/*
* Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
-* @file libschroedinger.c
-* function definitions common to libschroedingerdec.c and libschroedingerenc.c
+* @file
+* function definitions common to libschroedinger decoder and encoder
*/
-#include "libdirac_libschro.h"
+#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_dirac_schro_video_format_info table in libdirac_libschro.c.
+* with the ff_schro_video_format_info table.
*/
static const SchroVideoFormatEnum ff_schro_video_formats[]={
SCHRO_VIDEO_FORMAT_CUSTOM ,
SCHRO_VIDEO_FORMAT_DC4K_24 ,
};
-SchroVideoFormatEnum ff_get_schro_video_format_preset(AVCodecContext *avccontext)
+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 = ff_dirac_schro_get_video_format_idx (avccontext);
+ unsigned int idx = get_video_format_idx(avctx);
- return (idx < num_formats) ?
- ff_schro_video_formats[idx] : SCHRO_VIDEO_FORMAT_CUSTOM;
+ 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(ffmpeg_schro_pixel_format_map) /
- sizeof(ffmpeg_schro_pixel_format_map[0]);
+ 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 (ffmpeg_schro_pixel_format_map[idx].schro_pix_fmt == schro_pix_fmt) {
- *schro_frame_fmt =
- ffmpeg_schro_pixel_format_map[idx].schro_frame_fmt;
+ 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, (void *)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;
+}
projects / ffmpeg / blobdiff