diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 01ffe07afe..43a6add317 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -950,6 +950,7 @@ OBJS-$(CONFIG_VC1_PARSER) += vc1_parser.o vc1.o vc1data.o \ OBJS-$(CONFIG_VP3_PARSER) += vp3_parser.o OBJS-$(CONFIG_VP8_PARSER) += vp8_parser.o OBJS-$(CONFIG_VP9_PARSER) += vp9_parser.o +OBJS-$(CONFIG_XMA_PARSER) += xma_parser.o # bitstream filters OBJS-$(CONFIG_AAC_ADTSTOASC_BSF) += aac_adtstoasc_bsf.o aacadtsdec.o \ diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 703c552f5f..f92b2b7496 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -709,4 +709,5 @@ void avcodec_register_all(void) REGISTER_PARSER(VP3, vp3); REGISTER_PARSER(VP8, vp8); REGISTER_PARSER(VP9, vp9); + REGISTER_PARSER(XMA, xma); } diff --git a/libavcodec/version.h b/libavcodec/version.h index 45e4488db8..c038e4b093 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -28,7 +28,7 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 57 -#define LIBAVCODEC_VERSION_MINOR 74 +#define LIBAVCODEC_VERSION_MINOR 75 #define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ diff --git a/libavcodec/xma_parser.c b/libavcodec/xma_parser.c new file mode 100644 index 0000000000..0513679272 --- /dev/null +++ b/libavcodec/xma_parser.c @@ -0,0 +1,62 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg 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, + * 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 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * XMA2 audio parser + */ + +#include "parser.h" + +typedef struct XMAParserContext{ + int skip_packets; +} XMAParserContext; + +static int xma_parse(AVCodecParserContext *s1, AVCodecContext *avctx, + const uint8_t **poutbuf, int *poutbuf_size, + const uint8_t *buf, int buf_size) +{ + XMAParserContext *s = s1->priv_data; + + if (buf_size % 2048 == 0) { + int duration = 0, packet, nb_packets = buf_size / 2048; + + for (packet = 0; packet < nb_packets; packet++) { + if (s->skip_packets == 0) { + duration += buf[packet * 2048] * 128; + s->skip_packets = buf[packet * 2048 + 3] + 1; + } + s->skip_packets--; + } + + s1->duration = duration; + s1->key_frame = !!duration; + } + + /* always return the full packet. this parser isn't doing any splitting or + combining, only packet analysis */ + *poutbuf = buf; + *poutbuf_size = buf_size; + return buf_size; +} + +AVCodecParser ff_xma_parser = { + .codec_ids = { AV_CODEC_ID_XMA2 }, + .priv_data_size = sizeof(XMAParserContext), + .parser_parse = xma_parse, +};