chasing indexing error

1 files changed, 0 insertions, 377 deletions

diff --git a/ffmpeg/libavcodec/libtheoraenc.c b/ffmpeg/libavcodec/libtheoraenc.c
deleted file mode 100644
index 4c90822..0000000
--- a/ffmpeg/libavcodec/libtheoraenc.c
+++ /dev/null
@@ -1,377 +0,0 @@
-/*
- * Copyright (c) 2006 Paul Richards <paul.richards@gmail.com>
- *
- * 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
- * @brief Theora encoder using libtheora.
- * @author Paul Richards <paul.richards@gmail.com>
- *
- * A lot of this is copy / paste from other output codecs in
- * libavcodec or pure guesswork (or both).
- *
- * I have used t_ prefixes on variables which are libtheora types
- * and o_ prefixes on variables which are libogg types.
- */
-
-/* FFmpeg includes */
-#include "libavutil/common.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/pixdesc.h"
-#include "libavutil/log.h"
-#include "libavutil/base64.h"
-#include "avcodec.h"
-#include "internal.h"
-
-/* libtheora includes */
-#include <theora/theoraenc.h>
-
-typedef struct TheoraContext {
-    th_enc_ctx *t_state;
-    uint8_t    *stats;
-    int         stats_size;
-    int         stats_offset;
-    int         uv_hshift;
-    int         uv_vshift;
-    int         keyframe_mask;
-} TheoraContext;
-
-/** Concatenate an ogg_packet into the extradata. */
-static int concatenate_packet(unsigned int* offset,
-                              AVCodecContext* avc_context,
-                              const ogg_packet* packet)
-{
-    const char* message = NULL;
-    int newsize = avc_context->extradata_size + 2 + packet->bytes;
-    int err = AVERROR_INVALIDDATA;
-
-    if (packet->bytes < 0) {
-        message = "ogg_packet has negative size";
-    } else if (packet->bytes > 0xffff) {
-        message = "ogg_packet is larger than 65535 bytes";
-    } else if (newsize < avc_context->extradata_size) {
-        message = "extradata_size would overflow";
-    } else {
-        if ((err = av_reallocp(&avc_context->extradata, newsize)) < 0) {
-            avc_context->extradata_size = 0;
-            message = "av_realloc failed";
-        }
-    }
-    if (message) {
-        av_log(avc_context, AV_LOG_ERROR, "concatenate_packet failed: %s\n", message);
-        return err;
-    }
-
-    avc_context->extradata_size = newsize;
-    AV_WB16(avc_context->extradata + (*offset), packet->bytes);
-    *offset += 2;
-    memcpy(avc_context->extradata + (*offset), packet->packet, packet->bytes);
-    (*offset) += packet->bytes;
-    return 0;
-}
-
-static int get_stats(AVCodecContext *avctx, int eos)
-{
-#ifdef TH_ENCCTL_2PASS_OUT
-    TheoraContext *h = avctx->priv_data;
-    uint8_t *buf;
-    int bytes;
-
-    bytes = th_encode_ctl(h->t_state, TH_ENCCTL_2PASS_OUT, &buf, sizeof(buf));
-    if (bytes < 0) {
-        av_log(avctx, AV_LOG_ERROR, "Error getting first pass stats\n");
-        return AVERROR_EXTERNAL;
-    }
-    if (!eos) {
-        h->stats = av_fast_realloc(h->stats, &h->stats_size,
-                                   h->stats_offset + bytes);
-        memcpy(h->stats + h->stats_offset, buf, bytes);
-        h->stats_offset += bytes;
-    } else {
-        int b64_size = AV_BASE64_SIZE(h->stats_offset);
-        // libtheora generates a summary header at the end
-        memcpy(h->stats, buf, bytes);
-        avctx->stats_out = av_malloc(b64_size);
-        av_base64_encode(avctx->stats_out, b64_size, h->stats, h->stats_offset);
-    }
-    return 0;
-#else
-    av_log(avctx, AV_LOG_ERROR, "libtheora too old to support 2pass\n");
-    return AVERROR(ENOSUP);
-#endif
-}
-
-// libtheora won't read the entire buffer we give it at once, so we have to
-// repeatedly submit it...
-static int submit_stats(AVCodecContext *avctx)
-{
-#ifdef TH_ENCCTL_2PASS_IN
-    TheoraContext *h = avctx->priv_data;
-    int bytes;
-    if (!h->stats) {
-        if (!avctx->stats_in) {
-            av_log(avctx, AV_LOG_ERROR, "No statsfile for second pass\n");
-            return AVERROR(EINVAL);
-        }
-        h->stats_size = strlen(avctx->stats_in) * 3/4;
-        h->stats      = av_malloc(h->stats_size);
-        h->stats_size = av_base64_decode(h->stats, avctx->stats_in, h->stats_size);
-    }
-    while (h->stats_size - h->stats_offset > 0) {
-        bytes = th_encode_ctl(h->t_state, TH_ENCCTL_2PASS_IN,
-                              h->stats + h->stats_offset,
-                              h->stats_size - h->stats_offset);
-        if (bytes < 0) {
-            av_log(avctx, AV_LOG_ERROR, "Error submitting stats\n");
-            return AVERROR_EXTERNAL;
-        }
-        if (!bytes)
-            return 0;
-        h->stats_offset += bytes;
-    }
-    return 0;
-#else
-    av_log(avctx, AV_LOG_ERROR, "libtheora too old to support 2pass\n");
-    return AVERROR(ENOSUP);
-#endif
-}
-
-static av_cold int encode_init(AVCodecContext* avc_context)
-{
-    th_info t_info;
-    th_comment t_comment;
-    ogg_packet o_packet;
-    unsigned int offset;
-    TheoraContext *h = avc_context->priv_data;
-    uint32_t gop_size = avc_context->gop_size;
-    int ret;
-
-    /* Set up the theora_info struct */
-    th_info_init(&t_info);
-    t_info.frame_width  = FFALIGN(avc_context->width,  16);
-    t_info.frame_height = FFALIGN(avc_context->height, 16);
-    t_info.pic_width    = avc_context->width;
-    t_info.pic_height   = avc_context->height;
-    t_info.pic_x        = 0;
-    t_info.pic_y        = 0;
-    /* Swap numerator and denominator as time_base in AVCodecContext gives the
-     * time period between frames, but theora_info needs the framerate.  */
-    t_info.fps_numerator   = avc_context->time_base.den;
-    t_info.fps_denominator = avc_context->time_base.num;
-    if (avc_context->sample_aspect_ratio.num) {
-        t_info.aspect_numerator   = avc_context->sample_aspect_ratio.num;
-        t_info.aspect_denominator = avc_context->sample_aspect_ratio.den;
-    } else {
-        t_info.aspect_numerator   = 1;
-        t_info.aspect_denominator = 1;
-    }
-
-    if (avc_context->color_primaries == AVCOL_PRI_BT470M)
-        t_info.colorspace = TH_CS_ITU_REC_470M;
-    else if (avc_context->color_primaries == AVCOL_PRI_BT470BG)
-        t_info.colorspace = TH_CS_ITU_REC_470BG;
-    else
-        t_info.colorspace = TH_CS_UNSPECIFIED;
-
-    if (avc_context->pix_fmt == AV_PIX_FMT_YUV420P)
-        t_info.pixel_fmt = TH_PF_420;
-    else if (avc_context->pix_fmt == AV_PIX_FMT_YUV422P)
-        t_info.pixel_fmt = TH_PF_422;
-    else if (avc_context->pix_fmt == AV_PIX_FMT_YUV444P)
-        t_info.pixel_fmt = TH_PF_444;
-    else {
-        av_log(avc_context, AV_LOG_ERROR, "Unsupported pix_fmt\n");
-        return AVERROR(EINVAL);
-    }
-    avcodec_get_chroma_sub_sample(avc_context->pix_fmt, &h->uv_hshift, &h->uv_vshift);
-
-    if (avc_context->flags & CODEC_FLAG_QSCALE) {
-        /* Clip global_quality in QP units to the [0 - 10] range
-           to be consistent with the libvorbis implementation.
-           Theora accepts a quality parameter which is an int value in
-           the [0 - 63] range.
-        */
-        t_info.quality        = av_clipf(avc_context->global_quality / (float)FF_QP2LAMBDA, 0, 10) * 6.3;
-        t_info.target_bitrate = 0;
-    } else {
-        t_info.target_bitrate = avc_context->bit_rate;
-        t_info.quality        = 0;
-    }
-
-    /* Now initialise libtheora */
-    h->t_state = th_encode_alloc(&t_info);
-    if (!h->t_state) {
-        av_log(avc_context, AV_LOG_ERROR, "theora_encode_init failed\n");
-        return AVERROR_EXTERNAL;
-    }
-
-    h->keyframe_mask = (1 << t_info.keyframe_granule_shift) - 1;
-    /* Clear up theora_info struct */
-    th_info_clear(&t_info);
-
-    if (th_encode_ctl(h->t_state, TH_ENCCTL_SET_KEYFRAME_FREQUENCY_FORCE,
-                      &gop_size, sizeof(gop_size))) {
-        av_log(avc_context, AV_LOG_ERROR, "Error setting GOP size\n");
-        return AVERROR_EXTERNAL;
-    }
-
-    // need to enable 2 pass (via TH_ENCCTL_2PASS_) before encoding headers
-    if (avc_context->flags & CODEC_FLAG_PASS1) {
-        if ((ret = get_stats(avc_context, 0)) < 0)
-            return ret;
-    } else if (avc_context->flags & CODEC_FLAG_PASS2) {
-        if ((ret = submit_stats(avc_context)) < 0)
-            return ret;
-    }
-
-    /*
-        Output first header packet consisting of theora
-        header, comment, and tables.
-
-        Each one is prefixed with a 16bit size, then they
-        are concatenated together into libavcodec's extradata.
-    */
-    offset = 0;
-
-    /* Headers */
-    th_comment_init(&t_comment);
-
-    while (th_encode_flushheader(h->t_state, &t_comment, &o_packet))
-        if ((ret = concatenate_packet(&offset, avc_context, &o_packet)) < 0)
-            return ret;
-
-    th_comment_clear(&t_comment);
-
-    /* Set up the output AVFrame */
-    avc_context->coded_frame = av_frame_alloc();
-
-    return 0;
-}
-
-static int encode_frame(AVCodecContext* avc_context, AVPacket *pkt,
-                        const AVFrame *frame, int *got_packet)
-{
-    th_ycbcr_buffer t_yuv_buffer;
-    TheoraContext *h = avc_context->priv_data;
-    ogg_packet o_packet;
-    int result, i, ret;
-
-    // EOS, finish and get 1st pass stats if applicable
-    if (!frame) {
-        th_encode_packetout(h->t_state, 1, &o_packet);
-        if (avc_context->flags & CODEC_FLAG_PASS1)
-            if ((ret = get_stats(avc_context, 1)) < 0)
-                return ret;
-        return 0;
-    }
-
-    /* Copy planes to the theora yuv_buffer */
-    for (i = 0; i < 3; i++) {
-        t_yuv_buffer[i].width  = FFALIGN(avc_context->width,  16) >> (i && h->uv_hshift);
-        t_yuv_buffer[i].height = FFALIGN(avc_context->height, 16) >> (i && h->uv_vshift);
-        t_yuv_buffer[i].stride = frame->linesize[i];
-        t_yuv_buffer[i].data   = frame->data[i];
-    }
-
-    if (avc_context->flags & CODEC_FLAG_PASS2)
-        if ((ret = submit_stats(avc_context)) < 0)
-            return ret;
-
-    /* Now call into theora_encode_YUVin */
-    result = th_encode_ycbcr_in(h->t_state, t_yuv_buffer);
-    if (result) {
-        const char* message;
-        switch (result) {
-        case -1:
-            message = "differing frame sizes";
-            break;
-        case TH_EINVAL:
-            message = "encoder is not ready or is finished";
-            break;
-        default:
-            message = "unknown reason";
-            break;
-        }
-        av_log(avc_context, AV_LOG_ERROR, "theora_encode_YUVin failed (%s) [%d]\n", message, result);
-        return AVERROR_EXTERNAL;
-    }
-
-    if (avc_context->flags & CODEC_FLAG_PASS1)
-        if ((ret = get_stats(avc_context, 0)) < 0)
-            return ret;
-
-    /* Pick up returned ogg_packet */
-    result = th_encode_packetout(h->t_state, 0, &o_packet);
-    switch (result) {
-    case 0:
-        /* No packet is ready */
-        return 0;
-    case 1:
-        /* Success, we have a packet */
-        break;
-    default:
-        av_log(avc_context, AV_LOG_ERROR, "theora_encode_packetout failed [%d]\n", result);
-        return AVERROR_EXTERNAL;
-    }
-
-    /* Copy ogg_packet content out to buffer */
-    if ((ret = ff_alloc_packet2(avc_context, pkt, o_packet.bytes)) < 0)
-        return ret;
-    memcpy(pkt->data, o_packet.packet, o_packet.bytes);
-
-    // HACK: assumes no encoder delay, this is true until libtheora becomes
-    // multithreaded (which will be disabled unless explicitly requested)
-    pkt->pts = pkt->dts = frame->pts;
-    avc_context->coded_frame->key_frame = !(o_packet.granulepos & h->keyframe_mask);
-    if (avc_context->coded_frame->key_frame)
-        pkt->flags |= AV_PKT_FLAG_KEY;
-    *got_packet = 1;
-
-    return 0;
-}
-
-static av_cold int encode_close(AVCodecContext* avc_context)
-{
-    TheoraContext *h = avc_context->priv_data;
-
-    th_encode_free(h->t_state);
-    av_freep(&h->stats);
-    av_freep(&avc_context->coded_frame);
-    av_freep(&avc_context->stats_out);
-    av_freep(&avc_context->extradata);
-    avc_context->extradata_size = 0;
-
-    return 0;
-}
-
-/** AVCodec struct exposed to libavcodec */
-AVCodec ff_libtheora_encoder = {
-    .name           = "libtheora",
-    .long_name      = NULL_IF_CONFIG_SMALL("libtheora Theora"),
-    .type           = AVMEDIA_TYPE_VIDEO,
-    .id             = AV_CODEC_ID_THEORA,
-    .priv_data_size = sizeof(TheoraContext),
-    .init           = encode_init,
-    .close          = encode_close,
-    .encode2        = encode_frame,
-    .capabilities   = CODEC_CAP_DELAY, // needed to get the statsfile summary
-    .pix_fmts       = (const enum AVPixelFormat[]){
-        AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_NONE
-    },
-};