FFmpeg 7.1 + cuframes input demuxer

Snapshot FFmpeg n7.1 (release tag) с применённым patch'ем для cuframes input format. Используется как FFMPEG_REPO_OVERRIDE в NickM-27/FFmpeg-Builds fork для статической сборки patched binary под Frigate (Debian 12 / glibc 2.36). Apply changes: + libavformat/cuframesdec.c (новый — реализация демуксера) M libavformat/Makefile (CONFIG_CUFRAMES_DEMUXER target) M libavformat/allformats.c (extern declaration) M configure (--enable-libcuframes option + dep check) Patch source: https://git.goldix.org/gx/cuframes (filter/ffmpeg-7.1-cuframes-demuxer.patch) History сброшена (snapshot вместо fork) потому что upstream shallow clone не позволял push в gitea. Полная история FFmpeg — на github.com/FFmpeg/FFmpeg n7.1.
2026-05-17 11:43:10 +01:00
commit dcecd42de4
8554 changed files with 2122707 additions and 0 deletions
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+/*
+ * Copyright (c) 2015 Derek Buitenhuis
+ *
+ * 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 "config_components.h"
+
+#include "libavutil/mem.h"
+#include "avfilter.h"
+#include "filters.h"
+
+#define DEFAULT_LENGTH 300
+
+typedef struct ReverseContext {
+    int nb_frames;
+    AVFrame **frames;
+    unsigned int frames_size;
+    unsigned int pts_size;
+    unsigned int duration_size;
+    int64_t *pts;
+    int64_t *duration;
+    int flush_idx;
+    int64_t nb_samples;
+} ReverseContext;
+
+static av_cold int init(AVFilterContext *ctx)
+{
+    ReverseContext *s = ctx->priv;
+
+    s->pts = av_fast_realloc(NULL, &s->pts_size,
+                             DEFAULT_LENGTH * sizeof(*(s->pts)));
+    if (!s->pts)
+        return AVERROR(ENOMEM);
+
+    s->duration = av_fast_realloc(NULL, &s->duration_size,
+                                  DEFAULT_LENGTH * sizeof(*(s->duration)));
+    if (!s->duration)
+        return AVERROR(ENOMEM);
+
+    s->frames = av_fast_realloc(NULL, &s->frames_size,
+                                DEFAULT_LENGTH * sizeof(*(s->frames)));
+    if (!s->frames)
+        return AVERROR(ENOMEM);
+
+    return 0;
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+    ReverseContext *s = ctx->priv;
+
+    while (s->nb_frames > 0) {
+        av_frame_free(&s->frames[s->nb_frames - 1]);
+        s->nb_frames--;
+    }
+
+    av_freep(&s->pts);
+    av_freep(&s->duration);
+    av_freep(&s->frames);
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+    AVFilterContext *ctx = inlink->dst;
+    ReverseContext *s    = ctx->priv;
+    void *ptr;
+
+    if (s->nb_frames + 1 > s->pts_size / sizeof(*(s->pts))) {
+        ptr = av_fast_realloc(s->pts, &s->pts_size, s->pts_size * 2);
+        if (!ptr)
+            return AVERROR(ENOMEM);
+        s->pts = ptr;
+    }
+
+    if (s->nb_frames + 1 > s->duration_size / sizeof(*(s->duration))) {
+        ptr = av_fast_realloc(s->duration, &s->duration_size, s->duration_size * 2);
+        if (!ptr)
+            return AVERROR(ENOMEM);
+        s->duration = ptr;
+    }
+
+    if (s->nb_frames + 1 > s->frames_size / sizeof(*(s->frames))) {
+        ptr = av_fast_realloc(s->frames, &s->frames_size, s->frames_size * 2);
+        if (!ptr)
+            return AVERROR(ENOMEM);
+        s->frames = ptr;
+    }
+
+    s->frames[s->nb_frames] = in;
+    s->pts[s->nb_frames]    = in->pts;
+    s->duration[s->nb_frames] = in->duration;
+    s->nb_frames++;
+
+    return 0;
+}
+
+#if CONFIG_REVERSE_FILTER
+
+static int request_frame(AVFilterLink *outlink)
+{
+    AVFilterContext *ctx = outlink->src;
+    ReverseContext *s = ctx->priv;
+    int ret;
+
+    ret = ff_request_frame(ctx->inputs[0]);
+
+    if (ret == AVERROR_EOF && s->nb_frames > 0) {
+        AVFrame *out = s->frames[s->nb_frames - 1];
+        out->duration= s->duration[s->flush_idx];
+        out->pts     = s->pts[s->flush_idx++];
+        ret          = ff_filter_frame(outlink, out);
+        s->frames[s->nb_frames - 1] = NULL;
+        s->nb_frames--;
+    }
+
+    return ret;
+}
+
+static const AVFilterPad reverse_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .filter_frame = filter_frame,
+    },
+};
+
+static const AVFilterPad reverse_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .request_frame = request_frame,
+    },
+};
+
+const AVFilter ff_vf_reverse = {
+    .name        = "reverse",
+    .description = NULL_IF_CONFIG_SMALL("Reverse a clip."),
+    .priv_size   = sizeof(ReverseContext),
+    .init        = init,
+    .uninit      = uninit,
+    FILTER_INPUTS(reverse_inputs),
+    FILTER_OUTPUTS(reverse_outputs),
+};
+
+#endif /* CONFIG_REVERSE_FILTER */
+
+#if CONFIG_AREVERSE_FILTER
+
+static void reverse_samples_planar(AVFrame *out)
+{
+    for (int p = 0; p < out->ch_layout.nb_channels; p++) {
+        switch (out->format) {
+        case AV_SAMPLE_FMT_U8P: {
+            uint8_t *dst = (uint8_t *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(uint8_t, dst[i], dst[j]);
+        }
+            break;
+        case AV_SAMPLE_FMT_S16P: {
+            int16_t *dst = (int16_t *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(int16_t, dst[i], dst[j]);
+        }
+            break;
+        case AV_SAMPLE_FMT_S32P: {
+            int32_t *dst = (int32_t *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(int32_t, dst[i], dst[j]);
+        }
+            break;
+        case AV_SAMPLE_FMT_S64P: {
+            int64_t *dst = (int64_t *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(int64_t, dst[i], dst[j]);
+        }
+            break;
+        case AV_SAMPLE_FMT_FLTP: {
+            float *dst = (float *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(float, dst[i], dst[j]);
+        }
+            break;
+        case AV_SAMPLE_FMT_DBLP: {
+            double *dst = (double *)out->extended_data[p];
+            for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+                FFSWAP(double, dst[i], dst[j]);
+        }
+            break;
+        }
+    }
+}
+
+static void reverse_samples_packed(AVFrame *out)
+{
+    const int channels = out->ch_layout.nb_channels;
+
+    switch (out->format) {
+    case AV_SAMPLE_FMT_U8: {
+        uint8_t *dst = (uint8_t *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(uint8_t, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    case AV_SAMPLE_FMT_S16: {
+        int16_t *dst = (int16_t *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(int16_t, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    case AV_SAMPLE_FMT_S32: {
+        int32_t *dst = (int32_t *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(int32_t, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    case AV_SAMPLE_FMT_S64: {
+        int64_t *dst = (int64_t *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(int64_t, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    case AV_SAMPLE_FMT_FLT: {
+        float *dst = (float *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(float, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    case AV_SAMPLE_FMT_DBL: {
+        double *dst = (double *)out->extended_data[0];
+        for (int i = 0, j = out->nb_samples - 1; i < j; i++, j--)
+            for (int p = 0; p < channels; p++)
+                FFSWAP(double, dst[i * channels + p], dst[j * channels + p]);
+    }
+        break;
+    }
+}
+
+static int areverse_request_frame(AVFilterLink *outlink)
+{
+    AVFilterContext *ctx = outlink->src;
+    ReverseContext *s = ctx->priv;
+    int ret;
+
+    ret = ff_request_frame(ctx->inputs[0]);
+
+    if (ret == AVERROR_EOF && s->nb_frames > 0) {
+        AVFrame *out = s->frames[s->nb_frames - 1];
+        out->duration = s->duration[s->flush_idx];
+        out->pts     = s->pts[s->flush_idx++] - s->nb_samples;
+        if (s->nb_frames > 1)
+            s->nb_samples += s->pts[s->flush_idx] - s->pts[s->flush_idx - 1] - out->nb_samples;
+
+        if (av_sample_fmt_is_planar(out->format))
+            reverse_samples_planar(out);
+        else
+            reverse_samples_packed(out);
+        ret = ff_filter_frame(outlink, out);
+        s->frames[s->nb_frames - 1] = NULL;
+        s->nb_frames--;
+    }
+
+    return ret;
+}
+
+static const AVFilterPad areverse_inputs[] = {
+    {
+        .name           = "default",
+        .type           = AVMEDIA_TYPE_AUDIO,
+        .flags          = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
+        .filter_frame   = filter_frame,
+    },
+};
+
+static const AVFilterPad areverse_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_AUDIO,
+        .request_frame = areverse_request_frame,
+    },
+};
+
+const AVFilter ff_af_areverse = {
+    .name          = "areverse",
+    .description   = NULL_IF_CONFIG_SMALL("Reverse an audio clip."),
+    .priv_size     = sizeof(ReverseContext),
+    .init          = init,
+    .uninit        = uninit,
+    FILTER_INPUTS(areverse_inputs),
+    FILTER_OUTPUTS(areverse_outputs),
+};
+
+#endif /* CONFIG_AREVERSE_FILTER */