lavc: remove libschroedinger encoding and decoding wrappers

The library has stopped being developed and Debian has removed it
from its repositories citing security issues.
The native Dirac decoder supports everything the library has and basic
encoding support is still provided via the native vc2 (Dirac Pro, intra
only version of Dirac) encoder. Hence, there's no reason to still support
linking to the library and potentially leading users into security issues.

1 files changed, 0 insertions, 221 deletions

diff --git a/libavcodec/libschroedinger.c b/libavcodec/libschroedinger.c
deleted file mode 100644
index 4bb0f12d89..0000000000
--- a/libavcodec/libschroedinger.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot 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
-* function definitions common to libschroedinger decoder and encoder
-*/
-
-#include "libavutil/attributes.h"
-#include "libavutil/mem.h"
-#include "libschroedinger.h"
-#include "internal.h"
-
-static const SchroVideoFormatInfo ff_schro_video_format_info[] = {
-    { 640,  480,  24000, 1001},
-    { 176,  120,  15000, 1001},
-    { 176,  144,  25,    2   },
-    { 352,  240,  15000, 1001},
-    { 352,  288,  25,    2   },
-    { 704,  480,  15000, 1001},
-    { 704,  576,  25,    2   },
-    { 720,  480,  30000, 1001},
-    { 720,  576,  25,    1   },
-    { 1280, 720,  60000, 1001},
-    { 1280, 720,  50,    1   },
-    { 1920, 1080, 30000, 1001},
-    { 1920, 1080, 25,    1   },
-    { 1920, 1080, 60000, 1001},
-    { 1920, 1080, 50,    1   },
-    { 2048, 1080, 24,    1   },
-    { 4096, 2160, 24,    1   },
-};
-
-static unsigned int get_video_format_idx(AVCodecContext *avctx)
-{
-    unsigned int ret_idx = 0;
-    unsigned int idx;
-    unsigned int num_formats = sizeof(ff_schro_video_format_info) /
-                               sizeof(ff_schro_video_format_info[0]);
-
-    for (idx = 1; idx < num_formats; ++idx) {
-        const SchroVideoFormatInfo *vf = &ff_schro_video_format_info[idx];
-        if (avctx->width  == vf->width &&
-            avctx->height == vf->height) {
-            ret_idx = idx;
-            if (avctx->time_base.den == vf->frame_rate_num &&
-                avctx->time_base.num == vf->frame_rate_denom)
-                return idx;
-        }
-    }
-    return ret_idx;
-}
-
-av_cold void ff_schro_queue_init(FFSchroQueue *queue)
-{
-    queue->p_head = queue->p_tail = NULL;
-    queue->size = 0;
-}
-
-void ff_schro_queue_free(FFSchroQueue *queue, void (*free_func)(void *))
-{
-    while (queue->p_head)
-        free_func(ff_schro_queue_pop(queue));
-}
-
-int ff_schro_queue_push_back(FFSchroQueue *queue, void *p_data)
-{
-    FFSchroQueueElement *p_new = av_mallocz(sizeof(FFSchroQueueElement));
-
-    if (!p_new)
-        return -1;
-
-    p_new->data = p_data;
-
-    if (!queue->p_head)
-        queue->p_head = p_new;
-    else
-        queue->p_tail->next = p_new;
-    queue->p_tail = p_new;
-
-    ++queue->size;
-    return 0;
-}
-
-void *ff_schro_queue_pop(FFSchroQueue *queue)
-{
-    FFSchroQueueElement *top = queue->p_head;
-
-    if (top) {
-        void *data = top->data;
-        queue->p_head = queue->p_head->next;
-        --queue->size;
-        av_freep(&top);
-        return data;
-    }
-
-    return NULL;
-}
-
-/**
-* Schroedinger video preset table. Ensure that this tables matches up correctly
-* with the ff_schro_video_format_info table.
-*/
-static const SchroVideoFormatEnum ff_schro_video_formats[]={
-    SCHRO_VIDEO_FORMAT_CUSTOM     ,
-    SCHRO_VIDEO_FORMAT_QSIF       ,
-    SCHRO_VIDEO_FORMAT_QCIF       ,
-    SCHRO_VIDEO_FORMAT_SIF        ,
-    SCHRO_VIDEO_FORMAT_CIF        ,
-    SCHRO_VIDEO_FORMAT_4SIF       ,
-    SCHRO_VIDEO_FORMAT_4CIF       ,
-    SCHRO_VIDEO_FORMAT_SD480I_60  ,
-    SCHRO_VIDEO_FORMAT_SD576I_50  ,
-    SCHRO_VIDEO_FORMAT_HD720P_60  ,
-    SCHRO_VIDEO_FORMAT_HD720P_50  ,
-    SCHRO_VIDEO_FORMAT_HD1080I_60 ,
-    SCHRO_VIDEO_FORMAT_HD1080I_50 ,
-    SCHRO_VIDEO_FORMAT_HD1080P_60 ,
-    SCHRO_VIDEO_FORMAT_HD1080P_50 ,
-    SCHRO_VIDEO_FORMAT_DC2K_24    ,
-    SCHRO_VIDEO_FORMAT_DC4K_24    ,
-};
-
-SchroVideoFormatEnum ff_get_schro_video_format_preset(AVCodecContext *avctx)
-{
-    unsigned int num_formats = sizeof(ff_schro_video_formats) /
-                               sizeof(ff_schro_video_formats[0]);
-
-    unsigned int idx = get_video_format_idx(avctx);
-
-    return (idx < num_formats) ? ff_schro_video_formats[idx] :
-                                 SCHRO_VIDEO_FORMAT_CUSTOM;
-}
-
-int ff_get_schro_frame_format (SchroChromaFormat schro_pix_fmt,
-                               SchroFrameFormat  *schro_frame_fmt)
-{
-    unsigned int num_formats = sizeof(schro_pixel_format_map) /
-                               sizeof(schro_pixel_format_map[0]);
-
-    int idx;
-
-    for (idx = 0; idx < num_formats; ++idx) {
-        if (schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {
-            *schro_frame_fmt = schro_pixel_format_map[idx].schro_frame_fmt;
-            return 0;
-        }
-    }
-    return -1;
-}
-
-static void free_schro_frame(SchroFrame *frame, void *priv)
-{
-    AVFrame *p_pic = priv;
-    av_frame_free(&p_pic);
-}
-
-SchroFrame *ff_create_schro_frame(AVCodecContext *avctx,
-                                  SchroFrameFormat schro_frame_fmt)
-{
-    AVFrame *p_pic;
-    SchroFrame *p_frame;
-    int y_width, uv_width;
-    int y_height, uv_height;
-    int i;
-
-    y_width   = avctx->width;
-    y_height  = avctx->height;
-    uv_width  = y_width  >> (SCHRO_FRAME_FORMAT_H_SHIFT(schro_frame_fmt));
-    uv_height = y_height >> (SCHRO_FRAME_FORMAT_V_SHIFT(schro_frame_fmt));
-
-    p_pic = av_frame_alloc();
-    if (!p_pic)
-        return NULL;
-
-    if (ff_get_buffer(avctx, p_pic, AV_GET_BUFFER_FLAG_REF) < 0) {
-        av_frame_free(&p_pic);
-        return NULL;
-    }
-
-    p_frame         = schro_frame_new();
-    p_frame->format = schro_frame_fmt;
-    p_frame->width  = y_width;
-    p_frame->height = y_height;
-    schro_frame_set_free_callback(p_frame, free_schro_frame, p_pic);
-
-    for (i = 0; i < 3; ++i) {
-        p_frame->components[i].width  = i ? uv_width : y_width;
-        p_frame->components[i].stride = p_pic->linesize[i];
-        p_frame->components[i].height = i ? uv_height : y_height;
-        p_frame->components[i].length =
-                 p_frame->components[i].stride * p_frame->components[i].height;
-        p_frame->components[i].data   = p_pic->data[i];
-
-        if (i) {
-            p_frame->components[i].v_shift =
-                SCHRO_FRAME_FORMAT_V_SHIFT(p_frame->format);
-            p_frame->components[i].h_shift =
-                SCHRO_FRAME_FORMAT_H_SHIFT(p_frame->format);
-        }
-    }
-
-    return p_frame;
-}