OBJS-$(CONFIG_MMF_MUXER) += mmf.o riff.o
OBJS-$(CONFIG_MOV_DEMUXER) += mov.o riff.o isom.o
OBJS-$(CONFIG_MOV_MUXER) += movenc.o riff.o isom.o avc.o movenchint.o
-OBJS-$(CONFIG_MP2_MUXER) += mp3.o
-OBJS-$(CONFIG_MP3_DEMUXER) += mp3.o
-OBJS-$(CONFIG_MP3_MUXER) += mp3.o
+OBJS-$(CONFIG_MP2_MUXER) += mp3enc.o
+OBJS-$(CONFIG_MP3_DEMUXER) += mp3dec.o
+OBJS-$(CONFIG_MP3_MUXER) += mp3enc.o
OBJS-$(CONFIG_MPC_DEMUXER) += mpc.o apetag.o
OBJS-$(CONFIG_MPC8_DEMUXER) += mpc8.o
OBJS-$(CONFIG_MPEG1SYSTEM_MUXER) += mpegenc.o
/*
- * MP3 muxer and demuxer
+ * MP3 demuxer
* Copyright (c) 2003 Fabrice Bellard
*
* This file is part of FFmpeg.
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <strings.h>
#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "avformat.h"
#include "id3v2.h"
#include "id3v1.h"
-
-#if CONFIG_MP3_DEMUXER
-
-#include "libavcodec/mpegaudio.h"
#include "libavcodec/mpegaudiodecheader.h"
/* mp3 read */
.flags= AVFMT_GENERIC_INDEX,
.extensions = "mp2,mp3,m2a", /* XXX: use probe */
};
-#endif
-
-#if CONFIG_MP2_MUXER || CONFIG_MP3_MUXER
-static int id3v1_set_string(AVFormatContext *s, const char *key,
- uint8_t *buf, int buf_size)
-{
- AVMetadataTag *tag;
- if ((tag = av_metadata_get(s->metadata, key, NULL, 0)))
- strncpy(buf, tag->value, buf_size);
- return !!tag;
-}
-
-static int id3v1_create_tag(AVFormatContext *s, uint8_t *buf)
-{
- AVMetadataTag *tag;
- int i, count = 0;
-
- memset(buf, 0, ID3v1_TAG_SIZE); /* fail safe */
- buf[0] = 'T';
- buf[1] = 'A';
- buf[2] = 'G';
- count += id3v1_set_string(s, "TIT2", buf + 3, 30); //title
- count += id3v1_set_string(s, "TPE1", buf + 33, 30); //author|artist
- count += id3v1_set_string(s, "TALB", buf + 63, 30); //album
- count += id3v1_set_string(s, "TDRL", buf + 93, 4); //date
- count += id3v1_set_string(s, "comment", buf + 97, 30);
- if ((tag = av_metadata_get(s->metadata, "TRCK", NULL, 0))) { //track
- buf[125] = 0;
- buf[126] = atoi(tag->value);
- count++;
- }
- buf[127] = 0xFF; /* default to unknown genre */
- if ((tag = av_metadata_get(s->metadata, "TCON", NULL, 0))) { //genre
- for(i = 0; i <= ID3v1_GENRE_MAX; i++) {
- if (!strcasecmp(tag->value, ff_id3v1_genre_str[i])) {
- buf[127] = i;
- count++;
- break;
- }
- }
- }
- return count;
-}
-
-/* simple formats */
-
-static void id3v2_put_size(AVFormatContext *s, int size)
-{
- put_byte(s->pb, size >> 21 & 0x7f);
- put_byte(s->pb, size >> 14 & 0x7f);
- put_byte(s->pb, size >> 7 & 0x7f);
- put_byte(s->pb, size & 0x7f);
-}
-
-static void id3v2_put_ttag(AVFormatContext *s, const char *buf, int len,
- uint32_t tag)
-{
- put_be32(s->pb, tag);
- id3v2_put_size(s, len + 1);
- put_be16(s->pb, 0);
- put_byte(s->pb, 3); /* UTF-8 */
- put_buffer(s->pb, buf, len);
-}
-
-
-static int mp3_write_packet(struct AVFormatContext *s, AVPacket *pkt)
-{
- put_buffer(s->pb, pkt->data, pkt->size);
- put_flush_packet(s->pb);
- return 0;
-}
-
-static int mp3_write_trailer(struct AVFormatContext *s)
-{
- uint8_t buf[ID3v1_TAG_SIZE];
-
- /* write the id3v1 tag */
- if (id3v1_create_tag(s, buf) > 0) {
- put_buffer(s->pb, buf, ID3v1_TAG_SIZE);
- put_flush_packet(s->pb);
- }
- return 0;
-}
-#endif /* CONFIG_MP2_MUXER || CONFIG_MP3_MUXER */
-
-#if CONFIG_MP2_MUXER
-AVOutputFormat mp2_muxer = {
- "mp2",
- NULL_IF_CONFIG_SMALL("MPEG audio layer 2"),
- "audio/x-mpeg",
- "mp2,m2a",
- 0,
- CODEC_ID_MP2,
- CODEC_ID_NONE,
- NULL,
- mp3_write_packet,
- mp3_write_trailer,
-};
-#endif
-
-#if CONFIG_MP3_MUXER
-/**
- * Write an ID3v2.4 header at beginning of stream
- */
-
-static int mp3_write_header(struct AVFormatContext *s)
-{
- AVMetadataTag *t = NULL;
- int totlen = 0;
- int64_t size_pos, cur_pos;
-
- put_be32(s->pb, MKBETAG('I', 'D', '3', 0x04)); /* ID3v2.4 */
- put_byte(s->pb, 0);
- put_byte(s->pb, 0); /* flags */
-
- /* reserve space for size */
- size_pos = url_ftell(s->pb);
- put_be32(s->pb, 0);
-
- ff_metadata_conv(&s->metadata, ff_id3v2_metadata_conv, NULL);
- while ((t = av_metadata_get(s->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
- uint32_t tag = 0;
-
- if (t->key[0] == 'T' && strlen(t->key) == 4) {
- int i;
- for (i = 0; *ff_id3v2_tags[i]; i++)
- if (AV_RB32(t->key) == AV_RB32(ff_id3v2_tags[i])) {
- int len = strlen(t->value);
- tag = AV_RB32(t->key);
- totlen += len + ID3v2_HEADER_SIZE + 2;
- id3v2_put_ttag(s, t->value, len + 1, tag);
- break;
- }
- }
-
- if (!tag) { /* unknown tag, write as TXXX frame */
- int len = strlen(t->key), len1 = strlen(t->value);
- char *buf = av_malloc(len + len1 + 2);
- if (!buf)
- return AVERROR(ENOMEM);
- tag = MKBETAG('T', 'X', 'X', 'X');
- strcpy(buf, t->key);
- strcpy(buf + len + 1, t->value);
- id3v2_put_ttag(s, buf, len + len1 + 2, tag);
- totlen += len + len1 + ID3v2_HEADER_SIZE + 3;
- av_free(buf);
- }
- }
-
- cur_pos = url_ftell(s->pb);
- url_fseek(s->pb, size_pos, SEEK_SET);
- id3v2_put_size(s, totlen);
- url_fseek(s->pb, cur_pos, SEEK_SET);
-
- return 0;
-}
-
-AVOutputFormat mp3_muxer = {
- "mp3",
- NULL_IF_CONFIG_SMALL("MPEG audio layer 3"),
- "audio/x-mpeg",
- "mp3",
- 0,
- CODEC_ID_MP3,
- CODEC_ID_NONE,
- mp3_write_header,
- mp3_write_packet,
- mp3_write_trailer,
- AVFMT_NOTIMESTAMPS,
-};
-#endif
--- /dev/null
+/*
+ * MP3 muxer
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * 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
+ */
+
+#include <strings.h>
+#include "avformat.h"
+#include "id3v1.h"
+#include "id3v2.h"
+#include "libavutil/intreadwrite.h"
+
+static int id3v1_set_string(AVFormatContext *s, const char *key,
+ uint8_t *buf, int buf_size)
+{
+ AVMetadataTag *tag;
+ if ((tag = av_metadata_get(s->metadata, key, NULL, 0)))
+ strncpy(buf, tag->value, buf_size);
+ return !!tag;
+}
+
+static int id3v1_create_tag(AVFormatContext *s, uint8_t *buf)
+{
+ AVMetadataTag *tag;
+ int i, count = 0;
+
+ memset(buf, 0, ID3v1_TAG_SIZE); /* fail safe */
+ buf[0] = 'T';
+ buf[1] = 'A';
+ buf[2] = 'G';
+ count += id3v1_set_string(s, "TIT2", buf + 3, 30); //title
+ count += id3v1_set_string(s, "TPE1", buf + 33, 30); //author|artist
+ count += id3v1_set_string(s, "TALB", buf + 63, 30); //album
+ count += id3v1_set_string(s, "TDRL", buf + 93, 4); //date
+ count += id3v1_set_string(s, "comment", buf + 97, 30);
+ if ((tag = av_metadata_get(s->metadata, "TRCK", NULL, 0))) { //track
+ buf[125] = 0;
+ buf[126] = atoi(tag->value);
+ count++;
+ }
+ buf[127] = 0xFF; /* default to unknown genre */
+ if ((tag = av_metadata_get(s->metadata, "TCON", NULL, 0))) { //genre
+ for(i = 0; i <= ID3v1_GENRE_MAX; i++) {
+ if (!strcasecmp(tag->value, ff_id3v1_genre_str[i])) {
+ buf[127] = i;
+ count++;
+ break;
+ }
+ }
+ }
+ return count;
+}
+
+/* simple formats */
+
+static void id3v2_put_size(AVFormatContext *s, int size)
+{
+ put_byte(s->pb, size >> 21 & 0x7f);
+ put_byte(s->pb, size >> 14 & 0x7f);
+ put_byte(s->pb, size >> 7 & 0x7f);
+ put_byte(s->pb, size & 0x7f);
+}
+
+static void id3v2_put_ttag(AVFormatContext *s, const char *buf, int len,
+ uint32_t tag)
+{
+ put_be32(s->pb, tag);
+ id3v2_put_size(s, len + 1);
+ put_be16(s->pb, 0);
+ put_byte(s->pb, 3); /* UTF-8 */
+ put_buffer(s->pb, buf, len);
+}
+
+
+static int mp3_write_packet(struct AVFormatContext *s, AVPacket *pkt)
+{
+ put_buffer(s->pb, pkt->data, pkt->size);
+ put_flush_packet(s->pb);
+ return 0;
+}
+
+static int mp3_write_trailer(struct AVFormatContext *s)
+{
+ uint8_t buf[ID3v1_TAG_SIZE];
+
+ /* write the id3v1 tag */
+ if (id3v1_create_tag(s, buf) > 0) {
+ put_buffer(s->pb, buf, ID3v1_TAG_SIZE);
+ put_flush_packet(s->pb);
+ }
+ return 0;
+}
+
+#if CONFIG_MP2_MUXER
+AVOutputFormat mp2_muxer = {
+ "mp2",
+ NULL_IF_CONFIG_SMALL("MPEG audio layer 2"),
+ "audio/x-mpeg",
+ "mp2,m2a",
+ 0,
+ CODEC_ID_MP2,
+ CODEC_ID_NONE,
+ NULL,
+ mp3_write_packet,
+ mp3_write_trailer,
+};
+#endif
+
+#if CONFIG_MP3_MUXER
+/**
+ * Write an ID3v2.4 header at beginning of stream
+ */
+
+static int mp3_write_header(struct AVFormatContext *s)
+{
+ AVMetadataTag *t = NULL;
+ int totlen = 0;
+ int64_t size_pos, cur_pos;
+
+ put_be32(s->pb, MKBETAG('I', 'D', '3', 0x04)); /* ID3v2.4 */
+ put_byte(s->pb, 0);
+ put_byte(s->pb, 0); /* flags */
+
+ /* reserve space for size */
+ size_pos = url_ftell(s->pb);
+ put_be32(s->pb, 0);
+
+ ff_metadata_conv(&s->metadata, ff_id3v2_metadata_conv, NULL);
+ while ((t = av_metadata_get(s->metadata, "", t, AV_METADATA_IGNORE_SUFFIX))) {
+ uint32_t tag = 0;
+
+ if (t->key[0] == 'T' && strlen(t->key) == 4) {
+ int i;
+ for (i = 0; *ff_id3v2_tags[i]; i++)
+ if (AV_RB32(t->key) == AV_RB32(ff_id3v2_tags[i])) {
+ int len = strlen(t->value);
+ tag = AV_RB32(t->key);
+ totlen += len + ID3v2_HEADER_SIZE + 2;
+ id3v2_put_ttag(s, t->value, len + 1, tag);
+ break;
+ }
+ }
+
+ if (!tag) { /* unknown tag, write as TXXX frame */
+ int len = strlen(t->key), len1 = strlen(t->value);
+ char *buf = av_malloc(len + len1 + 2);
+ if (!buf)
+ return AVERROR(ENOMEM);
+ tag = MKBETAG('T', 'X', 'X', 'X');
+ strcpy(buf, t->key);
+ strcpy(buf + len + 1, t->value);
+ id3v2_put_ttag(s, buf, len + len1 + 2, tag);
+ totlen += len + len1 + ID3v2_HEADER_SIZE + 3;
+ av_free(buf);
+ }
+ }
+
+ cur_pos = url_ftell(s->pb);
+ url_fseek(s->pb, size_pos, SEEK_SET);
+ id3v2_put_size(s, totlen);
+ url_fseek(s->pb, cur_pos, SEEK_SET);
+
+ return 0;
+}
+
+AVOutputFormat mp3_muxer = {
+ "mp3",
+ NULL_IF_CONFIG_SMALL("MPEG audio layer 3"),
+ "audio/x-mpeg",
+ "mp3",
+ 0,
+ CODEC_ID_MP3,
+ CODEC_ID_NONE,
+ mp3_write_header,
+ mp3_write_packet,
+ mp3_write_trailer,
+ AVFMT_NOTIMESTAMPS,
+};
+#endif
projects / ffmpeg / commitdiff