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ffmpeg / libavformat / riff.c @ 13b47b40

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/*
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 * RIFF codec tags
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 * Copyright (c) 2000 Fabrice Bellard
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 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include "libavcodec/avcodec.h"
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#include "avformat.h"
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#include "riff.h"
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/* Note: when encoding, the first matching tag is used, so order is
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   important if multiple tags possible for a given codec. */
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const AVCodecTag codec_bmp_tags[] = {
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    { CODEC_ID_H264,         MKTAG('H', '2', '6', '4') },
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    { CODEC_ID_H264,         MKTAG('h', '2', '6', '4') },
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    { CODEC_ID_H264,         MKTAG('X', '2', '6', '4') },
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    { CODEC_ID_H264,         MKTAG('x', '2', '6', '4') },
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    { CODEC_ID_H264,         MKTAG('a', 'v', 'c', '1') },
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    { CODEC_ID_H264,         MKTAG('V', 'S', 'S', 'H') },
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    { CODEC_ID_H263,         MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263,         MKTAG('X', '2', '6', '3') },
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    { CODEC_ID_H263,         MKTAG('T', '2', '6', '3') },
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    { CODEC_ID_H263,         MKTAG('L', '2', '6', '3') },
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    { CODEC_ID_H263,         MKTAG('V', 'X', '1', 'K') },
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    { CODEC_ID_H263P,        MKTAG('H', '2', '6', '3') },
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    { CODEC_ID_H263I,        MKTAG('I', '2', '6', '3') }, /* intel h263 */
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    { CODEC_ID_H261,         MKTAG('H', '2', '6', '1') },
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    { CODEC_ID_H263P,        MKTAG('U', '2', '6', '3') },
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    { CODEC_ID_H263P,        MKTAG('v', 'i', 'v', '1') },
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    { CODEC_ID_MPEG4,        MKTAG('F', 'M', 'P', '4') },
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    { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', 'X') },
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    { CODEC_ID_MPEG4,        MKTAG('D', 'X', '5', '0') },
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    { CODEC_ID_MPEG4,        MKTAG('X', 'V', 'I', 'D') },
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    { CODEC_ID_MPEG4,        MKTAG('M', 'P', '4', 'S') },
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    { CODEC_ID_MPEG4,        MKTAG('M', '4', 'S', '2') },
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    { CODEC_ID_MPEG4,        MKTAG( 4 ,  0 ,  0 ,  0 ) }, /* some broken avi use this */
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    { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'V', '1') },
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    { CODEC_ID_MPEG4,        MKTAG('B', 'L', 'Z', '0') },
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    { CODEC_ID_MPEG4,        MKTAG('m', 'p', '4', 'v') },
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    { CODEC_ID_MPEG4,        MKTAG('U', 'M', 'P', '4') },
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    { CODEC_ID_MPEG4,        MKTAG('W', 'V', '1', 'F') },
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    { CODEC_ID_MPEG4,        MKTAG('S', 'E', 'D', 'G') },
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    { CODEC_ID_MPEG4,        MKTAG('R', 'M', 'P', '4') },
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    { CODEC_ID_MPEG4,        MKTAG('3', 'I', 'V', '2') },
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    { CODEC_ID_MPEG4,        MKTAG('F', 'F', 'D', 'S') },
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    { CODEC_ID_MPEG4,        MKTAG('F', 'V', 'F', 'W') },
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    { CODEC_ID_MPEG4,        MKTAG('D', 'C', 'O', 'D') },
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    { CODEC_ID_MPEG4,        MKTAG('M', 'V', 'X', 'M') },
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    { CODEC_ID_MPEG4,        MKTAG('P', 'M', '4', 'V') },
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    { CODEC_ID_MPEG4,        MKTAG('S', 'M', 'P', '4') },
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    { CODEC_ID_MPEG4,        MKTAG('D', 'X', 'G', 'M') },
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    { CODEC_ID_MPEG4,        MKTAG('V', 'I', 'D', 'M') },
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    { CODEC_ID_MPEG4,        MKTAG('M', '4', 'T', '3') },
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    { CODEC_ID_MPEG4,        MKTAG('G', 'E', 'O', 'X') },
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    { CODEC_ID_MPEG4,        MKTAG('H', 'D', 'X', '4') }, /* flipped video */
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    { CODEC_ID_MPEG4,        MKTAG('D', 'M', 'K', '2') },
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    { CODEC_ID_MPEG4,        MKTAG('D', 'I', 'G', 'I') },
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    { CODEC_ID_MPEG4,        MKTAG('I', 'N', 'M', 'C') },
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    { CODEC_ID_MPEG4,        MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */
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    { CODEC_ID_MPEG4,        MKTAG('E', 'M', '4', 'A') },
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    { CODEC_ID_MPEG4,        MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */
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    { CODEC_ID_MPEG4,        MKTAG('S', 'N', '4', '0') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '3') }, /* default signature when using MSMPEG4 */
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    { CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', '4', '3') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', 'G', '3') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '5') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '6') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '4') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('D', 'V', 'X', '3') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('A', 'P', '4', '1') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '1') },
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    { CODEC_ID_MSMPEG4V3,    MKTAG('C', 'O', 'L', '0') },
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    { CODEC_ID_MSMPEG4V2,    MKTAG('M', 'P', '4', '2') },
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    { CODEC_ID_MSMPEG4V2,    MKTAG('D', 'I', 'V', '2') },
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    { CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', 'G', '4') },
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    { CODEC_ID_MSMPEG4V1,    MKTAG('M', 'P', '4', '1') },
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    { CODEC_ID_WMV1,         MKTAG('W', 'M', 'V', '1') },
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    { CODEC_ID_WMV2,         MKTAG('W', 'M', 'V', '2') },
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'd') },
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'h', 'd') },
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 's', 'l') },
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '2', '5') },
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', '5', '0') },
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    { CODEC_ID_DVVIDEO,      MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
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    { CODEC_ID_DVVIDEO,      MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */
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    { CODEC_ID_DVVIDEO,      MKTAG('d', 'v', 'c', ' ') },
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    { CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '1') },
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    { CODEC_ID_MPEG1VIDEO,   MKTAG('m', 'p', 'g', '2') },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('m', 'p', 'g', '2') },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'P', 'E', 'G') },
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    { CODEC_ID_MPEG1VIDEO,   MKTAG('P', 'I', 'M', '1') },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('P', 'I', 'M', '2') },
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    { CODEC_ID_MPEG1VIDEO,   MKTAG('V', 'C', 'R', '2') },
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    { CODEC_ID_MPEG1VIDEO,   MKTAG( 1 ,  0 ,  0 ,  16) },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG( 2 ,  0 ,  0 ,  16) },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('D', 'V', 'R', ' ') },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('M', 'M', 'E', 'S') },
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    { CODEC_ID_MPEG2VIDEO,   MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
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    { CODEC_ID_MJPEG,        MKTAG('M', 'J', 'P', 'G') },
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    { CODEC_ID_MJPEG,        MKTAG('L', 'J', 'P', 'G') },
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    { CODEC_ID_MJPEG,        MKTAG('d', 'm', 'b', '1') },
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    { CODEC_ID_LJPEG,        MKTAG('L', 'J', 'P', 'G') },
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    { CODEC_ID_MJPEG,        MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
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    { CODEC_ID_JPEGLS,       MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
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    { CODEC_ID_MJPEG,        MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
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    { CODEC_ID_MJPEG,        MKTAG('j', 'p', 'e', 'g') },
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    { CODEC_ID_MJPEG,        MKTAG('I', 'J', 'P', 'G') },
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    { CODEC_ID_MJPEG,        MKTAG('A', 'V', 'R', 'n') },
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    { CODEC_ID_MJPEG,        MKTAG('A', 'C', 'D', 'V') },
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    { CODEC_ID_MJPEG,        MKTAG('Q', 'I', 'V', 'G') },
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    { CODEC_ID_MJPEG,        MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
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    { CODEC_ID_MJPEG,        MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
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    { CODEC_ID_HUFFYUV,      MKTAG('H', 'F', 'Y', 'U') },
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    { CODEC_ID_FFVHUFF,      MKTAG('F', 'F', 'V', 'H') },
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    { CODEC_ID_CYUV,         MKTAG('C', 'Y', 'U', 'V') },
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    { CODEC_ID_RAWVIDEO,     MKTAG( 0 ,  0 ,  0 ,  0 ) },
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    { CODEC_ID_RAWVIDEO,     MKTAG('I', '4', '2', '0') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'U', 'Y', '2') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('Y', '4', '2', '2') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('Y', 'V', '1', '2') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('U', 'Y', 'V', 'Y') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('I', 'Y', 'U', 'V') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('Y', '8', '0', '0') },
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    { CODEC_ID_RAWVIDEO,     MKTAG('H', 'D', 'Y', 'C') },
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    { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '1') },
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    { CODEC_ID_INDEO3,       MKTAG('I', 'V', '3', '2') },
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    { CODEC_ID_INDEO4,       MKTAG('I', 'V', '4', '1') },
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    { CODEC_ID_INDEO5,       MKTAG('I', 'V', '5', '0') },
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    { CODEC_ID_VP3,          MKTAG('V', 'P', '3', '1') },
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    { CODEC_ID_VP3,          MKTAG('V', 'P', '3', '0') },
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    { CODEC_ID_VP5,          MKTAG('V', 'P', '5', '0') },
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    { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '0') },
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    { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '1') },
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    { CODEC_ID_VP6,          MKTAG('V', 'P', '6', '2') },
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    { CODEC_ID_ASV1,         MKTAG('A', 'S', 'V', '1') },
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    { CODEC_ID_ASV2,         MKTAG('A', 'S', 'V', '2') },
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    { CODEC_ID_VCR1,         MKTAG('V', 'C', 'R', '1') },
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    { CODEC_ID_FFV1,         MKTAG('F', 'F', 'V', '1') },
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    { CODEC_ID_XAN_WC4,      MKTAG('X', 'x', 'a', 'n') },
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    { CODEC_ID_MIMIC,        MKTAG('L', 'M', '2', '0') },
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    { CODEC_ID_MSRLE,        MKTAG('m', 'r', 'l', 'e') },
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    { CODEC_ID_MSRLE,        MKTAG( 1 ,  0 ,  0 ,  0 ) },
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    { CODEC_ID_MSRLE,        MKTAG( 2 ,  0 ,  0 ,  0 ) },
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    { CODEC_ID_MSVIDEO1,     MKTAG('M', 'S', 'V', 'C') },
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    { CODEC_ID_MSVIDEO1,     MKTAG('m', 's', 'v', 'c') },
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    { CODEC_ID_MSVIDEO1,     MKTAG('C', 'R', 'A', 'M') },
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    { CODEC_ID_MSVIDEO1,     MKTAG('c', 'r', 'a', 'm') },
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    { CODEC_ID_MSVIDEO1,     MKTAG('W', 'H', 'A', 'M') },
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    { CODEC_ID_MSVIDEO1,     MKTAG('w', 'h', 'a', 'm') },
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    { CODEC_ID_CINEPAK,      MKTAG('c', 'v', 'i', 'd') },
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    { CODEC_ID_TRUEMOTION1,  MKTAG('D', 'U', 'C', 'K') },
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    { CODEC_ID_TRUEMOTION1,  MKTAG('P', 'V', 'E', 'Z') },
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    { CODEC_ID_MSZH,         MKTAG('M', 'S', 'Z', 'H') },
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    { CODEC_ID_ZLIB,         MKTAG('Z', 'L', 'I', 'B') },
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    { CODEC_ID_SNOW,         MKTAG('S', 'N', 'O', 'W') },
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    { CODEC_ID_4XM,          MKTAG('4', 'X', 'M', 'V') },
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    { CODEC_ID_FLV1,         MKTAG('F', 'L', 'V', '1') },
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    { CODEC_ID_FLASHSV,      MKTAG('F', 'S', 'V', '1') },
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    { CODEC_ID_VP6F,         MKTAG('V', 'P', '6', 'F') },
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    { CODEC_ID_SVQ1,         MKTAG('s', 'v', 'q', '1') },
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    { CODEC_ID_TSCC,         MKTAG('t', 's', 'c', 'c') },
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    { CODEC_ID_ULTI,         MKTAG('U', 'L', 'T', 'I') },
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    { CODEC_ID_VIXL,         MKTAG('V', 'I', 'X', 'L') },
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    { CODEC_ID_QPEG,         MKTAG('Q', 'P', 'E', 'G') },
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    { CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '0') },
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    { CODEC_ID_QPEG,         MKTAG('Q', '1', '.', '1') },
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    { CODEC_ID_WMV3,         MKTAG('W', 'M', 'V', '3') },
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    { CODEC_ID_VC1,          MKTAG('W', 'V', 'C', '1') },
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    { CODEC_ID_VC1,          MKTAG('W', 'M', 'V', 'A') },
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    { CODEC_ID_LOCO,         MKTAG('L', 'O', 'C', 'O') },
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    { CODEC_ID_WNV1,         MKTAG('W', 'N', 'V', '1') },
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    { CODEC_ID_AASC,         MKTAG('A', 'A', 'S', 'C') },
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    { CODEC_ID_INDEO2,       MKTAG('R', 'T', '2', '1') },
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    { CODEC_ID_FRAPS,        MKTAG('F', 'P', 'S', '1') },
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    { CODEC_ID_THEORA,       MKTAG('t', 'h', 'e', 'o') },
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    { CODEC_ID_TRUEMOTION2,  MKTAG('T', 'M', '2', '0') },
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    { CODEC_ID_CSCD,         MKTAG('C', 'S', 'C', 'D') },
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    { CODEC_ID_ZMBV,         MKTAG('Z', 'M', 'B', 'V') },
194
    { CODEC_ID_KMVC,         MKTAG('K', 'M', 'V', 'C') },
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    { CODEC_ID_CAVS,         MKTAG('C', 'A', 'V', 'S') },
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    { CODEC_ID_JPEG2000,     MKTAG('M', 'J', '2', 'C') },
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    { CODEC_ID_VMNC,         MKTAG('V', 'M', 'n', 'c') },
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    { CODEC_ID_TARGA,        MKTAG('t', 'g', 'a', ' ') },
199
    { CODEC_ID_PNG,          MKTAG('M', 'P', 'N', 'G') },
200
    { CODEC_ID_CLJR,         MKTAG('c', 'l', 'j', 'r') },
201
    { CODEC_ID_DIRAC,        MKTAG('d', 'r', 'a', 'c') },
202
    { CODEC_ID_RPZA,         MKTAG('a', 'z', 'p', 'r') },
203
    { CODEC_ID_RPZA,         MKTAG('R', 'P', 'Z', 'A') },
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    { CODEC_ID_RPZA,         MKTAG('r', 'p', 'z', 'a') },
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    { CODEC_ID_SP5X,         MKTAG('S', 'P', '5', '4') },
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    { CODEC_ID_AURA,         MKTAG('A', 'U', 'R', 'A') },
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    { CODEC_ID_AURA2,        MKTAG('A', 'U', 'R', '2') },
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    { CODEC_ID_NONE,         0 }
209
};
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const AVCodecTag codec_wav_tags[] = {
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    { CODEC_ID_PCM_S16LE,       0x0001 },
213
    { CODEC_ID_PCM_U8,          0x0001 }, /* must come after s16le in this list */
214
    { CODEC_ID_PCM_S24LE,       0x0001 },
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    { CODEC_ID_PCM_S32LE,       0x0001 },
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    { CODEC_ID_ADPCM_MS,        0x0002 },
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    { CODEC_ID_PCM_F32LE,       0x0003 },
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    { CODEC_ID_PCM_F64LE,       0x0003 }, /* must come after f32le in this list */
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    { CODEC_ID_PCM_ALAW,        0x0006 },
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    { CODEC_ID_PCM_MULAW,       0x0007 },
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    { CODEC_ID_WMAVOICE,        0x000A },
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    { CODEC_ID_ADPCM_IMA_WAV,   0x0011 },
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    { CODEC_ID_PCM_ZORK,        0x0011 }, /* must come after adpcm_ima_wav in this list */
224
    { CODEC_ID_ADPCM_YAMAHA,    0x0020 },
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    { CODEC_ID_TRUESPEECH,      0x0022 },
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    { CODEC_ID_GSM_MS,          0x0031 },
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    { CODEC_ID_ADPCM_G726,      0x0045 },
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    { CODEC_ID_MP2,             0x0050 },
229
    { CODEC_ID_MP3,             0x0055 },
230
    { CODEC_ID_AMR_NB,          0x0057 },
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    { CODEC_ID_AMR_WB,          0x0058 },
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    { CODEC_ID_ADPCM_IMA_DK4,   0x0061 },  /* rogue format number */
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    { CODEC_ID_ADPCM_IMA_DK3,   0x0062 },  /* rogue format number */
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    { CODEC_ID_ADPCM_IMA_WAV,   0x0069 },
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    { CODEC_ID_VOXWARE,         0x0075 },
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    { CODEC_ID_AAC,             0x00ff },
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    { CODEC_ID_SIPR,            0x0130 },
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    { CODEC_ID_WMAV1,           0x0160 },
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    { CODEC_ID_WMAV2,           0x0161 },
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    { CODEC_ID_WMAPRO,          0x0162 },
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    { CODEC_ID_WMALOSSLESS,     0x0163 },
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    { CODEC_ID_ADPCM_CT,        0x0200 },
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    { CODEC_ID_ATRAC3,          0x0270 },
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    { CODEC_ID_IMC,             0x0401 },
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    { CODEC_ID_AC3,             0x2000 },
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    { CODEC_ID_DTS,             0x2001 },
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    { CODEC_ID_SONIC,           0x2048 },
248
    { CODEC_ID_SONIC_LS,        0x2048 },
249
    { CODEC_ID_AAC,             0x706d },
250
    { CODEC_ID_AAC,             0x4143 },
251
    { CODEC_ID_FLAC,            0xF1AC },
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    { CODEC_ID_ADPCM_SWF,       ('S'<<8)+'F' },
253
    { CODEC_ID_VORBIS,          ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
254

    
255
    /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
256
    // for NuppelVideo (nuv.c)
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    { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
258
    { CODEC_ID_MP3,       MKTAG('L', 'A', 'M', 'E') },
259
    { CODEC_ID_MP3,       MKTAG('M', 'P', '3', ' ') },
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    { 0, 0 },
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};
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263
#if CONFIG_MUXERS
264
int64_t start_tag(ByteIOContext *pb, const char *tag)
265
{
266
    put_tag(pb, tag);
267
    put_le32(pb, 0);
268
    return url_ftell(pb);
269
}
270

    
271
void end_tag(ByteIOContext *pb, int64_t start)
272
{
273
    int64_t pos;
274

    
275
    pos = url_ftell(pb);
276
    url_fseek(pb, start - 4, SEEK_SET);
277
    put_le32(pb, (uint32_t)(pos - start));
278
    url_fseek(pb, pos, SEEK_SET);
279
}
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281
/* WAVEFORMATEX header */
282
/* returns the size or -1 on error */
283
int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
284
{
285
    int bps, blkalign, bytespersec;
286
    int hdrsize = 18;
287

    
288
    if(!enc->codec_tag || enc->codec_tag > 0xffff)
289
        return -1;
290

    
291
    put_le16(pb, enc->codec_tag);
292
    put_le16(pb, enc->channels);
293
    put_le32(pb, enc->sample_rate);
294
    if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
295
        bps = 0;
296
    } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS || enc->codec_id == CODEC_ID_ADPCM_G726 || enc->codec_id == CODEC_ID_ADPCM_YAMAHA) { //
297
        bps = 4;
298
    } else {
299
        if (!(bps = av_get_bits_per_sample(enc->codec_id)))
300
            bps = 16; // default to 16
301
    }
302
    if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
303
        av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
304
    }
305

    
306
    if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_AC3) {
307
        blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly
308
        //blkalign = 144 * enc->bit_rate/enc->sample_rate;
309
    } else if (enc->codec_id == CODEC_ID_ADPCM_G726) { //
310
        blkalign = 1;
311
    } else if (enc->block_align != 0) { /* specified by the codec */
312
        blkalign = enc->block_align;
313
    } else
314
        blkalign = enc->channels*bps >> 3;
315
    if (enc->codec_id == CODEC_ID_PCM_U8 ||
316
        enc->codec_id == CODEC_ID_PCM_S24LE ||
317
        enc->codec_id == CODEC_ID_PCM_S32LE ||
318
        enc->codec_id == CODEC_ID_PCM_F32LE ||
319
        enc->codec_id == CODEC_ID_PCM_F64LE ||
320
        enc->codec_id == CODEC_ID_PCM_S16LE) {
321
        bytespersec = enc->sample_rate * blkalign;
322
    } else {
323
        bytespersec = enc->bit_rate / 8;
324
    }
325
    put_le32(pb, bytespersec); /* bytes per second */
326
    put_le16(pb, blkalign); /* block align */
327
    put_le16(pb, bps); /* bits per sample */
328
    if (enc->codec_id == CODEC_ID_MP3) {
329
        put_le16(pb, 12); /* wav_extra_size */
330
        hdrsize += 12;
331
        put_le16(pb, 1); /* wID */
332
        put_le32(pb, 2); /* fdwFlags */
333
        put_le16(pb, 1152); /* nBlockSize */
334
        put_le16(pb, 1); /* nFramesPerBlock */
335
        put_le16(pb, 1393); /* nCodecDelay */
336
    } else if (enc->codec_id == CODEC_ID_MP2) {
337
        put_le16(pb, 22); /* wav_extra_size */
338
        hdrsize += 22;
339
        put_le16(pb, 2);  /* fwHeadLayer */
340
        put_le32(pb, enc->bit_rate); /* dwHeadBitrate */
341
        put_le16(pb, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
342
        put_le16(pb, 0);  /* fwHeadModeExt */
343
        put_le16(pb, 1);  /* wHeadEmphasis */
344
        put_le16(pb, 16); /* fwHeadFlags */
345
        put_le32(pb, 0);  /* dwPTSLow */
346
        put_le32(pb, 0);  /* dwPTSHigh */
347
    } else if (enc->codec_id == CODEC_ID_GSM_MS) {
348
        put_le16(pb, 2); /* wav_extra_size */
349
        hdrsize += 2;
350
        put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
351
    } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
352
        put_le16(pb, 2); /* wav_extra_size */
353
        hdrsize += 2;
354
        put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
355
    } else if(enc->extradata_size){
356
        put_le16(pb, enc->extradata_size);
357
        put_buffer(pb, enc->extradata, enc->extradata_size);
358
        hdrsize += enc->extradata_size;
359
        if(hdrsize&1){
360
            hdrsize++;
361
            put_byte(pb, 0);
362
        }
363
    } else {
364
        hdrsize -= 2;
365
    }
366

    
367
    return hdrsize;
368
}
369

    
370
/* BITMAPINFOHEADER header */
371
void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
372
{
373
    put_le32(pb, 40 + enc->extradata_size); /* size */
374
    put_le32(pb, enc->width);
375
    //We always store RGB TopDown
376
    put_le32(pb, enc->codec_tag ? enc->height : -enc->height);
377
    put_le16(pb, 1); /* planes */
378

    
379
    put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
380
    /* compression type */
381
    put_le32(pb, enc->codec_tag);
382
    put_le32(pb, enc->width * enc->height * 3);
383
    put_le32(pb, 0);
384
    put_le32(pb, 0);
385
    put_le32(pb, 0);
386
    put_le32(pb, 0);
387

    
388
    put_buffer(pb, enc->extradata, enc->extradata_size);
389

    
390
    if (enc->extradata_size & 1)
391
        put_byte(pb, 0);
392
}
393
#endif //CONFIG_MUXERS
394

    
395
#if CONFIG_DEMUXERS
396
/* We could be given one of the three possible structures here:
397
 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
398
 * is an expansion of the previous one with the fields added
399
 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
400
 * WAVEFORMATEX adds 'WORD  cbSize' and basically makes itself
401
 * an openended structure.
402
 */
403
void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
404
{
405
    int id;
406

    
407
    id = get_le16(pb);
408
    codec->codec_type = CODEC_TYPE_AUDIO;
409
    codec->codec_tag = id;
410
    codec->channels = get_le16(pb);
411
    codec->sample_rate = get_le32(pb);
412
    codec->bit_rate = get_le32(pb) * 8;
413
    codec->block_align = get_le16(pb);
414
    if (size == 14) {  /* We're dealing with plain vanilla WAVEFORMAT */
415
        codec->bits_per_coded_sample = 8;
416
    }else
417
        codec->bits_per_coded_sample = get_le16(pb);
418
    if (size >= 18) {  /* We're obviously dealing with WAVEFORMATEX */
419
        int cbSize = get_le16(pb); /* cbSize */
420
        size -= 18;
421
        cbSize = FFMIN(size, cbSize);
422
        if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
423
            codec->bits_per_coded_sample = get_le16(pb);
424
            codec->channel_layout = get_le32(pb); /* dwChannelMask */
425
            id = get_le32(pb); /* 4 first bytes of GUID */
426
            url_fskip(pb, 12); /* skip end of GUID */
427
            cbSize -= 22;
428
            size -= 22;
429
        }
430
        codec->extradata_size = cbSize;
431
        if (cbSize > 0) {
432
            codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
433
            get_buffer(pb, codec->extradata, codec->extradata_size);
434
            size -= cbSize;
435
        }
436

    
437
        /* It is possible for the chunk to contain garbage at the end */
438
        if (size > 0)
439
            url_fskip(pb, size);
440
    }
441
    codec->codec_id = wav_codec_get_id(id, codec->bits_per_coded_sample);
442
}
443

    
444

    
445
enum CodecID wav_codec_get_id(unsigned int tag, int bps)
446
{
447
    enum CodecID id;
448
    id = codec_get_id(codec_wav_tags, tag);
449
    if (id <= 0)
450
        return id;
451
    /* handle specific u8 codec */
452
    if (id == CODEC_ID_PCM_S16LE && bps == 8)
453
        id = CODEC_ID_PCM_U8;
454
    if (id == CODEC_ID_PCM_S16LE && bps == 24)
455
        id = CODEC_ID_PCM_S24LE;
456
    if (id == CODEC_ID_PCM_S16LE && bps == 32)
457
        id = CODEC_ID_PCM_S32LE;
458
    if (id == CODEC_ID_PCM_F32LE && bps == 64)
459
        id = CODEC_ID_PCM_F64LE;
460
    if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
461
        id = CODEC_ID_PCM_ZORK;
462
    return id;
463
}
464
#endif // CONFIG_DEMUXERS
465

    
466
void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
467
{
468
    int gcd;
469

    
470
    *au_ssize= stream->block_align;
471
    if(stream->frame_size && stream->sample_rate){
472
        *au_scale=stream->frame_size;
473
        *au_rate= stream->sample_rate;
474
    }else if(stream->codec_type == CODEC_TYPE_VIDEO){
475
        *au_scale= stream->time_base.num;
476
        *au_rate = stream->time_base.den;
477
    }else{
478
        *au_scale= stream->block_align ? stream->block_align*8 : 8;
479
        *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
480
    }
481
    gcd= av_gcd(*au_scale, *au_rate);
482
    *au_scale /= gcd;
483
    *au_rate /= gcd;
484
}