Logic for handling single frame in yadif (0f9f24c9), caused deint=1 (e.g., yadif=0:-1:1) to output extra duplicate leading frame:

ffmpeg -i fate-suite/ffmpeg-synthetic/vsynth1/%02d.pgm  -vf yadif=0:-1:1,showinfo -f null -y /dev/null
 [Parsed_showinfo_1 @ 0x1d967d0] n:0 pts:0 pts_time:0 pos:-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:E457EEA0 plane_checksum:[E457EEA0] mean:[126] stdev:[46.6]
 [Parsed_showinfo_1 @ 0x1d967d0] n:1 pts:0 pts_time:0 pos:-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:E457EEA0 plane_checksum:[E457EEA0] mean:[126] stdev:[46.6]
(Outputs 51 frames)

After patch, vf "yadif=0:-1:1" behaves correctly (like "yadif=0:-1:0") and outputs 50 frames, first two:

[Parsed_showinfo_1 @ 0x1e307d0] n:0 pts:0 pts_time:0 pos:-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:68E8D1EB plane_checksum:[68E8D1EB] mean:[126] stdev:[46.0]
[Parsed_showinfo_1 @ 0x1e307d0] n:1 pts:2 pts_time:0.04 pos:-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:4E674BC7 plane_checksum:[4E674BC7] mean:[125] stdev:[46.0]
(Outputs 50 frames)
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

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

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

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

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

Previous version reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Handle single frame inputs similar to yadif (e.g., https://github.com/FFmpeg/FFmpeg/commit/0f9f24c9cfd291c7ece4d3bad64fdf06d107168a and https://github.com/FFmpeg/FFmpeg/commit/681e008d06d2241d50abe6316c908a184ddc5942)

Example:
  ffmpeg -r 1 -t 1 -i fate-suite/ffmpeg-synthetic/vsynth1/%02d.pgm  -vf idet,showinfo -f null -y /dev/null

Previously:
  Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)
  [Parsed_idet_0 @ 0x36389d0] Repeated Fields: Neither:     0 Top:     0 Bottom:     0

After patch:
  [Parsed_showinfo_1 @ 0x1909810] n:0 pts:0 pts_time:0 pos:-1 fmt:gray sar:0/1 s:352x432 ...
  [Parsed_idet_0 @ 0x18f9bb0] Repeated Fields: Neither:     1 Top:     0 Bottom:     0

Fate looks good.
Signed-off-by: Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '49180563':
  rtmpproto: Fix a typo in a comment
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

Use 'if (CONFIG_APNG_DECODER)' where needed, so that the compiler can
optimize out some portion of code.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

There is no need to memset the zlib output buffer, as there is no
blending happening there. Instead, do not blend when the dispose
operation is set to 'background' (tranparent black).
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

add put_unligned_store() and avg_unligned_store() macros
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264qpel_template: POWER LE support for PREFIX_h264_qpel16_h_lowpass_altivec() PREFIX_h264_qpel16_v_lowpass_altivec() PREFIX_h264_qpel16_hv_lowpass_altivec()

add load_alignment() macro
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264chroma_template: POWER LE support for PREFIX_h264_chroma_mc8_altivec() PREFIX_no_rnd_vc1_chroma_mc8_altivec() CHROMA_MC8_ALTIVEC_CORE_SIMPLE() CHROMA_MC8_ALTIVEC_CORE()

add marcos GET_VSRC1() GET_VSRC()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/ppc/h264dsp: POWER LE support for h264_idct8_add_altivec() h264_idct_dc_add_internal() h264_loop_filter_luma_altivec() write16x4() VEC_1D_DCT() weight_h264_W_altivec() biweight_h264_W_altivec() VEC_LOAD_U8_ADD_S16_STORE_U8() ALTIVEC_STORE_SUM_CLIP()

add marcos GET_2PERM() dstv_load() vdst_load() dest_unligned_store()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'fcae9f21':
  dashenc: Avoid a VLA-like construct
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a9d8d35e':
  dashenc: Add options to make segment names configurable

Conflicts:
	libavformat/dashenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '01eac895':
  rtmpproto: Only prepend @setDataFrame for onMetaData and |RtmpSampleAccess

Conflicts:
	libavformat/rtmpproto.c

See: 60fd790fMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '44127b15':
  rtmppkt: Make pkt->data reallocable
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3c3b8003':
  rtmpproto: Simplify code for copying data into the output packet

Conflicts:
	libavformat/rtmpproto.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '857e6667':
  rtmpproto: Clarify a comment

Conflicts:
	libavformat/rtmpproto.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This fixes the build on compilers that interpreted the earlier
code as a variable length array (which we intentionally disallow).
Signed-off-by: Martin Storsjö <martin@martin.st>

This allows one to specify templated segment names for init-segments,
media-segments, and for the base-url in the case of single-file.
Signed-off-by: Martin Storsjö <martin@martin.st>

Currently, when streaming to an RTMP server, any time a packet of type
RTMP_PT_NOTIFY is encountered, the packet is prepended with @setDataFrame
before it gets sent to the server. This is incorrect; only packets for
onMetaData and |RtmpSampleAccess should invoke @setDataFrame on the RTMP
server. Specifically, the current bug manifests itself when trying to
stream onTextData or onCuePoint invocations.

This fix addresses that problem and ensures that the @setDataFrame is
only prepended for onMetaData and |RtmpSampleAccess.

Since data is fed to the rtmp_write function in smaller pieces (depending
on the calling IO buffer size), we can't generally assume that the
whole packet (or even the whole command string) is available at once,
therefore we can only check the command string once the full packet
has been transferred to us for sending.

Based on a patch by Jeffrey Wescott.
Signed-off-by: Martin Storsjö <martin@martin.st>

We try to avoid mixing av_malloc with av_realloc, since av_malloc
may be implemented with functions that can't (formally) be mixed
with the functions used in av_realloc.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes out of array access
Fixes: signal_sigsegv_35bd0f0_1182_cov_791726764_STRUCT_B_Samsung_4.bit
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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