making act segmenter

1 files changed, 0 insertions, 622 deletions

diff --git a/ffmpeg1/libavcodec/utvideoenc.c b/ffmpeg1/libavcodec/utvideoenc.c
deleted file mode 100644
index acb25c3..0000000
--- a/ffmpeg1/libavcodec/utvideoenc.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- * Ut Video encoder
- * Copyright (c) 2012 Jan Ekström
- *
- * 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
- */
-
-/**
- * @file
- * Ut Video encoder
- */
-
-#include "libavutil/intreadwrite.h"
-#include "avcodec.h"
-#include "internal.h"
-#include "bytestream.h"
-#include "put_bits.h"
-#include "dsputil.h"
-#include "mathops.h"
-#include "utvideo.h"
-#include "huffman.h"
-
-/* Compare huffentry symbols */
-static int huff_cmp_sym(const void *a, const void *b)
-{
-    const HuffEntry *aa = a, *bb = b;
-    return aa->sym - bb->sym;
-}
-
-static av_cold int utvideo_encode_close(AVCodecContext *avctx)
-{
-    UtvideoContext *c = avctx->priv_data;
-    int i;
-
-    av_freep(&avctx->coded_frame);
-    av_freep(&c->slice_bits);
-    for (i = 0; i < 4; i++)
-        av_freep(&c->slice_buffer[i]);
-
-    return 0;
-}
-
-static av_cold int utvideo_encode_init(AVCodecContext *avctx)
-{
-    UtvideoContext *c = avctx->priv_data;
-    int i;
-    uint32_t original_format;
-
-    c->avctx           = avctx;
-    c->frame_info_size = 4;
-    c->slice_stride    = FFALIGN(avctx->width, 32);
-
-    switch (avctx->pix_fmt) {
-    case AV_PIX_FMT_RGB24:
-        c->planes        = 3;
-        avctx->codec_tag = MKTAG('U', 'L', 'R', 'G');
-        original_format  = UTVIDEO_RGB;
-        break;
-    case AV_PIX_FMT_RGBA:
-        c->planes        = 4;
-        avctx->codec_tag = MKTAG('U', 'L', 'R', 'A');
-        original_format  = UTVIDEO_RGBA;
-        break;
-    case AV_PIX_FMT_YUV420P:
-        if (avctx->width & 1 || avctx->height & 1) {
-            av_log(avctx, AV_LOG_ERROR,
-                   "4:2:0 video requires even width and height.\n");
-            return AVERROR_INVALIDDATA;
-        }
-        c->planes        = 3;
-        avctx->codec_tag = MKTAG('U', 'L', 'Y', '0');
-        original_format  = UTVIDEO_420;
-        break;
-    case AV_PIX_FMT_YUV422P:
-        if (avctx->width & 1) {
-            av_log(avctx, AV_LOG_ERROR,
-                   "4:2:2 video requires even width.\n");
-            return AVERROR_INVALIDDATA;
-        }
-        c->planes        = 3;
-        avctx->codec_tag = MKTAG('U', 'L', 'Y', '2');
-        original_format  = UTVIDEO_422;
-        break;
-    default:
-        av_log(avctx, AV_LOG_ERROR, "Unknown pixel format: %d\n",
-               avctx->pix_fmt);
-        return AVERROR_INVALIDDATA;
-    }
-
-    ff_dsputil_init(&c->dsp, avctx);
-
-    /* Check the prediction method, and error out if unsupported */
-    if (avctx->prediction_method < 0 || avctx->prediction_method > 4) {
-        av_log(avctx, AV_LOG_WARNING,
-               "Prediction method %d is not supported in Ut Video.\n",
-               avctx->prediction_method);
-        return AVERROR_OPTION_NOT_FOUND;
-    }
-
-    if (avctx->prediction_method == FF_PRED_PLANE) {
-        av_log(avctx, AV_LOG_ERROR,
-               "Plane prediction is not supported in Ut Video.\n");
-        return AVERROR_OPTION_NOT_FOUND;
-    }
-
-    /* Convert from libavcodec prediction type to Ut Video's */
-    c->frame_pred = ff_ut_pred_order[avctx->prediction_method];
-
-    if (c->frame_pred == PRED_GRADIENT) {
-        av_log(avctx, AV_LOG_ERROR, "Gradient prediction is not supported.\n");
-        return AVERROR_OPTION_NOT_FOUND;
-    }
-
-    avctx->coded_frame = avcodec_alloc_frame();
-
-    if (!avctx->coded_frame) {
-        av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n");
-        utvideo_encode_close(avctx);
-        return AVERROR(ENOMEM);
-    }
-
-    /* extradata size is 4 * 32bit */
-    avctx->extradata_size = 16;
-
-    avctx->extradata = av_mallocz(avctx->extradata_size +
-                                  FF_INPUT_BUFFER_PADDING_SIZE);
-
-    if (!avctx->extradata) {
-        av_log(avctx, AV_LOG_ERROR, "Could not allocate extradata.\n");
-        utvideo_encode_close(avctx);
-        return AVERROR(ENOMEM);
-    }
-
-    for (i = 0; i < c->planes; i++) {
-        c->slice_buffer[i] = av_malloc(c->slice_stride * (avctx->height + 2) +
-                                       FF_INPUT_BUFFER_PADDING_SIZE);
-        if (!c->slice_buffer[i]) {
-            av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 1.\n");
-            utvideo_encode_close(avctx);
-            return AVERROR(ENOMEM);
-        }
-    }
-
-    /*
-     * Set the version of the encoder.
-     * Last byte is "implementation ID", which is
-     * obtained from the creator of the format.
-     * Libavcodec has been assigned with the ID 0xF0.
-     */
-    AV_WB32(avctx->extradata, MKTAG(1, 0, 0, 0xF0));
-
-    /*
-     * Set the "original format"
-     * Not used for anything during decoding.
-     */
-    AV_WL32(avctx->extradata + 4, original_format);
-
-    /* Write 4 as the 'frame info size' */
-    AV_WL32(avctx->extradata + 8, c->frame_info_size);
-
-    /*
-     * Set how many slices are going to be used.
-     * Set one slice for now.
-     */
-    c->slices = 1;
-
-    /* Set compression mode */
-    c->compression = COMP_HUFF;
-
-    /*
-     * Set the encoding flags:
-     * - Slice count minus 1
-     * - Interlaced encoding mode flag, set to zero for now.
-     * - Compression mode (none/huff)
-     * And write the flags.
-     */
-    c->flags  = (c->slices - 1) << 24;
-    c->flags |= 0 << 11; // bit field to signal interlaced encoding mode
-    c->flags |= c->compression;
-
-    AV_WL32(avctx->extradata + 12, c->flags);
-
-    return 0;
-}
-
-static void mangle_rgb_planes(uint8_t *dst[4], int dst_stride, uint8_t *src,
-                              int step, int stride, int width, int height)
-{
-    int i, j;
-    int k = 2 * dst_stride;
-    unsigned int g;
-
-    for (j = 0; j < height; j++) {
-        if (step == 3) {
-            for (i = 0; i < width * step; i += step) {
-                g         = src[i + 1];
-                dst[0][k] = g;
-                g        += 0x80;
-                dst[1][k] = src[i + 2] - g;
-                dst[2][k] = src[i + 0] - g;
-                k++;
-            }
-        } else {
-            for (i = 0; i < width * step; i += step) {
-                g         = src[i + 1];
-                dst[0][k] = g;
-                g        += 0x80;
-                dst[1][k] = src[i + 2] - g;
-                dst[2][k] = src[i + 0] - g;
-                dst[3][k] = src[i + 3];
-                k++;
-            }
-        }
-        k += dst_stride - width;
-        src += stride;
-    }
-}
-
-/* Write data to a plane, no prediction applied */
-static void write_plane(uint8_t *src, uint8_t *dst, int stride,
-                        int width, int height)
-{
-    int i, j;
-
-    for (j = 0; j < height; j++) {
-        for (i = 0; i < width; i++)
-            *dst++ = src[i];
-
-        src += stride;
-    }
-}
-
-/* Write data to a plane with left prediction */
-static void left_predict(uint8_t *src, uint8_t *dst, int stride,
-                         int width, int height)
-{
-    int i, j;
-    uint8_t prev;
-
-    prev = 0x80; /* Set the initial value */
-    for (j = 0; j < height; j++) {
-        for (i = 0; i < width; i++) {
-            *dst++ = src[i] - prev;
-            prev   = src[i];
-        }
-        src += stride;
-    }
-}
-
-/* Write data to a plane with median prediction */
-static void median_predict(UtvideoContext *c, uint8_t *src, uint8_t *dst, int stride,
-                           int width, int height)
-{
-    int i, j;
-    int A, B;
-    uint8_t prev;
-
-    /* First line uses left neighbour prediction */
-    prev = 0x80; /* Set the initial value */
-    for (i = 0; i < width; i++) {
-        *dst++ = src[i] - prev;
-        prev   = src[i];
-    }
-
-    if (height == 1)
-        return;
-
-    src += stride;
-
-    /*
-     * Second line uses top prediction for the first sample,
-     * and median for the rest.
-     */
-    A = B = 0;
-
-    /* Rest of the coded part uses median prediction */
-    for (j = 1; j < height; j++) {
-        c->dsp.sub_hfyu_median_prediction(dst, src - stride, src, width, &A, &B);
-        dst += width;
-        src += stride;
-    }
-}
-
-/* Count the usage of values in a plane */
-static void count_usage(uint8_t *src, int width,
-                        int height, uint64_t *counts)
-{
-    int i, j;
-
-    for (j = 0; j < height; j++) {
-        for (i = 0; i < width; i++) {
-            counts[src[i]]++;
-        }
-        src += width;
-    }
-}
-
-/* Calculate the actual huffman codes from the code lengths */
-static void calculate_codes(HuffEntry *he)
-{
-    int last, i;
-    uint32_t code;
-
-    qsort(he, 256, sizeof(*he), ff_ut_huff_cmp_len);
-
-    last = 255;
-    while (he[last].len == 255 && last)
-        last--;
-
-    code = 1;
-    for (i = last; i >= 0; i--) {
-        he[i].code  = code >> (32 - he[i].len);
-        code       += 0x80000000u >> (he[i].len - 1);
-    }
-
-    qsort(he, 256, sizeof(*he), huff_cmp_sym);
-}
-
-/* Write huffman bit codes to a memory block */
-static int write_huff_codes(uint8_t *src, uint8_t *dst, int dst_size,
-                            int width, int height, HuffEntry *he)
-{
-    PutBitContext pb;
-    int i, j;
-    int count;
-
-    init_put_bits(&pb, dst, dst_size);
-
-    /* Write the codes */
-    for (j = 0; j < height; j++) {
-        for (i = 0; i < width; i++)
-            put_bits(&pb, he[src[i]].len, he[src[i]].code);
-
-        src += width;
-    }
-
-    /* Pad output to a 32bit boundary */
-    count = put_bits_count(&pb) & 0x1F;
-
-    if (count)
-        put_bits(&pb, 32 - count, 0);
-
-    /* Get the amount of bits written */
-    count = put_bits_count(&pb);
-
-    /* Flush the rest with zeroes */
-    flush_put_bits(&pb);
-
-    return count;
-}
-
-static int encode_plane(AVCodecContext *avctx, uint8_t *src,
-                        uint8_t *dst, int stride,
-                        int width, int height, PutByteContext *pb)
-{
-    UtvideoContext *c        = avctx->priv_data;
-    uint8_t  lengths[256];
-    uint64_t counts[256]     = { 0 };
-
-    HuffEntry he[256];
-
-    uint32_t offset = 0, slice_len = 0;
-    int      i, sstart, send = 0;
-    int      symbol;
-
-    /* Do prediction / make planes */
-    switch (c->frame_pred) {
-    case PRED_NONE:
-        for (i = 0; i < c->slices; i++) {
-            sstart = send;
-            send   = height * (i + 1) / c->slices;
-            write_plane(src + sstart * stride, dst + sstart * width,
-                        stride, width, send - sstart);
-        }
-        break;
-    case PRED_LEFT:
-        for (i = 0; i < c->slices; i++) {
-            sstart = send;
-            send   = height * (i + 1) / c->slices;
-            left_predict(src + sstart * stride, dst + sstart * width,
-                         stride, width, send - sstart);
-        }
-        break;
-    case PRED_MEDIAN:
-        for (i = 0; i < c->slices; i++) {
-            sstart = send;
-            send   = height * (i + 1) / c->slices;
-            median_predict(c, src + sstart * stride, dst + sstart * width,
-                           stride, width, send - sstart);
-        }
-        break;
-    default:
-        av_log(avctx, AV_LOG_ERROR, "Unknown prediction mode: %d\n",
-               c->frame_pred);
-        return AVERROR_OPTION_NOT_FOUND;
-    }
-
-    /* Count the usage of values */
-    count_usage(dst, width, height, counts);
-
-    /* Check for a special case where only one symbol was used */
-    for (symbol = 0; symbol < 256; symbol++) {
-        /* If non-zero count is found, see if it matches width * height */
-        if (counts[symbol]) {
-            /* Special case if only one symbol was used */
-            if (counts[symbol] == width * (int64_t)height) {
-                /*
-                 * Write a zero for the single symbol
-                 * used in the plane, else 0xFF.
-                 */
-                for (i = 0; i < 256; i++) {
-                    if (i == symbol)
-                        bytestream2_put_byte(pb, 0);
-                    else
-                        bytestream2_put_byte(pb, 0xFF);
-                }
-
-                /* Write zeroes for lengths */
-                for (i = 0; i < c->slices; i++)
-                    bytestream2_put_le32(pb, 0);
-
-                /* And that's all for that plane folks */
-                return 0;
-            }
-            break;
-        }
-    }
-
-    /* Calculate huffman lengths */
-    ff_huff_gen_len_table(lengths, counts);
-
-    /*
-     * Write the plane's header into the output packet:
-     * - huffman code lengths (256 bytes)
-     * - slice end offsets (gotten from the slice lengths)
-     */
-    for (i = 0; i < 256; i++) {
-        bytestream2_put_byte(pb, lengths[i]);
-
-        he[i].len = lengths[i];
-        he[i].sym = i;
-    }
-
-    /* Calculate the huffman codes themselves */
-    calculate_codes(he);
-
-    send = 0;
-    for (i = 0; i < c->slices; i++) {
-        sstart  = send;
-        send    = height * (i + 1) / c->slices;
-
-        /*
-         * Write the huffman codes to a buffer,
-         * get the offset in bits and convert to bytes.
-         */
-        offset += write_huff_codes(dst + sstart * width, c->slice_bits,
-                                   width * (send - sstart), width,
-                                   send - sstart, he) >> 3;
-
-        slice_len = offset - slice_len;
-
-        /* Byteswap the written huffman codes */
-        c->dsp.bswap_buf((uint32_t *) c->slice_bits,
-                         (uint32_t *) c->slice_bits,
-                         slice_len >> 2);
-
-        /* Write the offset to the stream */
-        bytestream2_put_le32(pb, offset);
-
-        /* Seek to the data part of the packet */
-        bytestream2_seek_p(pb, 4 * (c->slices - i - 1) +
-                           offset - slice_len, SEEK_CUR);
-
-        /* Write the slices' data into the output packet */
-        bytestream2_put_buffer(pb, c->slice_bits, slice_len);
-
-        /* Seek back to the slice offsets */
-        bytestream2_seek_p(pb, -4 * (c->slices - i - 1) - offset,
-                           SEEK_CUR);
-
-        slice_len = offset;
-    }
-
-    /* And at the end seek to the end of written slice(s) */
-    bytestream2_seek_p(pb, offset, SEEK_CUR);
-
-    return 0;
-}
-
-static int utvideo_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
-                                const AVFrame *pic, int *got_packet)
-{
-    UtvideoContext *c = avctx->priv_data;
-    PutByteContext pb;
-
-    uint32_t frame_info;
-
-    uint8_t *dst;
-
-    int width = avctx->width, height = avctx->height;
-    int i, ret = 0;
-
-    /* Allocate a new packet if needed, and set it to the pointer dst */
-    ret = ff_alloc_packet2(avctx, pkt, (256 + 4 * c->slices + width * height) *
-                           c->planes + 4);
-
-    if (ret < 0)
-        return ret;
-
-    dst = pkt->data;
-
-    bytestream2_init_writer(&pb, dst, pkt->size);
-
-    av_fast_malloc(&c->slice_bits, &c->slice_bits_size,
-                   width * height + FF_INPUT_BUFFER_PADDING_SIZE);
-
-    if (!c->slice_bits) {
-        av_log(avctx, AV_LOG_ERROR, "Cannot allocate temporary buffer 2.\n");
-        return AVERROR(ENOMEM);
-    }
-
-    /* In case of RGB, mangle the planes to Ut Video's format */
-    if (avctx->pix_fmt == AV_PIX_FMT_RGBA || avctx->pix_fmt == AV_PIX_FMT_RGB24)
-        mangle_rgb_planes(c->slice_buffer, c->slice_stride, pic->data[0],
-                          c->planes, pic->linesize[0], width, height);
-
-    /* Deal with the planes */
-    switch (avctx->pix_fmt) {
-    case AV_PIX_FMT_RGB24:
-    case AV_PIX_FMT_RGBA:
-        for (i = 0; i < c->planes; i++) {
-            ret = encode_plane(avctx, c->slice_buffer[i] + 2 * c->slice_stride,
-                               c->slice_buffer[i], c->slice_stride,
-                               width, height, &pb);
-
-            if (ret) {
-                av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
-                return ret;
-            }
-        }
-        break;
-    case AV_PIX_FMT_YUV422P:
-        for (i = 0; i < c->planes; i++) {
-            ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
-                               pic->linesize[i], width >> !!i, height, &pb);
-
-            if (ret) {
-                av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
-                return ret;
-            }
-        }
-        break;
-    case AV_PIX_FMT_YUV420P:
-        for (i = 0; i < c->planes; i++) {
-            ret = encode_plane(avctx, pic->data[i], c->slice_buffer[0],
-                               pic->linesize[i], width >> !!i, height >> !!i,
-                               &pb);
-
-            if (ret) {
-                av_log(avctx, AV_LOG_ERROR, "Error encoding plane %d.\n", i);
-                return ret;
-            }
-        }
-        break;
-    default:
-        av_log(avctx, AV_LOG_ERROR, "Unknown pixel format: %d\n",
-               avctx->pix_fmt);
-        return AVERROR_INVALIDDATA;
-    }
-
-    /*
-     * Write frame information (LE 32bit unsigned)
-     * into the output packet.
-     * Contains the prediction method.
-     */
-    frame_info = c->frame_pred << 8;
-    bytestream2_put_le32(&pb, frame_info);
-
-    /*
-     * At least currently Ut Video is IDR only.
-     * Set flags accordingly.
-     */
-    avctx->coded_frame->key_frame = 1;
-    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
-
-    pkt->size   = bytestream2_tell_p(&pb);
-    pkt->flags |= AV_PKT_FLAG_KEY;
-
-    /* Packet should be done */
-    *got_packet = 1;
-
-    return 0;
-}
-
-AVCodec ff_utvideo_encoder = {
-    .name           = "utvideo",
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_UTVIDEO,
-    .priv_data_size = sizeof(UtvideoContext),
-    .init           = utvideo_encode_init,
-    .encode2        = utvideo_encode_frame,
-    .close          = utvideo_encode_close,
-    .pix_fmts       = (const enum AVPixelFormat[]) {
-                          AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, AV_PIX_FMT_YUV422P,
-                          AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE
-                      },
-    .long_name      = NULL_IF_CONFIG_SMALL("Ut Video"),
-};