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Diffstat (limited to 'libavcodec/libschroedinger.c')
| -rw-r--r-- | libavcodec/libschroedinger.c | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/libavcodec/libschroedinger.c b/libavcodec/libschroedinger.c deleted file mode 100644 index af3000f371..0000000000 --- a/libavcodec/libschroedinger.c +++ /dev/null @@ -1,222 +0,0 @@ -/* - * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com > - * - * This file is part of Libav. - * - * Libav 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. - * - * Libav 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 Libav; 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); - av_log(avctx, AV_LOG_ERROR, "Unable to allocate buffer\n"); - 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; -} |