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avformat: add a Tile Grid stream group type

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This will be used to support tiled image formats like HEIF.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2024-01-22 14:35:33 -03:00
parent d6083f503d
commit 25a10677d1
6 changed files with 237 additions and 2 deletions
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30
libavformat/dump.c
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@@ -22,6 +22,7 @@
#include <stdio.h>
#include <stdint.h>
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.h"
#include "libavutil/display.h"
#include "libavutil/iamf.h"
@@ -747,6 +748,35 @@ static void dump_stream_group(const AVFormatContext *ic, uint8_t *printed,
}
break;
}
case AV_STREAM_GROUP_PARAMS_TILE_GRID: {
const AVStreamGroupTileGrid *tile_grid = stg->params.tile_grid;
AVCodecContext *avctx = avcodec_alloc_context3(NULL);
const char *ptr = NULL;
av_log(NULL, AV_LOG_INFO, " Tile Grid:");
if (avctx && stg->nb_streams && !avcodec_parameters_to_context(avctx, stg->streams[0]->codecpar)) {
avctx->width = tile_grid->width;
avctx->height = tile_grid->height;
avctx->coded_width = tile_grid->coded_width;
avctx->coded_height = tile_grid->coded_height;
if (ic->dump_separator)
av_opt_set(avctx, "dump_separator", ic->dump_separator, 0);
buf[0] = 0;
avcodec_string(buf, sizeof(buf), avctx, is_output);
ptr = av_stristr(buf, " ");
}
avcodec_free_context(&avctx);
if (ptr)
av_log(NULL, AV_LOG_INFO, "%s", ptr);
dump_disposition(stg->disposition, AV_LOG_INFO);
av_log(NULL, AV_LOG_INFO, "\n");
dump_metadata(NULL, stg->metadata, " ", AV_LOG_INFO);
for (int i = 0; i < stg->nb_streams; i++) {
const AVStream *st = stg->streams[i];
dump_stream_format(ic, st->index, i, index, is_output, AV_LOG_VERBOSE);
printed[st->index] = 1;
}
break;
}
default:
break;
}