diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ee47316d10e54593ed35dc8148259deb4a387946..ec4cc8a57b8ce45102f1a57742cda1d0887fd150 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,7 @@ build:
artifacts:
paths:
- output.log
+ - repo
script:
- apt-get update
- apt-get upgrade --yes
diff --git a/patches/ffmpeg b/patches/ffmpeg
new file mode 100755
index 0000000000000000000000000000000000000000..2b5ee67d2141ef106546bdbf6ae9ef779c937628
--- /dev/null
+++ b/patches/ffmpeg
@@ -0,0 +1,1924 @@
+#!/bin/sh
+set -e
+patch -p1 << 'EOF'
+diff -Nru ffmpeg-4.4.1/debian/control ffmpeg-4.4.1/debian/control
+--- ffmpeg-4.4.1/debian/control 2021-11-21 18:48:57.000000000 +0100
++++ ffmpeg-4.4.1/debian/control 2022-01-14 21:06:18.000000000 +0100
+@@ -22,8 +22,6 @@
+ # generates top level manual page listing
+ tree,
+ Build-Depends:
+-# autodetected: hwaccels 'cuda_llvm'
+- clang,
+ debhelper-compat (= 13),
+ # --enable-libflite
+ flite1-dev,
+@@ -57,8 +57,6 @@
+ libdc1394-dev [linux-any],
+ # --enable-libdrm
+ libdrm-dev [linux-any],
+-# autodected: ffnvcodec
+- libffmpeg-nvenc-dev [amd64 arm64 i386],
+ # --enable-libfontconfig
+ libfontconfig-dev,
+ # --enable-libfreetype
+@@ -119,8 +116,6 @@
+ libsdl2-dev,
+ # --enable-libshine
+ libshine-dev (>= 3.0.0),
+-# --enable-libsmbclient (used only in -extra flavor)
+- libsmbclient-dev (>= 4.13) [!hurd-i386],
+ # --enable-libsnappy
+ libsnappy-dev,
+ # --enable-libsoxr
+diff -Nru ffmpeg-4.4.1/debian/patches/0001-add-V4L2-request-API-hwaccel.patch ffmpeg-4.4.1/debian/patches/0001-add-V4L2-request-API-hwaccel.patch
+--- ffmpeg-4.4.1/debian/patches/0001-add-V4L2-request-API-hwaccel.patch 1970-01-01 01:00:00.000000000 +0100
++++ ffmpeg-4.4.1/debian/patches/0001-add-V4L2-request-API-hwaccel.patch 2022-01-14 21:06:18.000000000 +0100
+@@ -0,0 +1,1830 @@
++From ccd80f0e8aec1004808fae50137ff26c0846271b Mon Sep 17 00:00:00 2001
++From: Jonas Karlman <jonas@kwiboo.se>
++Date: Wed, 9 Dec 2020 20:25:16 +0000
++Subject: [PATCH] add V4L2 request API hwaccel
++
++avutil/buffer: add av_buffer_pool_flush()
++avcodec: add common V4L2 request API code
++h264dec: add idr_pic_id to slice context
++h264dec: add ref_pic_marking and pic_order_cnt bit_size to slice context
++h264dec: add V4L2 request API hwaccel
++hwcontext_drm: do not require drm device
++
++This allows the cli to create a dummy drm hwcontext
++that can be shared between the v4l2 decoder/scaler/encoder.
++
++This is especially useful on older RPI3 where /dev/dri devices
++are not available in the default configuration.
++
++Signed-off-by: Aman Gupta <aman@tmm1.net>
++Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
++Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
++Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
++Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
++---
++ configure | 15 +
++ libavcodec/Makefile | 2 +
++ libavcodec/h264_slice.c | 12 +-
++ libavcodec/h264dec.c | 3 +
++ libavcodec/h264dec.h | 3 +
++ libavcodec/hwaccels.h | 1 +
++ libavcodec/hwconfig.h | 2 +
++ libavcodec/v4l2_request.c | 988 +++++++++++++++++++++++++++++++++
++ libavcodec/v4l2_request.h | 77 +++
++ libavcodec/v4l2_request_h264.c | 457 +++++++++++++++
++ libavutil/buffer.c | 7 +
++ libavutil/buffer.h | 5 +
++ libavutil/hwcontext_drm.c | 5 +
++ 15 files changed, 1579 insertions(+), 2 deletions(-)
++ create mode 100644 libavcodec/v4l2_request.c
++ create mode 100644 libavcodec/v4l2_request.h
++ create mode 100644 libavcodec/v4l2_request_h264.c
++
++--- a/configure
+++++ b/configure
++@@ -279,6 +279,7 @@ External library support:
++ if openssl, gnutls or mbedtls is not used [no]
++ --enable-libtwolame enable MP2 encoding via libtwolame [no]
++ --enable-libuavs3d enable AVS3 decoding via libuavs3d [no]
+++ --enable-libudev enable libudev [no]
++ --enable-libv4l2 enable libv4l2/v4l-utils [no]
++ --enable-libvidstab enable video stabilization using vid.stab [no]
++ --enable-libvmaf enable vmaf filter via libvmaf [no]
++@@ -346,6 +347,7 @@ External library support:
++ --enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no]
++ --enable-rkmpp enable Rockchip Media Process Platform code [no]
++ --disable-v4l2-m2m disable V4L2 mem2mem code [autodetect]
+++ --enable-v4l2-request enable V4L2 request API code [no]
++ --disable-vaapi disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
++ --disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
++ --disable-videotoolbox disable VideoToolbox code [autodetect]
++@@ -1814,6 +1816,7 @@ EXTERNAL_LIBRARY_LIST="
++ libtheora
++ libtwolame
++ libuavs3d
+++ libudev
++ libv4l2
++ libvmaf
++ libvorbis
++@@ -1868,6 +1871,7 @@ HWACCEL_LIBRARY_LIST="
++ mmal
++ omx
++ opencl
+++ v4l2_request
++ vulkan
++ "
++
++@@ -2920,6 +2924,7 @@ d3d11va_deps="dxva_h ID3D11VideoDecoder
++ dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
++ ffnvcodec_deps_any="libdl LoadLibrary"
++ nvdec_deps="ffnvcodec"
+++v4l2_request_deps="linux_videodev2_h linux_media_h v4l2_timeval_to_ns libdrm libudev"
++ vaapi_x11_deps="xlib"
++ videotoolbox_hwaccel_deps="videotoolbox pthreads"
++ videotoolbox_hwaccel_extralibs="-framework QuartzCore"
++@@ -2947,6 +2952,8 @@ h264_dxva2_hwaccel_deps="dxva2"
++ h264_dxva2_hwaccel_select="h264_decoder"
++ h264_nvdec_hwaccel_deps="nvdec"
++ h264_nvdec_hwaccel_select="h264_decoder"
+++h264_v4l2request_hwaccel_deps="v4l2_request h264_v4l2_request"
+++h264_v4l2request_hwaccel_select="h264_decoder"
++ h264_vaapi_hwaccel_deps="vaapi"
++ h264_vaapi_hwaccel_select="h264_decoder"
++ h264_vdpau_hwaccel_deps="vdpau"
++@@ -6441,6 +6448,7 @@ enabled libtwolame && require lib
++ { check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
++ die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
++ enabled libuavs3d && require_pkg_config libuavs3d "uavs3d >= 1.1.41" uavs3d.h uavs3d_decode
+++enabled libudev && require_pkg_config libudev libudev libudev.h udev_new
++ enabled libv4l2 && require_pkg_config libv4l2 libv4l2 libv4l2.h v4l2_ioctl
++ enabled libvidstab && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
++ enabled libvmaf && require_pkg_config libvmaf "libvmaf >= 1.5.2" libvmaf.h compute_vmaf
++@@ -6539,6 +6547,10 @@ enabled rkmpp && { require_p
++ { enabled libdrm ||
++ die "ERROR: rkmpp requires --enable-libdrm"; }
++ }
+++enabled v4l2_request && { enabled libdrm ||
+++ die "ERROR: v4l2-request requires --enable-libdrm"; } &&
+++ { enabled libudev ||
+++ die "ERROR: v4l2-request requires --enable-libudev"; }
++ enabled vapoursynth && require_pkg_config vapoursynth "vapoursynth-script >= 42" VSScript.h vsscript_init
++
++
++@@ -6620,6 +6632,9 @@ if enabled v4l2_m2m; then
++ check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
++ fi
++
+++check_func_headers "linux/media.h linux/videodev2.h" v4l2_timeval_to_ns
+++check_cc h264_v4l2_request linux/videodev2.h "int i = V4L2_PIX_FMT_H264_SLICE;"
+++
++ check_headers sys/videoio.h
++ test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
++
++--- a/libavcodec/Makefile
+++++ b/libavcodec/Makefile
++@@ -155,6 +155,7 @@ OBJS-$(CONFIG_VP3DSP) +
++ OBJS-$(CONFIG_VP56DSP) += vp56dsp.o
++ OBJS-$(CONFIG_VP8DSP) += vp8dsp.o
++ OBJS-$(CONFIG_V4L2_M2M) += v4l2_m2m.o v4l2_context.o v4l2_buffers.o v4l2_fmt.o
+++OBJS-$(CONFIG_V4L2_REQUEST) += v4l2_request.o
++ OBJS-$(CONFIG_WMA_FREQS) += wma_freqs.o
++ OBJS-$(CONFIG_WMV2DSP) += wmv2dsp.o
++
++@@ -934,6 +935,7 @@ OBJS-$(CONFIG_H264_D3D11VA_HWACCEL)
++ OBJS-$(CONFIG_H264_DXVA2_HWACCEL) += dxva2_h264.o
++ OBJS-$(CONFIG_H264_NVDEC_HWACCEL) += nvdec_h264.o
++ OBJS-$(CONFIG_H264_QSV_HWACCEL) += qsvdec.o
+++OBJS-$(CONFIG_H264_V4L2REQUEST_HWACCEL) += v4l2_request_h264.o
++ OBJS-$(CONFIG_H264_VAAPI_HWACCEL) += vaapi_h264.o
++ OBJS-$(CONFIG_H264_VDPAU_HWACCEL) += vdpau_h264.o
++ OBJS-$(CONFIG_H264_VIDEOTOOLBOX_HWACCEL) += videotoolbox.o
++--- a/libavcodec/h264_slice.c
+++++ b/libavcodec/h264_slice.c
++@@ -768,6 +768,7 @@ static enum AVPixelFormat get_pixel_form
++ #define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \
++ (CONFIG_H264_D3D11VA_HWACCEL * 2) + \
++ CONFIG_H264_NVDEC_HWACCEL + \
+++ CONFIG_H264_V4L2REQUEST_HWACCEL + \
++ CONFIG_H264_VAAPI_HWACCEL + \
++ CONFIG_H264_VIDEOTOOLBOX_HWACCEL + \
++ CONFIG_H264_VDPAU_HWACCEL)
++@@ -853,6 +854,9 @@ static enum AVPixelFormat get_pixel_form
++ #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
++ *fmt++ = AV_PIX_FMT_VIDEOTOOLBOX;
++ #endif
+++#if CONFIG_H264_V4L2REQUEST_HWACCEL
+++ *fmt++ = AV_PIX_FMT_DRM_PRIME;
+++#endif
++ if (h->avctx->codec->pix_fmts)
++ choices = h->avctx->codec->pix_fmts;
++ else if (h->avctx->color_range == AVCOL_RANGE_JPEG)
++@@ -1747,7 +1751,7 @@ static int h264_slice_header_parse(const
++ unsigned int slice_type, tmp, i;
++ int field_pic_flag, bottom_field_flag;
++ int first_slice = sl == h->slice_ctx && !h->current_slice;
++- int picture_structure;
+++ int picture_structure, pos;
++
++ if (first_slice)
++ av_assert0(!h->setup_finished);
++@@ -1829,8 +1833,9 @@ static int h264_slice_header_parse(const
++ }
++
++ if (nal->type == H264_NAL_IDR_SLICE)
++- get_ue_golomb_long(&sl->gb); /* idr_pic_id */
+++ sl->idr_pic_id = get_ue_golomb_long(&sl->gb);
++
+++ pos = sl->gb.index;
++ sl->poc_lsb = 0;
++ sl->delta_poc_bottom = 0;
++ if (sps->poc_type == 0) {
++@@ -1847,6 +1852,7 @@ static int h264_slice_header_parse(const
++ if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME)
++ sl->delta_poc[1] = get_se_golomb(&sl->gb);
++ }
+++ sl->pic_order_cnt_bit_size = sl->gb.index - pos;
++
++ sl->redundant_pic_count = 0;
++ if (pps->redundant_pic_cnt_present)
++@@ -1884,12 +1890,14 @@ static int h264_slice_header_parse(const
++ return ret;
++ }
++
+++ pos = sl->gb.index;
++ sl->explicit_ref_marking = 0;
++ if (nal->ref_idc) {
++ ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, h->avctx);
++ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
++ return AVERROR_INVALIDDATA;
++ }
+++ sl->ref_pic_marking_bit_size = sl->gb.index - pos;
++
++ if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) {
++ tmp = get_ue_golomb_31(&sl->gb);
++--- a/libavcodec/h264dec.c
+++++ b/libavcodec/h264dec.c
++@@ -1076,6 +1076,9 @@ AVCodec ff_h264_decoder = {
++ #if CONFIG_H264_VIDEOTOOLBOX_HWACCEL
++ HWACCEL_VIDEOTOOLBOX(h264),
++ #endif
+++#if CONFIG_H264_V4L2REQUEST_HWACCEL
+++ HWACCEL_V4L2REQUEST(h264),
+++#endif
++ NULL
++ },
++ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE | FF_CODEC_CAP_EXPORTS_CROPPING |
++--- a/libavcodec/h264dec.h
+++++ b/libavcodec/h264dec.h
++@@ -329,6 +329,7 @@ typedef struct H264SliceContext {
++ MMCO mmco[MAX_MMCO_COUNT];
++ int nb_mmco;
++ int explicit_ref_marking;
+++ int ref_pic_marking_bit_size;
++
++ int frame_num;
++ int poc_lsb;
++@@ -336,6 +337,8 @@ typedef struct H264SliceContext {
++ int delta_poc[2];
++ int curr_pic_num;
++ int max_pic_num;
+++ int idr_pic_id;
+++ int pic_order_cnt_bit_size;
++ } H264SliceContext;
++
++ /**
++--- a/libavcodec/hwaccels.h
+++++ b/libavcodec/hwaccels.h
++@@ -32,6 +32,7 @@ extern const AVHWAccel ff_h264_d3d11va_h
++ extern const AVHWAccel ff_h264_d3d11va2_hwaccel;
++ extern const AVHWAccel ff_h264_dxva2_hwaccel;
++ extern const AVHWAccel ff_h264_nvdec_hwaccel;
+++extern const AVHWAccel ff_h264_v4l2request_hwaccel;
++ extern const AVHWAccel ff_h264_vaapi_hwaccel;
++ extern const AVHWAccel ff_h264_vdpau_hwaccel;
++ extern const AVHWAccel ff_h264_videotoolbox_hwaccel;
++--- a/libavcodec/hwconfig.h
+++++ b/libavcodec/hwconfig.h
++@@ -80,6 +80,8 @@ typedef struct AVCodecHWConfigInternal {
++ HW_CONFIG_HWACCEL(0, 0, 1, D3D11VA_VLD, NONE, ff_ ## codec ## _d3d11va_hwaccel)
++ #define HWACCEL_XVMC(codec) \
++ HW_CONFIG_HWACCEL(0, 0, 1, XVMC, NONE, ff_ ## codec ## _xvmc_hwaccel)
+++#define HWACCEL_V4L2REQUEST(codec) \
+++ HW_CONFIG_HWACCEL(1, 0, 0, DRM_PRIME, DRM, ff_ ## codec ## _v4l2request_hwaccel)
++
++ #define HW_CONFIG_ENCODER(device, frames, ad_hoc, format, device_type_) \
++ &(const AVCodecHWConfigInternal) { \
++--- /dev/null
+++++ b/libavcodec/v4l2_request.c
++@@ -0,0 +1,988 @@
+++/*
+++ * This file is part of FFmpeg.
+++ *
+++ * FFmpeg is free software; you can redistribute it and/or
+++ * modify it under the terms of the GNU Lesser General Public
+++ * License as published by the Free Software Foundation; either
+++ * version 2.1 of the License, or (at your option) any later version.
+++ *
+++ * FFmpeg is distributed in the hope that it will be useful,
+++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+++ * Lesser General Public License for more details.
+++ *
+++ * You should have received a copy of the GNU Lesser General Public
+++ * License along with FFmpeg; if not, write to the Free Software
+++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+++ */
+++
+++#include <drm_fourcc.h>
+++#include <linux/media.h>
+++#include <sys/ioctl.h>
+++#include <sys/mman.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <fcntl.h>
+++#include <unistd.h>
+++
+++#include <sys/sysmacros.h>
+++#include <libudev.h>
+++
+++#include "decode.h"
+++#include "internal.h"
+++#include "v4l2_request.h"
+++
+++#define OUTPUT_BUFFER_PADDING_SIZE (AV_INPUT_BUFFER_PADDING_SIZE * 4)
+++
+++uint64_t ff_v4l2_request_get_capture_timestamp(AVFrame *frame)
+++{
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)frame->data[0];
+++ return req ? v4l2_timeval_to_ns(&req->capture.buffer.timestamp) : 0;
+++}
+++
+++int ff_v4l2_request_reset_frame(AVCodecContext *avctx, AVFrame *frame)
+++{
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)frame->data[0];
+++ memset(&req->drm, 0, sizeof(AVDRMFrameDescriptor));
+++ req->output.used = 0;
+++ return 0;
+++}
+++
+++int ff_v4l2_request_append_output_buffer(AVCodecContext *avctx, AVFrame *frame, const uint8_t *data, uint32_t size)
+++{
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)frame->data[0];
+++ if (req->output.used + size + OUTPUT_BUFFER_PADDING_SIZE <= req->output.size) {
+++ memcpy(req->output.addr + req->output.used, data, size);
+++ req->output.used += size;
+++ } else {
+++ av_log(avctx, AV_LOG_ERROR, "%s: output.used=%u output.size=%u size=%u\n", __func__, req->output.used, req->output.size, size);
+++ }
+++ return 0;
+++}
+++
+++static int v4l2_request_controls(V4L2RequestContext *ctx, int request_fd, unsigned long type, struct v4l2_ext_control *control, int count)
+++{
+++ struct v4l2_ext_controls controls = {
+++ .controls = control,
+++ .count = count,
+++ .request_fd = request_fd,
+++ .which = (request_fd >= 0) ? V4L2_CTRL_WHICH_REQUEST_VAL : 0,
+++ };
+++
+++ if (!control || !count)
+++ return 0;
+++
+++ return ioctl(ctx->video_fd, type, &controls);
+++}
+++
+++static int v4l2_request_set_controls(V4L2RequestContext *ctx, int request_fd, struct v4l2_ext_control *control, int count)
+++{
+++ return v4l2_request_controls(ctx, request_fd, VIDIOC_S_EXT_CTRLS, control, count);
+++}
+++
+++int ff_v4l2_request_set_controls(AVCodecContext *avctx, struct v4l2_ext_control *control, int count)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++
+++ ret = v4l2_request_controls(ctx, -1, VIDIOC_S_EXT_CTRLS, control, count);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: set controls failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ return ret;
+++}
+++
+++int ff_v4l2_request_get_controls(AVCodecContext *avctx, struct v4l2_ext_control *control, int count)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++
+++ ret = v4l2_request_controls(ctx, -1, VIDIOC_G_EXT_CTRLS, control, count);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get controls failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ return ret;
+++}
+++
+++int ff_v4l2_request_query_control(AVCodecContext *avctx, struct v4l2_query_ext_ctrl *control)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_QUERY_EXT_CTRL, control);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: query control failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ return 0;
+++}
+++
+++int ff_v4l2_request_query_control_default_value(AVCodecContext *avctx, uint32_t id)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ struct v4l2_queryctrl control = { .id = id };
+++ int ret;
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_QUERYCTRL, &control);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: query control failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ return control.default_value;
+++}
+++
+++static int v4l2_request_queue_buffer(V4L2RequestContext *ctx, int request_fd, V4L2RequestBuffer *buf, uint32_t flags)
+++{
+++ struct v4l2_plane planes[1] = {};
+++ struct v4l2_buffer buffer = {
+++ .type = buf->buffer.type,
+++ .memory = buf->buffer.memory,
+++ .index = buf->index,
+++ .timestamp.tv_usec = ctx->timestamp,
+++ .bytesused = buf->used,
+++ .request_fd = request_fd,
+++ .flags = ((request_fd >= 0) ? V4L2_BUF_FLAG_REQUEST_FD : 0) | flags,
+++ };
+++
+++ buf->buffer.flags = buffer.flags;
+++ buf->buffer.timestamp = buffer.timestamp;
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(buf->buffer.type)) {
+++ planes[0].bytesused = buf->used;
+++ buffer.bytesused = 0;
+++ buffer.length = 1;
+++ buffer.m.planes = planes;
+++ }
+++
+++ return ioctl(ctx->video_fd, VIDIOC_QBUF, &buffer);
+++}
+++
+++static int v4l2_request_dequeue_buffer(V4L2RequestContext *ctx, V4L2RequestBuffer *buf)
+++{
+++ int ret;
+++ struct v4l2_plane planes[1] = {};
+++ struct v4l2_buffer buffer = {
+++ .type = buf->buffer.type,
+++ .memory = buf->buffer.memory,
+++ .index = buf->index,
+++ };
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(buf->buffer.type)) {
+++ buffer.length = 1;
+++ buffer.m.planes = planes;
+++ }
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_DQBUF, &buffer);
+++ if (ret < 0)
+++ return ret;
+++
+++ buf->buffer.flags = buffer.flags;
+++ buf->buffer.timestamp = buffer.timestamp;
+++ return 0;
+++}
+++
+++const uint32_t v4l2_request_capture_pixelformats[] = {
+++ V4L2_PIX_FMT_NV12,
+++#ifdef DRM_FORMAT_MOD_ALLWINNER_TILED
+++ V4L2_PIX_FMT_SUNXI_TILED_NV12,
+++#endif
+++};
+++
+++static int v4l2_request_set_drm_descriptor(V4L2RequestDescriptor *req, struct v4l2_format *format)
+++{
+++ AVDRMFrameDescriptor *desc = &req->drm;
+++ AVDRMLayerDescriptor *layer = &desc->layers[0];
+++ uint32_t pixelformat = V4L2_TYPE_IS_MULTIPLANAR(format->type) ? format->fmt.pix_mp.pixelformat : format->fmt.pix.pixelformat;
+++
+++ switch (pixelformat) {
+++ case V4L2_PIX_FMT_NV12:
+++ layer->format = DRM_FORMAT_NV12;
+++ desc->objects[0].format_modifier = DRM_FORMAT_MOD_LINEAR;
+++ break;
+++#ifdef DRM_FORMAT_MOD_ALLWINNER_TILED
+++ case V4L2_PIX_FMT_SUNXI_TILED_NV12:
+++ layer->format = DRM_FORMAT_NV12;
+++ desc->objects[0].format_modifier = DRM_FORMAT_MOD_ALLWINNER_TILED;
+++ break;
+++#endif
+++ default:
+++ return -1;
+++ }
+++
+++ desc->nb_objects = 1;
+++ desc->objects[0].fd = req->capture.fd;
+++ desc->objects[0].size = req->capture.size;
+++
+++ desc->nb_layers = 1;
+++ layer->nb_planes = 2;
+++
+++ layer->planes[0].object_index = 0;
+++ layer->planes[0].offset = 0;
+++ layer->planes[0].pitch = V4L2_TYPE_IS_MULTIPLANAR(format->type) ? format->fmt.pix_mp.plane_fmt[0].bytesperline : format->fmt.pix.bytesperline;
+++
+++ layer->planes[1].object_index = 0;
+++ layer->planes[1].offset = layer->planes[0].pitch * (V4L2_TYPE_IS_MULTIPLANAR(format->type) ? format->fmt.pix_mp.height : format->fmt.pix.height);
+++ layer->planes[1].pitch = layer->planes[0].pitch;
+++
+++ return 0;
+++}
+++
+++static int v4l2_request_queue_decode(AVCodecContext *avctx, AVFrame *frame, struct v4l2_ext_control *control, int count, int first_slice, int last_slice)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)frame->data[0];
+++ struct timeval tv = { 2, 0 };
+++ fd_set except_fds;
+++ int ret;
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p used=%u controls=%d index=%d fd=%d request_fd=%d first_slice=%d last_slice=%d\n", __func__, avctx, req->output.used, count, req->capture.index, req->capture.fd, req->request_fd, first_slice, last_slice);
+++
+++ if (first_slice)
+++ ctx->timestamp++;
+++
+++ ret = v4l2_request_set_controls(ctx, req->request_fd, control, count);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: set controls failed for request %d, %s (%d)\n", __func__, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ memset(req->output.addr + req->output.used, 0, OUTPUT_BUFFER_PADDING_SIZE);
+++
+++ ret = v4l2_request_queue_buffer(ctx, req->request_fd, &req->output, last_slice ? 0 : V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: queue output buffer %d failed for request %d, %s (%d)\n", __func__, req->output.index, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ if (first_slice) {
+++ ret = v4l2_request_queue_buffer(ctx, -1, &req->capture, 0);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: queue capture buffer %d failed for request %d, %s (%d)\n", __func__, req->capture.index, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++ }
+++
+++ ret = ioctl(req->request_fd, MEDIA_REQUEST_IOC_QUEUE, NULL);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: queue request %d failed, %s (%d)\n", __func__, req->request_fd, strerror(errno), errno);
+++ goto fail;
+++ }
+++
+++ FD_ZERO(&except_fds);
+++ FD_SET(req->request_fd, &except_fds);
+++
+++ ret = select(req->request_fd + 1, NULL, NULL, &except_fds, &tv);
+++ if (ret == 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: request %d timeout\n", __func__, req->request_fd);
+++ goto fail;
+++ } else if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: select request %d failed, %s (%d)\n", __func__, req->request_fd, strerror(errno), errno);
+++ goto fail;
+++ }
+++
+++ ret = v4l2_request_dequeue_buffer(ctx, &req->output);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: dequeue output buffer %d failed for request %d, %s (%d)\n", __func__, req->output.index, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ if (last_slice) {
+++ ret = v4l2_request_dequeue_buffer(ctx, &req->capture);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: dequeue capture buffer %d failed for request %d, %s (%d)\n", __func__, req->capture.index, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ if (req->capture.buffer.flags & V4L2_BUF_FLAG_ERROR) {
+++ av_log(avctx, AV_LOG_WARNING, "%s: capture buffer %d flagged with error for request %d\n", __func__, req->capture.index, req->request_fd);
+++ frame->flags |= AV_FRAME_FLAG_CORRUPT;
+++ }
+++ }
+++
+++ ret = ioctl(req->request_fd, MEDIA_REQUEST_IOC_REINIT, NULL);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: reinit request %d failed, %s (%d)\n", __func__, req->request_fd, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ if (last_slice)
+++ return v4l2_request_set_drm_descriptor(req, &ctx->format);
+++
+++ return 0;
+++
+++fail:
+++ ret = v4l2_request_dequeue_buffer(ctx, &req->output);
+++ if (ret < 0)
+++ av_log(avctx, AV_LOG_ERROR, "%s: dequeue output buffer %d failed for request %d, %s (%d)\n", __func__, req->output.index, req->request_fd, strerror(errno), errno);
+++
+++ ret = v4l2_request_dequeue_buffer(ctx, &req->capture);
+++ if (ret < 0)
+++ av_log(avctx, AV_LOG_ERROR, "%s: dequeue capture buffer %d failed for request %d, %s (%d)\n", __func__, req->capture.index, req->request_fd, strerror(errno), errno);
+++
+++ ret = ioctl(req->request_fd, MEDIA_REQUEST_IOC_REINIT, NULL);
+++ if (ret < 0)
+++ av_log(avctx, AV_LOG_ERROR, "%s: reinit request %d failed, %s (%d)\n", __func__, req->request_fd, strerror(errno), errno);
+++
+++ return -1;
+++}
+++
+++int ff_v4l2_request_decode_slice(AVCodecContext *avctx, AVFrame *frame, struct v4l2_ext_control *control, int count, int first_slice, int last_slice)
+++{
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)frame->data[0];
+++
+++ /* fall back to queue each slice as a full frame */
+++ if ((req->output.capabilities & V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF) != V4L2_BUF_CAP_SUPPORTS_M2M_HOLD_CAPTURE_BUF)
+++ return v4l2_request_queue_decode(avctx, frame, control, count, 1, 1);
+++
+++ return v4l2_request_queue_decode(avctx, frame, control, count, first_slice, last_slice);
+++}
+++
+++int ff_v4l2_request_decode_frame(AVCodecContext *avctx, AVFrame *frame, struct v4l2_ext_control *control, int count)
+++{
+++ return v4l2_request_queue_decode(avctx, frame, control, count, 1, 1);
+++}
+++
+++static int v4l2_request_try_format(AVCodecContext *avctx, enum v4l2_buf_type type, uint32_t pixelformat)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ struct v4l2_fmtdesc fmtdesc = {
+++ .index = 0,
+++ .type = type,
+++ };
+++
+++ if (V4L2_TYPE_IS_OUTPUT(type)) {
+++ struct v4l2_create_buffers buffers = {
+++ .count = 0,
+++ .memory = V4L2_MEMORY_MMAP,
+++ .format.type = type,
+++ };
+++
+++ if (ioctl(ctx->video_fd, VIDIOC_CREATE_BUFS, &buffers) < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: create buffers failed for type %u, %s (%d)\n", __func__, type, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ if ((buffers.capabilities & V4L2_BUF_CAP_SUPPORTS_REQUESTS) != V4L2_BUF_CAP_SUPPORTS_REQUESTS) {
+++ av_log(avctx, AV_LOG_INFO, "%s: output buffer type do not support requests, capabilities %u\n", __func__, buffers.capabilities);
+++ return -1;
+++ }
+++ }
+++
+++ while (ioctl(ctx->video_fd, VIDIOC_ENUM_FMT, &fmtdesc) >= 0) {
+++ if (fmtdesc.pixelformat == pixelformat)
+++ return 0;
+++
+++ fmtdesc.index++;
+++ }
+++
+++ av_log(avctx, AV_LOG_INFO, "%s: pixelformat %u not supported for type %u\n", __func__, pixelformat, type);
+++ return -1;
+++}
+++
+++static int v4l2_request_set_format(AVCodecContext *avctx, enum v4l2_buf_type type, uint32_t pixelformat, uint32_t buffersize)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ struct v4l2_format format = {
+++ .type = type,
+++ };
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
+++ format.fmt.pix_mp.width = avctx->coded_width;
+++ format.fmt.pix_mp.height = avctx->coded_height;
+++ format.fmt.pix_mp.pixelformat = pixelformat;
+++ format.fmt.pix_mp.plane_fmt[0].sizeimage = buffersize;
+++ format.fmt.pix_mp.num_planes = 1;
+++ } else {
+++ format.fmt.pix.width = avctx->coded_width;
+++ format.fmt.pix.height = avctx->coded_height;
+++ format.fmt.pix.pixelformat = pixelformat;
+++ format.fmt.pix.sizeimage = buffersize;
+++ }
+++
+++ return ioctl(ctx->video_fd, VIDIOC_S_FMT, &format);
+++}
+++
+++static int v4l2_request_select_capture_format(AVCodecContext *avctx)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ enum v4l2_buf_type type = ctx->format.type;
+++
+++ /* V4L2 documentation for stateless decoders suggests the driver should choose the preferred/optimal format */
+++ /* but drivers do not fully implement this, so use v4l2_request_capture_pixelformats. */
+++#if 0
+++ struct v4l2_format format = {
+++ .type = type,
+++ };
+++ struct v4l2_fmtdesc fmtdesc = {
+++ .index = 0,
+++ .type = type,
+++ };
+++ uint32_t pixelformat;
+++ int i;
+++
+++ if (ioctl(ctx->video_fd, VIDIOC_G_FMT, &format) < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get capture format failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ pixelformat = V4L2_TYPE_IS_MULTIPLANAR(type) ? format.fmt.pix_mp.pixelformat : format.fmt.pix.pixelformat;
+++
+++ for (i = 0; i < FF_ARRAY_ELEMS(v4l2_request_capture_pixelformats); i++) {
+++ if (pixelformat == v4l2_request_capture_pixelformats[i])
+++ return v4l2_request_set_format(avctx, type, pixelformat, 0);
+++ }
+++
+++ while (ioctl(ctx->video_fd, VIDIOC_ENUM_FMT, &fmtdesc) >= 0) {
+++ for (i = 0; i < FF_ARRAY_ELEMS(v4l2_request_capture_pixelformats); i++) {
+++ if (fmtdesc.pixelformat == v4l2_request_capture_pixelformats[i])
+++ return v4l2_request_set_format(avctx, type, fmtdesc.pixelformat, 0);
+++ }
+++
+++ fmtdesc.index++;
+++ }
+++#else
+++ for (int i = 0; i < FF_ARRAY_ELEMS(v4l2_request_capture_pixelformats); i++) {
+++ uint32_t pixelformat = v4l2_request_capture_pixelformats[i];
+++ if (!v4l2_request_try_format(avctx, type, pixelformat))
+++ return v4l2_request_set_format(avctx, type, pixelformat, 0);
+++ }
+++#endif
+++
+++ return -1;
+++}
+++
+++static int v4l2_request_probe_video_device(struct udev_device *device, AVCodecContext *avctx, uint32_t pixelformat, uint32_t buffersize, struct v4l2_ext_control *control, int count)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret = AVERROR(EINVAL);
+++ struct v4l2_capability capability = {0};
+++ unsigned int capabilities = 0;
+++
+++ const char *path = udev_device_get_devnode(device);
+++ if (!path) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get video device devnode failed\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ctx->video_fd = open(path, O_RDWR | O_NONBLOCK, 0);
+++ if (ctx->video_fd < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: opening %s failed, %s (%d)\n", __func__, path, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_QUERYCAP, &capability);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get video capability failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ if (capability.capabilities & V4L2_CAP_DEVICE_CAPS)
+++ capabilities = capability.device_caps;
+++ else
+++ capabilities = capability.capabilities;
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p ctx=%p path=%s capabilities=%u\n", __func__, avctx, ctx, path, capabilities);
+++
+++ if ((capabilities & V4L2_CAP_STREAMING) != V4L2_CAP_STREAMING) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: missing required streaming capability\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ if ((capabilities & V4L2_CAP_VIDEO_M2M_MPLANE) == V4L2_CAP_VIDEO_M2M_MPLANE) {
+++ ctx->output_type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+++ ctx->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+++ } else if ((capabilities & V4L2_CAP_VIDEO_M2M) == V4L2_CAP_VIDEO_M2M) {
+++ ctx->output_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+++ ctx->format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+++ } else {
+++ av_log(avctx, AV_LOG_ERROR, "%s: missing required mem2mem capability\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = v4l2_request_try_format(avctx, ctx->output_type, pixelformat);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_WARNING, "%s: try output format failed\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = v4l2_request_set_format(avctx, ctx->output_type, pixelformat, buffersize);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: set output format failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = v4l2_request_set_controls(ctx, -1, control, count);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: set controls failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = v4l2_request_select_capture_format(avctx);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_WARNING, "%s: select capture format failed\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ return 0;
+++
+++fail:
+++ if (ctx->video_fd >= 0) {
+++ close(ctx->video_fd);
+++ ctx->video_fd = -1;
+++ }
+++ return ret;
+++}
+++
+++static int v4l2_request_init_context(AVCodecContext *avctx)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_G_FMT, &ctx->format);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get capture format failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(ctx->format.type)) {
+++ av_log(avctx, AV_LOG_DEBUG, "%s: pixelformat=%d width=%u height=%u bytesperline=%u sizeimage=%u num_planes=%u\n", __func__, ctx->format.fmt.pix_mp.pixelformat, ctx->format.fmt.pix_mp.width, ctx->format.fmt.pix_mp.height, ctx->format.fmt.pix_mp.plane_fmt[0].bytesperline, ctx->format.fmt.pix_mp.plane_fmt[0].sizeimage, ctx->format.fmt.pix_mp.num_planes);
+++ } else {
+++ av_log(avctx, AV_LOG_DEBUG, "%s: pixelformat=%d width=%u height=%u bytesperline=%u sizeimage=%u\n", __func__, ctx->format.fmt.pix.pixelformat, ctx->format.fmt.pix.width, ctx->format.fmt.pix.height, ctx->format.fmt.pix.bytesperline, ctx->format.fmt.pix.sizeimage);
+++ }
+++
+++ ret = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_DRM);
+++ if (ret < 0)
+++ goto fail;
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_STREAMON, &ctx->output_type);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: output stream on failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_STREAMON, &ctx->format.type);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: capture stream on failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ return 0;
+++
+++fail:
+++ ff_v4l2_request_uninit(avctx);
+++ return ret;
+++}
+++
+++static int v4l2_request_probe_media_device(struct udev_device *device, AVCodecContext *avctx, uint32_t pixelformat, uint32_t buffersize, struct v4l2_ext_control *control, int count)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++ struct media_device_info device_info = {0};
+++ struct media_v2_topology topology = {0};
+++ struct media_v2_interface *interfaces = NULL;
+++ struct udev *udev = udev_device_get_udev(device);
+++ struct udev_device *video_device;
+++ dev_t devnum;
+++
+++ const char *path = udev_device_get_devnode(device);
+++ if (!path) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get media device devnode failed\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ctx->media_fd = open(path, O_RDWR, 0);
+++ if (ctx->media_fd < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: opening %s failed, %s (%d)\n", __func__, path, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = ioctl(ctx->media_fd, MEDIA_IOC_DEVICE_INFO, &device_info);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get media device info failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p ctx=%p path=%s driver=%s\n", __func__, avctx, ctx, path, device_info.driver);
+++
+++ ret = ioctl(ctx->media_fd, MEDIA_IOC_G_TOPOLOGY, &topology);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get media topology failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ if (topology.num_interfaces <= 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: media device has no interfaces\n", __func__);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ interfaces = av_mallocz(topology.num_interfaces * sizeof(struct media_v2_interface));
+++ if (!interfaces) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: allocating media interface struct failed\n", __func__);
+++ ret = AVERROR(ENOMEM);
+++ goto fail;
+++ }
+++
+++ topology.ptr_interfaces = (__u64)(uintptr_t)interfaces;
+++ ret = ioctl(ctx->media_fd, MEDIA_IOC_G_TOPOLOGY, &topology);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get media topology failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ ret = AVERROR(EINVAL);
+++ goto fail;
+++ }
+++
+++ ret = AVERROR(EINVAL);
+++ for (int i = 0; i < topology.num_interfaces; i++) {
+++ if (interfaces[i].intf_type != MEDIA_INTF_T_V4L_VIDEO)
+++ continue;
+++
+++ devnum = makedev(interfaces[i].devnode.major, interfaces[i].devnode.minor);
+++ video_device = udev_device_new_from_devnum(udev, 'c', devnum);
+++ if (!video_device) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: video_device=%p\n", __func__, video_device);
+++ continue;
+++ }
+++
+++ ret = v4l2_request_probe_video_device(video_device, avctx, pixelformat, buffersize, control, count);
+++ udev_device_unref(video_device);
+++
+++ if (!ret)
+++ break;
+++ }
+++
+++ av_freep(&interfaces);
+++ return ret;
+++
+++fail:
+++ av_freep(&interfaces);
+++ if (ctx->media_fd >= 0) {
+++ close(ctx->media_fd);
+++ ctx->media_fd = -1;
+++ }
+++ return ret;
+++}
+++
+++int ff_v4l2_request_init(AVCodecContext *avctx, uint32_t pixelformat, uint32_t buffersize, struct v4l2_ext_control *control, int count)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret = AVERROR(EINVAL);
+++ struct udev *udev;
+++ struct udev_enumerate *enumerate;
+++ struct udev_list_entry *devices;
+++ struct udev_list_entry *entry;
+++ struct udev_device *device;
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p hw_device_ctx=%p hw_frames_ctx=%p\n", __func__, avctx, avctx->hw_device_ctx, avctx->hw_frames_ctx);
+++
+++ ctx->media_fd = -1;
+++ ctx->video_fd = -1;
+++ ctx->timestamp = 0;
+++
+++ udev = udev_new();
+++ if (!udev) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: allocating udev context failed\n", __func__);
+++ ret = AVERROR(ENOMEM);
+++ goto fail;
+++ }
+++
+++ enumerate = udev_enumerate_new(udev);
+++ if (!enumerate) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: allocating udev enumerator failed\n", __func__);
+++ ret = AVERROR(ENOMEM);
+++ goto fail;
+++ }
+++
+++ udev_enumerate_add_match_subsystem(enumerate, "media");
+++ udev_enumerate_scan_devices(enumerate);
+++
+++ devices = udev_enumerate_get_list_entry(enumerate);
+++ udev_list_entry_foreach(entry, devices) {
+++ const char *path = udev_list_entry_get_name(entry);
+++ if (!path)
+++ continue;
+++
+++ device = udev_device_new_from_syspath(udev, path);
+++ if (!device)
+++ continue;
+++
+++ ret = v4l2_request_probe_media_device(device, avctx, pixelformat, buffersize, control, count);
+++ udev_device_unref(device);
+++
+++ if (!ret)
+++ break;
+++ }
+++
+++ udev_enumerate_unref(enumerate);
+++
+++ if (!ret)
+++ ret = v4l2_request_init_context(avctx);
+++
+++fail:
+++ udev_unref(udev);
+++ return ret;
+++}
+++
+++int ff_v4l2_request_uninit(AVCodecContext *avctx)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p ctx=%p\n", __func__, avctx, ctx);
+++
+++ if (ctx->video_fd >= 0) {
+++ ret = ioctl(ctx->video_fd, VIDIOC_STREAMOFF, &ctx->output_type);
+++ if (ret < 0)
+++ av_log(avctx, AV_LOG_ERROR, "%s: output stream off failed, %s (%d)\n", __func__, strerror(errno), errno);
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_STREAMOFF, &ctx->format.type);
+++ if (ret < 0)
+++ av_log(avctx, AV_LOG_ERROR, "%s: capture stream off failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ }
+++
+++ if (avctx->hw_frames_ctx) {
+++ AVHWFramesContext *hwfc = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+++ av_buffer_pool_flush(hwfc->pool);
+++ }
+++
+++ if (ctx->video_fd >= 0)
+++ close(ctx->video_fd);
+++
+++ if (ctx->media_fd >= 0)
+++ close(ctx->media_fd);
+++
+++ return 0;
+++}
+++
+++static int v4l2_request_buffer_alloc(AVCodecContext *avctx, V4L2RequestBuffer *buf, enum v4l2_buf_type type)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ int ret;
+++ struct v4l2_plane planes[1] = {};
+++ struct v4l2_create_buffers buffers = {
+++ .count = 1,
+++ .memory = V4L2_MEMORY_MMAP,
+++ .format.type = type,
+++ };
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p buf=%p type=%u\n", __func__, avctx, buf, type);
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_G_FMT, &buffers.format);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: get format failed for type %u, %s (%d)\n", __func__, type, strerror(errno), errno);
+++ return ret;
+++ }
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(buffers.format.type)) {
+++ av_log(avctx, AV_LOG_DEBUG, "%s: pixelformat=%d width=%u height=%u bytesperline=%u sizeimage=%u num_planes=%u\n", __func__, buffers.format.fmt.pix_mp.pixelformat, buffers.format.fmt.pix_mp.width, buffers.format.fmt.pix_mp.height, buffers.format.fmt.pix_mp.plane_fmt[0].bytesperline, buffers.format.fmt.pix_mp.plane_fmt[0].sizeimage, buffers.format.fmt.pix_mp.num_planes);
+++ } else {
+++ av_log(avctx, AV_LOG_DEBUG, "%s: pixelformat=%d width=%u height=%u bytesperline=%u sizeimage=%u\n", __func__, buffers.format.fmt.pix.pixelformat, buffers.format.fmt.pix.width, buffers.format.fmt.pix.height, buffers.format.fmt.pix.bytesperline, buffers.format.fmt.pix.sizeimage);
+++ }
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_CREATE_BUFS, &buffers);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: create buffers failed for type %u, %s (%d)\n", __func__, type, strerror(errno), errno);
+++ return ret;
+++ }
+++
+++ if (V4L2_TYPE_IS_MULTIPLANAR(type)) {
+++ buf->width = buffers.format.fmt.pix_mp.width;
+++ buf->height = buffers.format.fmt.pix_mp.height;
+++ buf->size = buffers.format.fmt.pix_mp.plane_fmt[0].sizeimage;
+++ buf->buffer.length = 1;
+++ buf->buffer.m.planes = planes;
+++ } else {
+++ buf->width = buffers.format.fmt.pix.width;
+++ buf->height = buffers.format.fmt.pix.height;
+++ buf->size = buffers.format.fmt.pix.sizeimage;
+++ }
+++
+++ buf->index = buffers.index;
+++ buf->capabilities = buffers.capabilities;
+++ buf->used = 0;
+++
+++ buf->buffer.type = type;
+++ buf->buffer.memory = V4L2_MEMORY_MMAP;
+++ buf->buffer.index = buf->index;
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_QUERYBUF, &buf->buffer);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: query buffer %d failed, %s (%d)\n", __func__, buf->index, strerror(errno), errno);
+++ return ret;
+++ }
+++
+++ if (V4L2_TYPE_IS_OUTPUT(type)) {
+++ void *addr = mmap(NULL, buf->size, PROT_READ | PROT_WRITE, MAP_SHARED, ctx->video_fd, V4L2_TYPE_IS_MULTIPLANAR(type) ? buf->buffer.m.planes[0].m.mem_offset : buf->buffer.m.offset);
+++ if (addr == MAP_FAILED) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: mmap failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ return -1;
+++ }
+++
+++ buf->addr = (uint8_t*)addr;
+++ } else {
+++ struct v4l2_exportbuffer exportbuffer = {
+++ .type = type,
+++ .index = buf->index,
+++ .flags = O_RDONLY,
+++ };
+++
+++ ret = ioctl(ctx->video_fd, VIDIOC_EXPBUF, &exportbuffer);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: export buffer %d failed, %s (%d)\n", __func__, buf->index, strerror(errno), errno);
+++ return ret;
+++ }
+++
+++ buf->fd = exportbuffer.fd;
+++ }
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: buf=%p index=%d fd=%d addr=%p width=%u height=%u size=%u\n", __func__, buf, buf->index, buf->fd, buf->addr, buf->width, buf->height, buf->size);
+++ return 0;
+++}
+++
+++static void v4l2_request_buffer_free(V4L2RequestBuffer *buf)
+++{
+++ av_log(NULL, AV_LOG_DEBUG, "%s: buf=%p index=%d fd=%d addr=%p width=%u height=%u size=%u\n", __func__, buf, buf->index, buf->fd, buf->addr, buf->width, buf->height, buf->size);
+++
+++ if (buf->addr)
+++ munmap(buf->addr, buf->size);
+++
+++ if (buf->fd >= 0)
+++ close(buf->fd);
+++}
+++
+++static void v4l2_request_frame_free(void *opaque, uint8_t *data)
+++{
+++ AVCodecContext *avctx = opaque;
+++ V4L2RequestDescriptor *req = (V4L2RequestDescriptor*)data;
+++
+++ av_log(NULL, AV_LOG_DEBUG, "%s: avctx=%p data=%p request_fd=%d\n", __func__, avctx, data, req->request_fd);
+++
+++ if (req->request_fd >= 0)
+++ close(req->request_fd);
+++
+++ v4l2_request_buffer_free(&req->capture);
+++ v4l2_request_buffer_free(&req->output);
+++
+++ av_free(data);
+++}
+++
+++static AVBufferRef *v4l2_request_frame_alloc(void *opaque, size_t size)
+++{
+++ AVCodecContext *avctx = opaque;
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ V4L2RequestDescriptor *req;
+++ AVBufferRef *ref;
+++ uint8_t *data;
+++ int ret;
+++
+++ data = av_mallocz(size);
+++ if (!data)
+++ return NULL;
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p size=%d data=%p\n", __func__, avctx, size, data);
+++
+++ ref = av_buffer_create(data, size, v4l2_request_frame_free, avctx, 0);
+++ if (!ref) {
+++ av_freep(&data);
+++ return NULL;
+++ }
+++
+++ req = (V4L2RequestDescriptor*)data;
+++ req->request_fd = -1;
+++ req->output.fd = -1;
+++ req->capture.fd = -1;
+++
+++ ret = v4l2_request_buffer_alloc(avctx, &req->output, ctx->output_type);
+++ if (ret < 0) {
+++ av_buffer_unref(&ref);
+++ return NULL;
+++ }
+++
+++ ret = v4l2_request_buffer_alloc(avctx, &req->capture, ctx->format.type);
+++ if (ret < 0) {
+++ av_buffer_unref(&ref);
+++ return NULL;
+++ }
+++
+++ ret = ioctl(ctx->media_fd, MEDIA_IOC_REQUEST_ALLOC, &req->request_fd);
+++ if (ret < 0) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: request alloc failed, %s (%d)\n", __func__, strerror(errno), errno);
+++ av_buffer_unref(&ref);
+++ return NULL;
+++ }
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p size=%d data=%p request_fd=%d\n", __func__, avctx, size, data, req->request_fd);
+++ return ref;
+++}
+++
+++static void v4l2_request_pool_free(void *opaque)
+++{
+++ av_log(NULL, AV_LOG_DEBUG, "%s: opaque=%p\n", __func__, opaque);
+++}
+++
+++static void v4l2_request_hwframe_ctx_free(AVHWFramesContext *hwfc)
+++{
+++ av_log(NULL, AV_LOG_DEBUG, "%s: hwfc=%p pool=%p\n", __func__, hwfc, hwfc->pool);
+++
+++ av_buffer_pool_uninit(&hwfc->pool);
+++}
+++
+++int ff_v4l2_request_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
+++{
+++ V4L2RequestContext *ctx = avctx->internal->hwaccel_priv_data;
+++ AVHWFramesContext *hwfc = (AVHWFramesContext*)hw_frames_ctx->data;
+++
+++ hwfc->format = AV_PIX_FMT_DRM_PRIME;
+++ hwfc->sw_format = AV_PIX_FMT_NV12;
+++ if (V4L2_TYPE_IS_MULTIPLANAR(ctx->format.type)) {
+++ hwfc->width = ctx->format.fmt.pix_mp.width;
+++ hwfc->height = ctx->format.fmt.pix_mp.height;
+++ } else {
+++ hwfc->width = ctx->format.fmt.pix.width;
+++ hwfc->height = ctx->format.fmt.pix.height;
+++ }
+++
+++ hwfc->pool = av_buffer_pool_init2(sizeof(V4L2RequestDescriptor), avctx, v4l2_request_frame_alloc, v4l2_request_pool_free);
+++ if (!hwfc->pool)
+++ return AVERROR(ENOMEM);
+++
+++ hwfc->free = v4l2_request_hwframe_ctx_free;
+++
+++ hwfc->initial_pool_size = 1;
+++
+++ switch (avctx->codec_id) {
+++ case AV_CODEC_ID_VP9:
+++ hwfc->initial_pool_size += 8;
+++ break;
+++ case AV_CODEC_ID_VP8:
+++ hwfc->initial_pool_size += 3;
+++ break;
+++ default:
+++ hwfc->initial_pool_size += 2;
+++ }
+++
+++ av_log(avctx, AV_LOG_DEBUG, "%s: avctx=%p ctx=%p hw_frames_ctx=%p hwfc=%p pool=%p width=%d height=%d initial_pool_size=%d\n", __func__, avctx, ctx, hw_frames_ctx, hwfc, hwfc->pool, hwfc->width, hwfc->height, hwfc->initial_pool_size);
+++
+++ return 0;
+++}
++--- /dev/null
+++++ b/libavcodec/v4l2_request.h
++@@ -0,0 +1,77 @@
+++/*
+++ * This file is part of FFmpeg.
+++ *
+++ * FFmpeg is free software; you can redistribute it and/or
+++ * modify it under the terms of the GNU Lesser General Public
+++ * License as published by the Free Software Foundation; either
+++ * version 2.1 of the License, or (at your option) any later version.
+++ *
+++ * FFmpeg is distributed in the hope that it will be useful,
+++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+++ * Lesser General Public License for more details.
+++ *
+++ * You should have received a copy of the GNU Lesser General Public
+++ * License along with FFmpeg; if not, write to the Free Software
+++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+++ */
+++
+++#ifndef AVCODEC_V4L2_REQUEST_H
+++#define AVCODEC_V4L2_REQUEST_H
+++
+++#include <linux/videodev2.h>
+++
+++#include "libavutil/hwcontext_drm.h"
+++
+++typedef struct V4L2RequestContext {
+++ int video_fd;
+++ int media_fd;
+++ enum v4l2_buf_type output_type;
+++ struct v4l2_format format;
+++ int timestamp;
+++} V4L2RequestContext;
+++
+++typedef struct V4L2RequestBuffer {
+++ int index;
+++ int fd;
+++ uint8_t *addr;
+++ uint32_t width;
+++ uint32_t height;
+++ uint32_t size;
+++ uint32_t used;
+++ uint32_t capabilities;
+++ struct v4l2_buffer buffer;
+++} V4L2RequestBuffer;
+++
+++typedef struct V4L2RequestDescriptor {
+++ AVDRMFrameDescriptor drm;
+++ int request_fd;
+++ V4L2RequestBuffer output;
+++ V4L2RequestBuffer capture;
+++} V4L2RequestDescriptor;
+++
+++uint64_t ff_v4l2_request_get_capture_timestamp(AVFrame *frame);
+++
+++int ff_v4l2_request_reset_frame(AVCodecContext *avctx, AVFrame *frame);
+++
+++int ff_v4l2_request_append_output_buffer(AVCodecContext *avctx, AVFrame *frame, const uint8_t *data, uint32_t size);
+++
+++int ff_v4l2_request_set_controls(AVCodecContext *avctx, struct v4l2_ext_control *control, int count);
+++
+++int ff_v4l2_request_get_controls(AVCodecContext *avctx, struct v4l2_ext_control *control, int count);
+++
+++int ff_v4l2_request_query_control(AVCodecContext *avctx, struct v4l2_query_ext_ctrl *control);
+++
+++int ff_v4l2_request_query_control_default_value(AVCodecContext *avctx, uint32_t id);
+++
+++int ff_v4l2_request_decode_slice(AVCodecContext *avctx, AVFrame *frame, struct v4l2_ext_control *control, int count, int first_slice, int last_slice);
+++
+++int ff_v4l2_request_decode_frame(AVCodecContext *avctx, AVFrame *frame, struct v4l2_ext_control *control, int count);
+++
+++int ff_v4l2_request_init(AVCodecContext *avctx, uint32_t pixelformat, uint32_t buffersize, struct v4l2_ext_control *control, int count);
+++
+++int ff_v4l2_request_uninit(AVCodecContext *avctx);
+++
+++int ff_v4l2_request_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx);
+++
+++#endif /* AVCODEC_V4L2_REQUEST_H */
++--- /dev/null
+++++ b/libavcodec/v4l2_request_h264.c
++@@ -0,0 +1,457 @@
+++/*
+++ * This file is part of FFmpeg.
+++ *
+++ * FFmpeg is free software; you can redistribute it and/or
+++ * modify it under the terms of the GNU Lesser General Public
+++ * License as published by the Free Software Foundation; either
+++ * version 2.1 of the License, or (at your option) any later version.
+++ *
+++ * FFmpeg is distributed in the hope that it will be useful,
+++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+++ * Lesser General Public License for more details.
+++ *
+++ * You should have received a copy of the GNU Lesser General Public
+++ * License along with FFmpeg; if not, write to the Free Software
+++ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+++ */
+++
+++#include "h264dec.h"
+++#include "hwconfig.h"
+++#include "v4l2_request.h"
+++
+++#define OUTPUT_BUFFER_SIZE (4 * 1024 * 1024)
+++
+++typedef struct V4L2RequestControlsH264 {
+++ struct v4l2_ctrl_h264_sps sps;
+++ struct v4l2_ctrl_h264_pps pps;
+++ struct v4l2_ctrl_h264_scaling_matrix scaling_matrix;
+++ struct v4l2_ctrl_h264_decode_params decode_params;
+++ struct v4l2_ctrl_h264_slice_params slice_params;
+++ struct v4l2_ctrl_h264_pred_weights pred_weights;
+++ int pred_weights_required;
+++ int first_slice;
+++ int num_slices;
+++} V4L2RequestControlsH264;
+++
+++typedef struct V4L2RequestContextH264 {
+++ V4L2RequestContext base;
+++ int decode_mode;
+++ int start_code;
+++} V4L2RequestContextH264;
+++
+++static uint8_t nalu_slice_start_code[] = { 0x00, 0x00, 0x01 };
+++
+++static void fill_weight_factors(struct v4l2_h264_weight_factors *factors, int list, const H264SliceContext *sl)
+++{
+++ for (int i = 0; i < sl->ref_count[list]; i++) {
+++ if (sl->pwt.luma_weight_flag[list]) {
+++ factors->luma_weight[i] = sl->pwt.luma_weight[i][list][0];
+++ factors->luma_offset[i] = sl->pwt.luma_weight[i][list][1];
+++ } else {
+++ factors->luma_weight[i] = 1 << sl->pwt.luma_log2_weight_denom;
+++ factors->luma_offset[i] = 0;
+++ }
+++ for (int j = 0; j < 2; j++) {
+++ if (sl->pwt.chroma_weight_flag[list]) {
+++ factors->chroma_weight[i][j] = sl->pwt.chroma_weight[i][list][j][0];
+++ factors->chroma_offset[i][j] = sl->pwt.chroma_weight[i][list][j][1];
+++ } else {
+++ factors->chroma_weight[i][j] = 1 << sl->pwt.chroma_log2_weight_denom;
+++ factors->chroma_offset[i][j] = 0;
+++ }
+++ }
+++ }
+++}
+++
+++static void fill_dpb_entry(struct v4l2_h264_dpb_entry *entry, const H264Picture *pic)
+++{
+++ entry->reference_ts = ff_v4l2_request_get_capture_timestamp(pic->f);
+++ entry->pic_num = pic->pic_id;
+++ entry->frame_num = pic->frame_num;
+++ entry->fields = pic->reference & V4L2_H264_FRAME_REF;
+++ entry->flags = V4L2_H264_DPB_ENTRY_FLAG_VALID;
+++ if (entry->fields)
+++ entry->flags |= V4L2_H264_DPB_ENTRY_FLAG_ACTIVE;
+++ if (pic->long_ref)
+++ entry->flags |= V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM;
+++ if (pic->field_picture)
+++ entry->flags |= V4L2_H264_DPB_ENTRY_FLAG_FIELD;
+++ if (pic->field_poc[0] != INT_MAX)
+++ entry->top_field_order_cnt = pic->field_poc[0];
+++ if (pic->field_poc[1] != INT_MAX)
+++ entry->bottom_field_order_cnt = pic->field_poc[1];
+++}
+++
+++static void fill_dpb(struct v4l2_ctrl_h264_decode_params *decode, const H264Context *h)
+++{
+++ int entries = 0;
+++
+++ for (int i = 0; i < h->short_ref_count; i++) {
+++ const H264Picture *pic = h->short_ref[i];
+++ if (pic && (pic->field_poc[0] != INT_MAX || pic->field_poc[1] != INT_MAX))
+++ fill_dpb_entry(&decode->dpb[entries++], pic);
+++ }
+++
+++ if (!h->long_ref_count)
+++ return;
+++
+++ for (int i = 0; i < FF_ARRAY_ELEMS(h->long_ref); i++) {
+++ const H264Picture *pic = h->long_ref[i];
+++ if (pic && (pic->field_poc[0] != INT_MAX || pic->field_poc[1] != INT_MAX))
+++ fill_dpb_entry(&decode->dpb[entries++], pic);
+++ }
+++}
+++
+++static void fill_ref_list(struct v4l2_h264_reference *reference, struct v4l2_ctrl_h264_decode_params *decode, const H264Ref *ref)
+++{
+++ uint64_t timestamp;
+++
+++ if (!ref->parent)
+++ return;
+++
+++ timestamp = ff_v4l2_request_get_capture_timestamp(ref->parent->f);
+++
+++ for (uint8_t i = 0; i < FF_ARRAY_ELEMS(decode->dpb); i++) {
+++ struct v4l2_h264_dpb_entry *entry = &decode->dpb[i];
+++ if ((entry->flags & V4L2_H264_DPB_ENTRY_FLAG_VALID) &&
+++ entry->reference_ts == timestamp) {
+++ reference->fields = ref->reference & V4L2_H264_FRAME_REF;
+++ reference->index = i;
+++ return;
+++ }
+++ }
+++}
+++
+++static void fill_sps(struct v4l2_ctrl_h264_sps *ctrl, const H264Context *h)
+++{
+++ const SPS *sps = h->ps.sps;
+++
+++ *ctrl = (struct v4l2_ctrl_h264_sps) {
+++ .profile_idc = sps->profile_idc,
+++ .constraint_set_flags = sps->constraint_set_flags,
+++ .level_idc = sps->level_idc,
+++ .seq_parameter_set_id = sps->sps_id,
+++ .chroma_format_idc = sps->chroma_format_idc,
+++ .bit_depth_luma_minus8 = sps->bit_depth_luma - 8,
+++ .bit_depth_chroma_minus8 = sps->bit_depth_chroma - 8,
+++ .log2_max_frame_num_minus4 = sps->log2_max_frame_num - 4,
+++ .pic_order_cnt_type = sps->poc_type,
+++ .log2_max_pic_order_cnt_lsb_minus4 = sps->log2_max_poc_lsb - 4,
+++ .max_num_ref_frames = sps->ref_frame_count,
+++ .num_ref_frames_in_pic_order_cnt_cycle = sps->poc_cycle_length,
+++ .offset_for_non_ref_pic = sps->offset_for_non_ref_pic,
+++ .offset_for_top_to_bottom_field = sps->offset_for_top_to_bottom_field,
+++ .pic_width_in_mbs_minus1 = h->mb_width - 1,
+++ .pic_height_in_map_units_minus1 = sps->frame_mbs_only_flag ? h->mb_height - 1 : h->mb_height / 2 - 1,
+++ };
+++
+++ if (sps->poc_cycle_length > 0 && sps->poc_cycle_length <= 255)
+++ memcpy(ctrl->offset_for_ref_frame, sps->offset_for_ref_frame, sps->poc_cycle_length * sizeof(ctrl->offset_for_ref_frame[0]));
+++
+++ if (sps->residual_color_transform_flag)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE;
+++ if (sps->transform_bypass)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS;
+++ if (sps->delta_pic_order_always_zero_flag)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO;
+++ if (sps->gaps_in_frame_num_allowed_flag)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_GAPS_IN_FRAME_NUM_VALUE_ALLOWED;
+++ if (sps->frame_mbs_only_flag)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY;
+++ if (sps->mb_aff)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD;
+++ if (sps->direct_8x8_inference_flag)
+++ ctrl->flags |= V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE;
+++}
+++
+++static void fill_pps(struct v4l2_ctrl_h264_pps *ctrl, const H264Context *h)
+++{
+++ const SPS *sps = h->ps.sps;
+++ const PPS *pps = h->ps.pps;
+++ const H264SliceContext *sl = &h->slice_ctx[0];
+++ int qp_bd_offset = 6 * (sps->bit_depth_luma - 8);
+++
+++ *ctrl = (struct v4l2_ctrl_h264_pps) {
+++ .pic_parameter_set_id = sl->pps_id,
+++ .seq_parameter_set_id = pps->sps_id,
+++ .num_slice_groups_minus1 = pps->slice_group_count - 1,
+++ .num_ref_idx_l0_default_active_minus1 = pps->ref_count[0] - 1,
+++ .num_ref_idx_l1_default_active_minus1 = pps->ref_count[1] - 1,
+++ .weighted_bipred_idc = pps->weighted_bipred_idc,
+++ .pic_init_qp_minus26 = pps->init_qp - 26 - qp_bd_offset,
+++ .pic_init_qs_minus26 = pps->init_qs - 26 - qp_bd_offset,
+++ .chroma_qp_index_offset = pps->chroma_qp_index_offset[0],
+++ .second_chroma_qp_index_offset = pps->chroma_qp_index_offset[1],
+++ };
+++
+++ if (pps->cabac)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE;
+++ if (pps->pic_order_present)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT;
+++ if (pps->weighted_pred)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_WEIGHTED_PRED;
+++ if (pps->deblocking_filter_parameters_present)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT;
+++ if (pps->constrained_intra_pred)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED;
+++ if (pps->redundant_pic_cnt_present)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT;
+++ if (pps->transform_8x8_mode)
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE;
+++
+++ /* FFmpeg always provide a scaling matrix */
+++ ctrl->flags |= V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT;
+++}
+++
+++static int v4l2_request_h264_start_frame(AVCodecContext *avctx,
+++ av_unused const uint8_t *buffer,
+++ av_unused uint32_t size)
+++{
+++ const H264Context *h = avctx->priv_data;
+++ const PPS *pps = h->ps.pps;
+++ const SPS *sps = h->ps.sps;
+++ const H264SliceContext *sl = &h->slice_ctx[0];
+++ V4L2RequestControlsH264 *controls = h->cur_pic_ptr->hwaccel_picture_private;
+++
+++ fill_sps(&controls->sps, h);
+++ fill_pps(&controls->pps, h);
+++
+++ memcpy(controls->scaling_matrix.scaling_list_4x4, pps->scaling_matrix4, sizeof(controls->scaling_matrix.scaling_list_4x4));
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[0], pps->scaling_matrix8[0], sizeof(controls->scaling_matrix.scaling_list_8x8[0]));
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[1], pps->scaling_matrix8[3], sizeof(controls->scaling_matrix.scaling_list_8x8[1]));
+++
+++ if (sps->chroma_format_idc == 3) {
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[2], pps->scaling_matrix8[1], sizeof(controls->scaling_matrix.scaling_list_8x8[2]));
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[3], pps->scaling_matrix8[4], sizeof(controls->scaling_matrix.scaling_list_8x8[3]));
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[4], pps->scaling_matrix8[2], sizeof(controls->scaling_matrix.scaling_list_8x8[4]));
+++ memcpy(controls->scaling_matrix.scaling_list_8x8[5], pps->scaling_matrix8[5], sizeof(controls->scaling_matrix.scaling_list_8x8[5]));
+++ }
+++
+++ controls->decode_params = (struct v4l2_ctrl_h264_decode_params) {
+++ .nal_ref_idc = h->nal_ref_idc,
+++ .frame_num = h->poc.frame_num,
+++ .top_field_order_cnt = h->cur_pic_ptr->field_poc[0] != INT_MAX ? h->cur_pic_ptr->field_poc[0] : 0,
+++ .bottom_field_order_cnt = h->cur_pic_ptr->field_poc[1] != INT_MAX ? h->cur_pic_ptr->field_poc[1] : 0,
+++ .idr_pic_id = sl->idr_pic_id,
+++ .pic_order_cnt_lsb = sl->poc_lsb,
+++ .delta_pic_order_cnt_bottom = sl->delta_poc_bottom,
+++ .delta_pic_order_cnt0 = sl->delta_poc[0],
+++ .delta_pic_order_cnt1 = sl->delta_poc[1],
+++ /* size in bits of dec_ref_pic_marking() syntax element. */
+++ .dec_ref_pic_marking_bit_size = sl->ref_pic_marking_bit_size,
+++ /* size in bits of pic order count syntax. */
+++ .pic_order_cnt_bit_size = sl->pic_order_cnt_bit_size,
+++ .slice_group_change_cycle = 0, /* slice group not supported by FFmpeg */
+++ };
+++
+++ if (h->picture_idr)
+++ controls->decode_params.flags |= V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC;
+++ if (FIELD_PICTURE(h))
+++ controls->decode_params.flags |= V4L2_H264_DECODE_PARAM_FLAG_FIELD_PIC;
+++ if (h->picture_structure == PICT_BOTTOM_FIELD)
+++ controls->decode_params.flags |= V4L2_H264_DECODE_PARAM_FLAG_BOTTOM_FIELD;
+++
+++ fill_dpb(&controls->decode_params, h);
+++
+++ controls->first_slice = !FIELD_PICTURE(h) || h->first_field;
+++ controls->num_slices = 0;
+++
+++ return ff_v4l2_request_reset_frame(avctx, h->cur_pic_ptr->f);
+++}
+++
+++static int v4l2_request_h264_queue_decode(AVCodecContext *avctx, int last_slice)
+++{
+++ const H264Context *h = avctx->priv_data;
+++ V4L2RequestControlsH264 *controls = h->cur_pic_ptr->hwaccel_picture_private;
+++ V4L2RequestContextH264 *ctx = avctx->internal->hwaccel_priv_data;
+++
+++ struct v4l2_ext_control control[] = {
+++ {
+++ .id = V4L2_CID_STATELESS_H264_SPS,
+++ .ptr = &controls->sps,
+++ .size = sizeof(controls->sps),
+++ },
+++ {
+++ .id = V4L2_CID_STATELESS_H264_PPS,
+++ .ptr = &controls->pps,
+++ .size = sizeof(controls->pps),
+++ },
+++ {
+++ .id = V4L2_CID_STATELESS_H264_SCALING_MATRIX,
+++ .ptr = &controls->scaling_matrix,
+++ .size = sizeof(controls->scaling_matrix),
+++ },
+++ {
+++ .id = V4L2_CID_STATELESS_H264_DECODE_PARAMS,
+++ .ptr = &controls->decode_params,
+++ .size = sizeof(controls->decode_params),
+++ },
+++ {
+++ .id = V4L2_CID_STATELESS_H264_SLICE_PARAMS,
+++ .ptr = &controls->slice_params,
+++ .size = sizeof(controls->slice_params),
+++ },
+++ {
+++ .id = V4L2_CID_STATELESS_H264_PRED_WEIGHTS,
+++ .ptr = &controls->pred_weights,
+++ .size = sizeof(controls->pred_weights),
+++ },
+++ };
+++
+++ if (ctx->decode_mode == V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED) {
+++ int count = FF_ARRAY_ELEMS(control) - (controls->pred_weights_required ? 0 : 1);
+++ return ff_v4l2_request_decode_slice(avctx, h->cur_pic_ptr->f, control, count, controls->first_slice, last_slice);
+++ }
+++
+++ return ff_v4l2_request_decode_frame(avctx, h->cur_pic_ptr->f, control, FF_ARRAY_ELEMS(control) - 2);
+++}
+++
+++static int v4l2_request_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
+++{
+++ const H264Context *h = avctx->priv_data;
+++ const PPS *pps = h->ps.pps;
+++ const H264SliceContext *sl = &h->slice_ctx[0];
+++ V4L2RequestControlsH264 *controls = h->cur_pic_ptr->hwaccel_picture_private;
+++ V4L2RequestContextH264 *ctx = avctx->internal->hwaccel_priv_data;
+++ int i, ret, count;
+++
+++ if (ctx->decode_mode == V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED && controls->num_slices) {
+++ ret = v4l2_request_h264_queue_decode(avctx, 0);
+++ if (ret)
+++ return ret;
+++
+++ ff_v4l2_request_reset_frame(avctx, h->cur_pic_ptr->f);
+++ controls->first_slice = 0;
+++ }
+++
+++ if (ctx->start_code == V4L2_STATELESS_H264_START_CODE_ANNEX_B) {
+++ ret = ff_v4l2_request_append_output_buffer(avctx, h->cur_pic_ptr->f, nalu_slice_start_code, 3);
+++ if (ret)
+++ return ret;
+++ }
+++
+++ ret = ff_v4l2_request_append_output_buffer(avctx, h->cur_pic_ptr->f, buffer, size);
+++ if (ret)
+++ return ret;
+++
+++ if (ctx->decode_mode != V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED)
+++ return 0;
+++
+++ controls->slice_params = (struct v4l2_ctrl_h264_slice_params) {
+++ /* offset in bits to slice_data() from the beginning of this slice. */
+++ .header_bit_size = get_bits_count(&sl->gb),
+++ .first_mb_in_slice = sl->first_mb_addr,
+++ .slice_type = ff_h264_get_slice_type(sl),
+++ .colour_plane_id = 0, /* separate colour plane not supported by FFmpeg */
+++ .redundant_pic_cnt = sl->redundant_pic_count,
+++ .cabac_init_idc = sl->cabac_init_idc,
+++ .slice_qp_delta = sl->qscale - pps->init_qp,
+++ .slice_qs_delta = 0, /* not implemented by FFmpeg */
+++ .disable_deblocking_filter_idc = sl->deblocking_filter < 2 ? !sl->deblocking_filter : sl->deblocking_filter,
+++ .slice_alpha_c0_offset_div2 = sl->slice_alpha_c0_offset / 2,
+++ .slice_beta_offset_div2 = sl->slice_beta_offset / 2,
+++ .num_ref_idx_l0_active_minus1 = sl->list_count > 0 ? sl->ref_count[0] - 1 : 0,
+++ .num_ref_idx_l1_active_minus1 = sl->list_count > 1 ? sl->ref_count[1] - 1 : 0,
+++ };
+++
+++ if (sl->slice_type == AV_PICTURE_TYPE_B && sl->direct_spatial_mv_pred)
+++ controls->slice_params.flags |= V4L2_H264_SLICE_FLAG_DIRECT_SPATIAL_MV_PRED;
+++ /* V4L2_H264_SLICE_FLAG_SP_FOR_SWITCH: not implemented by FFmpeg */
+++
+++ controls->pred_weights_required = V4L2_H264_CTRL_PRED_WEIGHTS_REQUIRED(&controls->pps, &controls->slice_params);
+++ if (controls->pred_weights_required) {
+++ controls->pred_weights.chroma_log2_weight_denom = sl->pwt.chroma_log2_weight_denom;
+++ controls->pred_weights.luma_log2_weight_denom = sl->pwt.luma_log2_weight_denom;
+++ }
+++
+++ count = sl->list_count > 0 ? sl->ref_count[0] : 0;
+++ for (i = 0; i < count; i++)
+++ fill_ref_list(&controls->slice_params.ref_pic_list0[i], &controls->decode_params, &sl->ref_list[0][i]);
+++ if (count && controls->pred_weights_required)
+++ fill_weight_factors(&controls->pred_weights.weight_factors[0], 0, sl);
+++
+++ count = sl->list_count > 1 ? sl->ref_count[1] : 0;
+++ for (i = 0; i < count; i++)
+++ fill_ref_list(&controls->slice_params.ref_pic_list1[i], &controls->decode_params, &sl->ref_list[1][i]);
+++ if (count && controls->pred_weights_required)
+++ fill_weight_factors(&controls->pred_weights.weight_factors[1], 1, sl);
+++
+++ controls->num_slices++;
+++ return 0;
+++}
+++
+++static int v4l2_request_h264_end_frame(AVCodecContext *avctx)
+++{
+++ const H264Context *h = avctx->priv_data;
+++
+++ return v4l2_request_h264_queue_decode(avctx, !FIELD_PICTURE(h) || !h->first_field);
+++}
+++
+++static int v4l2_request_h264_set_controls(AVCodecContext *avctx)
+++{
+++ V4L2RequestContextH264 *ctx = avctx->internal->hwaccel_priv_data;
+++
+++ struct v4l2_ext_control control[] = {
+++ { .id = V4L2_CID_STATELESS_H264_DECODE_MODE, },
+++ { .id = V4L2_CID_STATELESS_H264_START_CODE, },
+++ };
+++
+++ ctx->decode_mode = ff_v4l2_request_query_control_default_value(avctx, V4L2_CID_STATELESS_H264_DECODE_MODE);
+++ if (ctx->decode_mode != V4L2_STATELESS_H264_DECODE_MODE_SLICE_BASED &&
+++ ctx->decode_mode != V4L2_STATELESS_H264_DECODE_MODE_FRAME_BASED) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: unsupported decode mode, %d\n", __func__, ctx->decode_mode);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ ctx->start_code = ff_v4l2_request_query_control_default_value(avctx, V4L2_CID_STATELESS_H264_START_CODE);
+++ if (ctx->start_code != V4L2_STATELESS_H264_START_CODE_NONE &&
+++ ctx->start_code != V4L2_STATELESS_H264_START_CODE_ANNEX_B) {
+++ av_log(avctx, AV_LOG_ERROR, "%s: unsupported start code, %d\n", __func__, ctx->start_code);
+++ return AVERROR(EINVAL);
+++ }
+++
+++ control[0].value = ctx->decode_mode;
+++ control[1].value = ctx->start_code;
+++
+++ return ff_v4l2_request_set_controls(avctx, control, FF_ARRAY_ELEMS(control));
+++}
+++
+++static int v4l2_request_h264_init(AVCodecContext *avctx)
+++{
+++ const H264Context *h = avctx->priv_data;
+++ struct v4l2_ctrl_h264_sps sps;
+++ int ret;
+++
+++ struct v4l2_ext_control control[] = {
+++ {
+++ .id = V4L2_CID_STATELESS_H264_SPS,
+++ .ptr = &sps,
+++ .size = sizeof(sps),
+++ },
+++ };
+++
+++ fill_sps(&sps, h);
+++
+++ ret = ff_v4l2_request_init(avctx, V4L2_PIX_FMT_H264_SLICE, OUTPUT_BUFFER_SIZE, control, FF_ARRAY_ELEMS(control));
+++ if (ret)
+++ return ret;
+++
+++ return v4l2_request_h264_set_controls(avctx);
+++}
+++
+++const AVHWAccel ff_h264_v4l2request_hwaccel = {
+++ .name = "h264_v4l2request",
+++ .type = AVMEDIA_TYPE_VIDEO,
+++ .id = AV_CODEC_ID_H264,
+++ .pix_fmt = AV_PIX_FMT_DRM_PRIME,
+++ .start_frame = v4l2_request_h264_start_frame,
+++ .decode_slice = v4l2_request_h264_decode_slice,
+++ .end_frame = v4l2_request_h264_end_frame,
+++ .frame_priv_data_size = sizeof(V4L2RequestControlsH264),
+++ .init = v4l2_request_h264_init,
+++ .uninit = ff_v4l2_request_uninit,
+++ .priv_data_size = sizeof(V4L2RequestContextH264),
+++ .frame_params = ff_v4l2_request_frame_params,
+++ .caps_internal = HWACCEL_CAP_ASYNC_SAFE,
+++};
++--- a/libavutil/buffer.c
+++++ b/libavutil/buffer.c
++@@ -305,6 +305,13 @@ static void buffer_pool_free(AVBufferPoo
++ av_freep(&pool);
++ }
++
+++void av_buffer_pool_flush(AVBufferPool *pool)
+++{
+++ ff_mutex_lock(&pool->mutex);
+++ buffer_pool_flush(pool);
+++ ff_mutex_unlock(&pool->mutex);
+++}
+++
++ void av_buffer_pool_uninit(AVBufferPool **ppool)
++ {
++ AVBufferPool *pool;
++--- a/libavutil/buffer.h
+++++ b/libavutil/buffer.h
++@@ -316,6 +316,11 @@ AVBufferPool *av_buffer_pool_init2(size_
++ void (*pool_free)(void *opaque));
++
++ /**
+++ * Free all available buffers in a buffer pool.
+++ */
+++ void av_buffer_pool_flush(AVBufferPool *pool);
+++
+++/**
++ * Mark the pool as being available for freeing. It will actually be freed only
++ * once all the allocated buffers associated with the pool are released. Thus it
++ * is safe to call this function while some of the allocated buffers are still
++--- a/libavutil/hwcontext_drm.c
+++++ b/libavutil/hwcontext_drm.c
++@@ -53,6 +53,11 @@ static int drm_device_create(AVHWDeviceC
++ AVDRMDeviceContext *hwctx = hwdev->hwctx;
++ drmVersionPtr version;
++
+++ if (device == NULL) {
+++ hwctx->fd = -1;
+++ return 0;
+++ }
+++
++ hwctx->fd = open(device, O_RDWR);
++ if (hwctx->fd < 0)
++ return AVERROR(errno);
+diff -Nru ffmpeg-4.4.1/debian/patches/series ffmpeg-4.4.1/debian/patches/series
+--- ffmpeg-4.4.1/debian/patches/series 2021-11-21 18:48:57.000000000 +0100
++++ ffmpeg-4.4.1/debian/patches/series 2022-01-14 21:06:18.000000000 +0100
+@@ -1,2 +1,3 @@
+ 0001-avcodec-arm-sbcenc-avoid-callee-preserved-vfp-regist.patch
+ 0002-configure-arm-Don-t-add-march-to-the-compiler-if-no-.patch
++0001-add-V4L2-request-API-hwaccel.patch
+diff -Nru ffmpeg-4.4.1/debian/rules ffmpeg-4.4.1/debian/rules
+--- ffmpeg-4.4.1/debian/rules 2021-11-21 18:48:57.000000000 +0100
++++ ffmpeg-4.4.1/debian/rules 2022-01-14 21:06:18.000000000 +0100
+@@ -28,6 +28,7 @@
+ --arch=$(DEB_HOST_ARCH_CPU) \
+ --enable-gpl \
+ --disable-stripping \
++ --enable-hwaccel=h264_v4l2request \
+ --enable-gnutls \
+ --enable-ladspa \
+ --enable-libaom \
+@@ -38,6 +39,7 @@
+ --enable-libcdio \
+ --enable-libcodec2 \
+ --enable-libdav1d \
++ --enable-libdrm \
+ --enable-libflite \
+ --enable-libfontconfig \
+ --enable-libfreetype \
+@@ -61,6 +63,7 @@
+ --enable-libssh \
+ --enable-libtheora \
+ --enable-libtwolame \
++ --enable-libudev \
+ --enable-libvidstab \
+ --enable-libvorbis \
+ --enable-libvpx \
+@@ -76,7 +78,8 @@
+ --enable-openal \
+ --enable-opencl \
+ --enable-opengl \
+- --enable-sdl2
++ --enable-sdl2 \
++ --enable-v4l2-request
+
+ # link with -latomic on armel and mipsel (https://trac.ffmpeg.org/ticket/9275)
+ ifneq (,$(filter armel mipsel,$(DEB_HOST_ARCH)))
+@@ -111,11 +115,6 @@
+ --enable-libtesseract \
+ --enable-libvo_amrwbenc
+
+-# Do not enable libsmbclient support on hurd-i386
+-ifeq (,$(filter hurd-i386,$(DEB_HOST_ARCH)))
+- CONFIG_extra += --enable-libsmbclient
+-endif
+-
+ # The static libraries should not be built with PIC.
+ CONFIG_static = --disable-pic \
+ --disable-doc \
+EOF