check that extended_data is properly set in avcodec_encode_audio2().
  lavc: pad last audio frame with silence when needed.
  samplefmt: add a function for filling a buffer with silence.
  samplefmt: add a function for copying audio samples.
  lavr: do not try to copy to uninitialized output audio data.
  lavr: make avresample_read() with NULL output discard samples.
  fate: split idroq audio and video into separate tests
  fate: improve dependencies
  fate: add convenient shorthands for ea-vp6, libavcodec, libavutil tests
  fate: split some combined tests into separate audio and video tests
  fate: fix dependencies for probe tests
  mips: intreadwrite: fix inline asm for gcc 4.8
  mips: intreadwrite: remove unnecessary inline asm
  ...

Conflicts:
	cmdutils.h
	configure
	doc/APIchanges
	doc/filters.texi
	ffmpeg.c
	ffplay.c
	libavcodec/internal.h
	libavcodec/jpeglsdec.c
	libavcodec/libschroedingerdec.c
	libavcodec/libxvid.c
	libavcodec/libxvid_rc.c
	libavcodec/utils.c
	libavcodec/version.h
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersink.h
	tests/Makefile
	tests/fate/aac.mak
	tests/fate/audio.mak
	tests/fate/demux.mak
	tests/fate/ea.mak
	tests/fate/image.mak
	tests/fate/libavutil.mak
	tests/fate/lossless-audio.mak
	tests/fate/lossless-video.mak
	tests/fate/microsoft.mak
	tests/fate/qt.mak
	tests/fate/real.mak
	tests/fate/screen.mak
	tests/fate/video.mak
	tests/fate/voice.mak
	tests/fate/vqf.mak
	tests/ref/fate/ea-mad
	tests/ref/fate/ea-tqi

Merged-by: Michael Niedermayer <michaelni@gmx.at>

3 files changed, 72 insertions, 59 deletions

diff --git a/libavutil/mips/intreadwrite.h b/libavutil/mips/intreadwrite.h
index cd4a9a9a67..9ba0491372 100644
--- a/libavutil/mips/intreadwrite.h
+++ b/libavutil/mips/intreadwrite.h
@@ -24,75 +24,23 @@
 #include <stdint.h>
 #include "config.h"
 
-#if HAVE_INLINE_ASM
+#if ARCH_MIPS64 && HAVE_INLINE_ASM
 
 #define AV_RN32 AV_RN32
 static av_always_inline uint32_t AV_RN32(const void *p)
 {
+    struct __attribute__((packed)) u32 { uint32_t v; };
+    const uint8_t *q = p;
+    const struct u32 *pl = (const struct u32 *)(q + 3 * !HAVE_BIGENDIAN);
+    const struct u32 *pr = (const struct u32 *)(q + 3 *  HAVE_BIGENDIAN);
     uint32_t v;
     __asm__ ("lwl %0, %1  \n\t"
              "lwr %0, %2  \n\t"
              : "=&r"(v)
-             : "m"(*(const uint32_t *)((const uint8_t *)p+3*!HAVE_BIGENDIAN)),
-               "m"(*(const uint32_t *)((const uint8_t *)p+3*HAVE_BIGENDIAN)));
+             : "m"(*pl), "m"(*pr));
     return v;
 }
 
-#define AV_WN32 AV_WN32
-static av_always_inline void AV_WN32(void *p, uint32_t v)
-{
-    __asm__ ("swl %2, %0  \n\t"
-             "swr %2, %1  \n\t"
-             : "=m"(*(uint32_t *)((uint8_t *)p+3*!HAVE_BIGENDIAN)),
-               "=m"(*(uint32_t *)((uint8_t *)p+3*HAVE_BIGENDIAN))
-             : "r"(v));
-}
-
-#if ARCH_MIPS64
-
-#define AV_RN64 AV_RN64
-static av_always_inline uint64_t AV_RN64(const void *p)
-{
-    uint64_t v;
-    __asm__ ("ldl %0, %1  \n\t"
-             "ldr %0, %2  \n\t"
-             : "=&r"(v)
-             : "m"(*(const uint64_t *)((const uint8_t *)p+7*!HAVE_BIGENDIAN)),
-               "m"(*(const uint64_t *)((const uint8_t *)p+7*HAVE_BIGENDIAN)));
-    return v;
-}
-
-#define AV_WN64 AV_WN64
-static av_always_inline void AV_WN64(void *p, uint64_t v)
-{
-    __asm__ ("sdl %2, %0  \n\t"
-             "sdr %2, %1  \n\t"
-             : "=m"(*(uint64_t *)((uint8_t *)p+7*!HAVE_BIGENDIAN)),
-               "=m"(*(uint64_t *)((uint8_t *)p+7*HAVE_BIGENDIAN))
-             : "r"(v));
-}
-
-#else
-
-#define AV_RN64 AV_RN64
-static av_always_inline uint64_t AV_RN64(const void *p)
-{
-    union { uint64_t v; uint32_t hl[2]; } v;
-    v.hl[0] = AV_RN32(p);
-    v.hl[1] = AV_RN32((const uint8_t *)p + 4);
-    return v.v;
-}
-
-#define AV_WN64 AV_WN64
-static av_always_inline void AV_WN64(void *p, uint64_t v)
-{
-    union { uint64_t v; uint32_t hl[2]; } vv = { v };
-    AV_WN32(p, vv.hl[0]);
-    AV_WN32((uint8_t *)p + 4, vv.hl[1]);
-}
-
-#endif /* ARCH_MIPS64 */
-
-#endif /* HAVE_INLINE_ASM */
+#endif /* ARCH_MIPS64 && HAVE_INLINE_ASM */
 
 #endif /* AVUTIL_MIPS_INTREADWRITE_H */
diff --git a/libavutil/samplefmt.c b/libavutil/samplefmt.c
index 560c7f5cd5..ae192ff3d4 100644
--- a/libavutil/samplefmt.c
+++ b/libavutil/samplefmt.c
@@ -194,3 +194,41 @@ int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
     }
     return 0;
 }
+
+int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
+                    int src_offset, int nb_samples, int nb_channels,
+                    enum AVSampleFormat sample_fmt)
+{
+    int planar      = av_sample_fmt_is_planar(sample_fmt);
+    int planes      = planar ? nb_channels : 1;
+    int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+    int data_size   = nb_samples * block_align;
+    int i;
+
+    dst_offset *= block_align;
+    src_offset *= block_align;
+
+    for (i = 0; i < planes; i++)
+        memcpy(dst[i] + dst_offset, src[i] + src_offset, data_size);
+
+    return 0;
+}
+
+int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
+                           int nb_channels, enum AVSampleFormat sample_fmt)
+{
+    int planar      = av_sample_fmt_is_planar(sample_fmt);
+    int planes      = planar ? nb_channels : 1;
+    int block_align = av_get_bytes_per_sample(sample_fmt) * (planar ? 1 : nb_channels);
+    int data_size   = nb_samples * block_align;
+    int fill_char   = (sample_fmt == AV_SAMPLE_FMT_U8 ||
+                     sample_fmt == AV_SAMPLE_FMT_U8P) ? 0x80 : 0x00;
+    int i;
+
+    offset *= block_align;
+
+    for (i = 0; i < planes; i++)
+        memset(audio_data[i] + offset, fill_char, data_size);
+
+    return 0;
+}
diff --git a/libavutil/samplefmt.h b/libavutil/samplefmt.h
index fa55efe78a..4ce606d975 100644
--- a/libavutil/samplefmt.h
+++ b/libavutil/samplefmt.h
@@ -202,4 +202,31 @@ int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
 int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
                      int nb_samples, enum AVSampleFormat sample_fmt, int align);
 
+/**
+ * Copy samples from src to dst.
+ *
+ * @param dst destination array of pointers to data planes
+ * @param src source array of pointers to data planes
+ * @param dst_offset offset in samples at which the data will be written to dst
+ * @param src_offset offset in samples at which the data will be read from src
+ * @param nb_samples number of samples to be copied
+ * @param nb_channels number of audio channels
+ * @param sample_fmt audio sample format
+ */
+int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
+                    int src_offset, int nb_samples, int nb_channels,
+                    enum AVSampleFormat sample_fmt);
+
+/**
+ * Fill an audio buffer with silence.
+ *
+ * @param audio_data  array of pointers to data planes
+ * @param offset      offset in samples at which to start filling
+ * @param nb_samples  number of samples to fill
+ * @param nb_channels number of audio channels
+ * @param sample_fmt  audio sample format
+ */
+int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
+                           int nb_channels, enum AVSampleFormat sample_fmt);
+
 #endif /* AVUTIL_SAMPLEFMT_H */