diff options
Diffstat (limited to 'pjmedia/src/pjmedia/ffmpeg_util.c')
| -rw-r--r-- | pjmedia/src/pjmedia/ffmpeg_util.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/pjmedia/src/pjmedia/ffmpeg_util.c b/pjmedia/src/pjmedia/ffmpeg_util.c new file mode 100644 index 00000000..55dc48ab --- /dev/null +++ b/pjmedia/src/pjmedia/ffmpeg_util.c @@ -0,0 +1,153 @@ +/* $Id$ */ +/* + * Copyright (C) 2010-2011 Teluu Inc. (http://www.teluu.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <pjmedia/types.h> +#include <pj/errno.h> + +#if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL + +#include "ffmpeg_util.h" +#include <libavformat/avformat.h> + +/* Conversion table between pjmedia_format_id and PixelFormat */ +static const struct ffmpeg_fmt_table_t +{ + pjmedia_format_id id; + enum PixelFormat pf; +} ffmpeg_fmt_table[] = +{ + { PJMEDIA_FORMAT_RGBA, PIX_FMT_RGBA}, + { PJMEDIA_FORMAT_RGB24,PIX_FMT_RGB24}, + { PJMEDIA_FORMAT_BGRA, PIX_FMT_BGRA}, + + { PJMEDIA_FORMAT_AYUV, PIX_FMT_NONE}, + { PJMEDIA_FORMAT_YUY2, PIX_FMT_YUYV422}, + { PJMEDIA_FORMAT_UYVY, PIX_FMT_UYVY422}, + { PJMEDIA_FORMAT_I420, PIX_FMT_YUV420P}, + { PJMEDIA_FORMAT_YV12, PIX_FMT_YUV422P}, + { PJMEDIA_FORMAT_I420JPEG, PIX_FMT_YUVJ420P}, + { PJMEDIA_FORMAT_I422JPEG, PIX_FMT_YUVJ422P}, +}; + +/* Conversion table between pjmedia_format_id and CodecID */ +static const struct ffmpeg_codec_table_t +{ + pjmedia_format_id id; + enum CodecID codec_id; +} ffmpeg_codec_table[] = +{ + {PJMEDIA_FORMAT_H261, CODEC_ID_H261}, + {PJMEDIA_FORMAT_H263, CODEC_ID_H263}, + {PJMEDIA_FORMAT_H263P, CODEC_ID_H263P}, + {PJMEDIA_FORMAT_H264, CODEC_ID_H264}, + {PJMEDIA_FORMAT_MPEG1VIDEO, CODEC_ID_MPEG1VIDEO}, + {PJMEDIA_FORMAT_MPEG2VIDEO, CODEC_ID_MPEG2VIDEO}, + {PJMEDIA_FORMAT_MPEG4, CODEC_ID_MPEG4}, + {PJMEDIA_FORMAT_MJPEG, CODEC_ID_MJPEG}, +#if LIBAVCODEC_VERSION_MAJOR < 53 + {PJMEDIA_FORMAT_XVID, CODEC_ID_XVID}, +#endif +}; + +static int pjmedia_ffmpeg_ref_cnt; + +void pjmedia_ffmpeg_add_ref() +{ + if (pjmedia_ffmpeg_ref_cnt++ == 0) { + av_register_all(); + } +} + +void pjmedia_ffmpeg_dec_ref() +{ + if (pjmedia_ffmpeg_ref_cnt-- == 1) { + /* How to shutdown ffmpeg? */ + } + + if (pjmedia_ffmpeg_ref_cnt < 0) pjmedia_ffmpeg_ref_cnt = 0; +} + +pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id, + enum PixelFormat *pixel_format) +{ + unsigned i; + for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_fmt_table); ++i) { + const struct ffmpeg_fmt_table_t *t = &ffmpeg_fmt_table[i]; + if (t->id==fmt_id && t->pf != PIX_FMT_NONE) { + *pixel_format = t->pf; + return PJ_SUCCESS; + } + } + + *pixel_format = PIX_FMT_NONE; + return PJ_ENOTFOUND; +} + +pj_status_t PixelFormat_to_pjmedia_format_id(enum PixelFormat pf, + pjmedia_format_id *fmt_id) +{ + unsigned i; + for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_fmt_table); ++i) { + const struct ffmpeg_fmt_table_t *t = &ffmpeg_fmt_table[i]; + if (t->pf == pf) { + if (fmt_id) *fmt_id = t->id; + return PJ_SUCCESS; + } + } + + return PJ_ENOTFOUND; +} + +pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id, + enum CodecID *codec_id) +{ + unsigned i; + for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_codec_table); ++i) { + const struct ffmpeg_codec_table_t *t = &ffmpeg_codec_table[i]; + if (t->id==fmt_id && t->codec_id != PIX_FMT_NONE) { + *codec_id = t->codec_id; + return PJ_SUCCESS; + } + } + + *codec_id = PIX_FMT_NONE; + return PJ_ENOTFOUND; +} + +pj_status_t CodecID_to_pjmedia_format_id(enum CodecID codec_id, + pjmedia_format_id *fmt_id) +{ + unsigned i; + for (i=0; i<PJ_ARRAY_SIZE(ffmpeg_codec_table); ++i) { + const struct ffmpeg_codec_table_t *t = &ffmpeg_codec_table[i]; + if (t->codec_id == codec_id) { + if (fmt_id) *fmt_id = t->id; + return PJ_SUCCESS; + } + } + + return PJ_ENOTFOUND; +} + + +#ifdef _MSC_VER +# pragma comment( lib, "avformat.lib") +# pragma comment( lib, "avutil.lib") +#endif + +#endif /* #if PJMEDIA_HAS_LIBAVFORMAT && PJMEDIA_HAS_LIBAVUTIL */ |