/* Electronic Arts Multimedia File Demuxer
* Copyright (c) 2004 The ffmpeg Project
+ * Copyright (c) 2006-2008 Peter Ross
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * Libav 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file electronicarts.c
+ * @file
* Electronic Arts Multimedia file demuxer (WVE/UV2/etc.)
* by Robin Kay (komadori at gekkou.co.uk)
*/
+#include <inttypes.h>
+
+#include "libavutil/intreadwrite.h"
#include "avformat.h"
+#include "internal.h"
#define SCHl_TAG MKTAG('S', 'C', 'H', 'l')
+#define SEAD_TAG MKTAG('S', 'E', 'A', 'D') /* Sxxx header */
+#define SNDC_TAG MKTAG('S', 'N', 'D', 'C') /* Sxxx data */
+#define SEND_TAG MKTAG('S', 'E', 'N', 'D') /* Sxxx end */
+#define SHEN_TAG MKTAG('S', 'H', 'E', 'N') /* SxEN header */
+#define SDEN_TAG MKTAG('S', 'D', 'E', 'N') /* SxEN data */
+#define SEEN_TAG MKTAG('S', 'E', 'E', 'N') /* SxEN end */
+#define ISNh_TAG MKTAG('1', 'S', 'N', 'h') /* 1SNx header */
+#define EACS_TAG MKTAG('E', 'A', 'C', 'S')
+#define ISNd_TAG MKTAG('1', 'S', 'N', 'd') /* 1SNx data */
+#define ISNe_TAG MKTAG('1', 'S', 'N', 'e') /* 1SNx end */
#define PT00_TAG MKTAG('P', 'T', 0x0, 0x0)
+#define GSTR_TAG MKTAG('G', 'S', 'T', 'R')
#define SCDl_TAG MKTAG('S', 'C', 'D', 'l')
-#define pIQT_TAG MKTAG('p', 'I', 'Q', 'T')
#define SCEl_TAG MKTAG('S', 'C', 'E', 'l')
-#define _TAG MKTAG('', '', '', '')
-
-#define EA_SAMPLE_RATE 22050
-#define EA_BITS_PER_SAMPLE 16
-#define EA_PREAMBLE_SIZE 8
+#define kVGT_TAG MKTAG('k', 'V', 'G', 'T') /* TGV I-frame */
+#define fVGT_TAG MKTAG('f', 'V', 'G', 'T') /* TGV P-frame */
+#define mTCD_TAG MKTAG('m', 'T', 'C', 'D') /* MDEC */
+#define MADk_TAG MKTAG('M', 'A', 'D', 'k') /* MAD I-frame */
+#define MADm_TAG MKTAG('M', 'A', 'D', 'm') /* MAD P-frame */
+#define MADe_TAG MKTAG('M', 'A', 'D', 'e') /* MAD lqp-frame */
+#define MPCh_TAG MKTAG('M', 'P', 'C', 'h') /* MPEG-2 */
+#define TGQs_TAG MKTAG('T', 'G', 'Q', 's') /* TGQ I-frame (appears in .TGQ files) */
+#define pQGT_TAG MKTAG('p', 'Q', 'G', 'T') /* TGQ I-frame (appears in .UV files) */
+#define pIQT_TAG MKTAG('p', 'I', 'Q', 'T') /* TQI/UV2 I-frame (.UV2/.WVE) */
+#define MVhd_TAG MKTAG('M', 'V', 'h', 'd')
+#define MV0K_TAG MKTAG('M', 'V', '0', 'K')
+#define MV0F_TAG MKTAG('M', 'V', '0', 'F')
+#define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
+#define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV I-frame */
typedef struct EaDemuxContext {
- int width;
- int height;
+ int big_endian;
+
+ enum AVCodecID video_codec;
+ AVRational time_base;
+ int width, height;
int video_stream_index;
- int track_count;
+ enum AVCodecID audio_codec;
int audio_stream_index;
- int audio_frame_counter;
-
- int64_t audio_pts;
- int64_t video_pts;
- int video_pts_inc;
- float fps;
+ int bytes;
+ int sample_rate;
int num_channels;
int num_samples;
- int compression_type;
} EaDemuxContext;
-static uint32_t read_arbitary(ByteIOContext *pb) {
+static uint32_t read_arbitrary(AVIOContext *pb)
+{
uint8_t size, byte;
int i;
uint32_t word;
- size = get_byte(pb);
+ size = avio_r8(pb);
word = 0;
for (i = 0; i < size; i++) {
- byte = get_byte(pb);
+ byte = avio_r8(pb);
word <<= 8;
- word |= byte;
+ word |= byte;
}
return word;
}
-/*
- * Process WVE file header
- * Returns 1 if the WVE file is valid and successfully opened, 0 otherwise
- */
-static int process_ea_header(AVFormatContext *s) {
- int inHeader;
- uint32_t blockid, size;
- EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
- ByteIOContext *pb = &s->pb;
-
- if (get_buffer(pb, (void*)&blockid, 4) != 4) {
- return 0;
- }
- if (le2me_32(blockid) != SCHl_TAG) {
- return 0;
- }
-
- if (get_buffer(pb, (void*)&size, 4) != 4) {
- return 0;
- }
- size = le2me_32(size);
+static int process_audio_header_elements(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+ int in_header = 1;
+ int compression_type = -1, revision = -1, revision2 = -1;
- if (get_buffer(pb, (void*)&blockid, 4) != 4) {
- return 0;
- }
- if (le2me_32(blockid) != PT00_TAG) {
- av_log (s, AV_LOG_ERROR, "PT header missing\n");
- return 0;
- }
+ ea->bytes = 2;
+ ea->sample_rate = -1;
+ ea->num_channels = 1;
- inHeader = 1;
- while (inHeader) {
- int inSubheader;
+ while (!pb->eof_reached && in_header) {
+ int in_subheader;
uint8_t byte;
- byte = get_byte(pb) & 0xFF;
+ byte = avio_r8(pb);
switch (byte) {
case 0xFD:
- av_log (s, AV_LOG_INFO, "entered audio subheader\n");
- inSubheader = 1;
- while (inSubheader) {
+ av_log(s, AV_LOG_DEBUG, "entered audio subheader\n");
+ in_subheader = 1;
+ while (!pb->eof_reached && in_subheader) {
uint8_t subbyte;
- subbyte = get_byte(pb) & 0xFF;
+ subbyte = avio_r8(pb);
switch (subbyte) {
+ case 0x80:
+ revision = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "revision (element 0x80) set to 0x%08x\n", revision);
+ break;
case 0x82:
- ea->num_channels = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "num_channels (element 0x82) set to 0x%08x\n", ea->num_channels);
+ ea->num_channels = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "num_channels (element 0x82) set to 0x%08x\n",
+ ea->num_channels);
break;
case 0x83:
- ea->compression_type = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "compression_type (element 0x83) set to 0x%08x\n", ea->compression_type);
+ compression_type = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "compression_type (element 0x83) set to 0x%08x\n",
+ compression_type);
+ break;
+ case 0x84:
+ ea->sample_rate = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "sample_rate (element 0x84) set to %i\n",
+ ea->sample_rate);
break;
case 0x85:
- ea->num_samples = read_arbitary(pb);
- av_log (s, AV_LOG_INFO, "num_samples (element 0x85) set to 0x%08x\n", ea->num_samples);
+ ea->num_samples = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "num_samples (element 0x85) set to 0x%08x\n",
+ ea->num_samples);
break;
case 0x8A:
- av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
- av_log (s, AV_LOG_INFO, "exited audio subheader\n");
- inSubheader = 0;
+ av_log(s, AV_LOG_DEBUG,
+ "element 0x%02x set to 0x%08"PRIx32"\n",
+ subbyte, read_arbitrary(pb));
+ av_log(s, AV_LOG_DEBUG, "exited audio subheader\n");
+ in_subheader = 0;
+ break;
+ case 0xA0:
+ revision2 = read_arbitrary(pb);
+ av_log(s, AV_LOG_DEBUG,
+ "revision2 (element 0xA0) set to 0x%08x\n",
+ revision2);
+ break;
+ case 0xFF:
+ av_log(s, AV_LOG_DEBUG,
+ "end of header block reached (within audio subheader)\n");
+ in_subheader = 0;
+ in_header = 0;
break;
default:
- av_log (s, AV_LOG_INFO, "element 0x%02x set to 0x%08x\n", subbyte, read_arbitary(pb));
+ av_log(s, AV_LOG_DEBUG,
+ "element 0x%02x set to 0x%08"PRIx32"\n",
+ subbyte, read_arbitrary(pb));
break;
}
}
break;
case 0xFF:
- av_log (s, AV_LOG_INFO, "end of header block reached\n");
- inHeader = 0;
+ av_log(s, AV_LOG_DEBUG, "end of header block reached\n");
+ in_header = 0;
break;
default:
- av_log (s, AV_LOG_INFO, "header element 0x%02x set to 0x%08x\n", byte, read_arbitary(pb));
+ av_log(s, AV_LOG_DEBUG,
+ "header element 0x%02x set to 0x%08"PRIx32"\n",
+ byte, read_arbitrary(pb));
break;
}
}
- if ((ea->num_channels != 2) || (ea->compression_type != 7)) {
- av_log (s, AV_LOG_ERROR, "unsupported stream type\n");
+ switch (compression_type) {
+ case 0:
+ ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
+ break;
+ case 7:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_EA;
+ break;
+ case -1:
+ switch (revision) {
+ case 1:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R1;
+ break;
+ case 2:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2;
+ break;
+ case 3:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R3;
+ break;
+ case -1:
+ break;
+ default:
+ av_log(s, AV_LOG_ERROR,
+ "unsupported stream type; revision=%i\n", revision);
+ return 0;
+ }
+ switch (revision2) {
+ case 8:
+ ea->audio_codec = AV_CODEC_ID_PCM_S16LE_PLANAR;
+ break;
+ case 10:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_EA_R2;
+ break;
+ case 16:
+ ea->audio_codec = AV_CODEC_ID_MP3;
+ break;
+ case -1:
+ break;
+ default:
+ ea->audio_codec = AV_CODEC_ID_NONE;
+ av_log(s, AV_LOG_ERROR,
+ "unsupported stream type; revision2=%i\n", revision2);
+ return 0;
+ }
+ break;
+ default:
+ av_log(s, AV_LOG_ERROR,
+ "unsupported stream type; compression_type=%i\n",
+ compression_type);
return 0;
}
- /* skip to the start of the data */
- url_fseek(pb, size, SEEK_SET);
+ if (ea->sample_rate == -1)
+ ea->sample_rate = revision == 3 ? 48000 : 22050;
return 1;
}
+static void process_audio_header_eacs(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+ int compression_type;
+
+ ea->sample_rate = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
+ ea->bytes = avio_r8(pb); /* 1=8-bit, 2=16-bit */
+ ea->num_channels = avio_r8(pb);
+ compression_type = avio_r8(pb);
+ avio_skip(pb, 13);
+
+ switch (compression_type) {
+ case 0:
+ switch (ea->bytes) {
+ case 1:
+ ea->audio_codec = AV_CODEC_ID_PCM_S8;
+ break;
+ case 2:
+ ea->audio_codec = AV_CODEC_ID_PCM_S16LE;
+ break;
+ }
+ break;
+ case 1:
+ ea->audio_codec = AV_CODEC_ID_PCM_MULAW;
+ ea->bytes = 1;
+ break;
+ case 2:
+ ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_EACS;
+ break;
+ default:
+ av_log(s, AV_LOG_ERROR,
+ "unsupported stream type; audio compression_type=%i\n",
+ compression_type);
+ }
+}
+
+static void process_audio_header_sead(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+
+ ea->sample_rate = avio_rl32(pb);
+ ea->bytes = avio_rl32(pb); /* 1=8-bit, 2=16-bit */
+ ea->num_channels = avio_rl32(pb);
+ ea->audio_codec = AV_CODEC_ID_ADPCM_IMA_EA_SEAD;
+}
+
+static void process_video_header_mdec(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+ avio_skip(pb, 4);
+ ea->width = avio_rl16(pb);
+ ea->height = avio_rl16(pb);
+ ea->time_base = (AVRational) { 1, 15 };
+ ea->video_codec = AV_CODEC_ID_MDEC;
+}
+
+static void process_video_header_vp6(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+
+ avio_skip(pb, 16);
+ ea->time_base.den = avio_rl32(pb);
+ ea->time_base.num = avio_rl32(pb);
+ ea->video_codec = AV_CODEC_ID_VP6;
+}
+
+static void process_video_header_cmv(AVFormatContext *s)
+{
+ EaDemuxContext *ea = s->priv_data;
+ int fps;
+
+ avio_skip(s->pb, 10);
+ fps = avio_rl16(s->pb);
+ if (fps)
+ ea->time_base = (AVRational) { 1, fps };
+ ea->video_codec = AV_CODEC_ID_CMV;
+}
+
+/* Process EA file header.
+ * Return 1 if the EA file is valid and successfully opened, 0 otherwise. */
+static int process_ea_header(AVFormatContext *s)
+{
+ uint32_t blockid, size = 0;
+ EaDemuxContext *ea = s->priv_data;
+ AVIOContext *pb = s->pb;
+ int i;
+
+ for (i = 0; i < 5 && (!ea->audio_codec || !ea->video_codec); i++) {
+ unsigned int startpos = avio_tell(pb);
+ int err = 0;
+
+ blockid = avio_rl32(pb);
+ size = avio_rl32(pb);
+ if (i == 0)
+ ea->big_endian = size > 0x000FFFFF;
+ if (ea->big_endian)
+ size = av_bswap32(size);
+
+ switch (blockid) {
+ case ISNh_TAG:
+ if (avio_rl32(pb) != EACS_TAG) {
+ av_log(s, AV_LOG_ERROR, "unknown 1SNh headerid\n");
+ return 0;
+ }
+ process_audio_header_eacs(s);
+ break;
+
+ case SCHl_TAG:
+ case SHEN_TAG:
+ blockid = avio_rl32(pb);
+ if (blockid == GSTR_TAG) {
+ avio_skip(pb, 4);
+ } else if ((blockid & 0xFFFF) != PT00_TAG) {
+ av_log(s, AV_LOG_ERROR, "unknown SCHl headerid\n");
+ return 0;
+ }
+ err = process_audio_header_elements(s);
+ break;
+
+ case SEAD_TAG:
+ process_audio_header_sead(s);
+ break;
+
+ case MVIh_TAG:
+ process_video_header_cmv(s);
+ break;
+
+ case kVGT_TAG:
+ ea->video_codec = AV_CODEC_ID_TGV;
+ ea->time_base = (AVRational) { 1, 15 };
+ break;
+
+ case mTCD_TAG:
+ process_video_header_mdec(s);
+ break;
+
+ case MPCh_TAG:
+ ea->video_codec = AV_CODEC_ID_MPEG2VIDEO;
+ break;
+
+ case pQGT_TAG:
+ case TGQs_TAG:
+ ea->video_codec = AV_CODEC_ID_TGQ;
+ ea->time_base = (AVRational) { 1, 15 };
+ break;
+
+ case pIQT_TAG:
+ ea->video_codec = AV_CODEC_ID_TQI;
+ ea->time_base = (AVRational) { 1, 15 };
+ break;
+
+ case MADk_TAG:
+ ea->video_codec = AV_CODEC_ID_MAD;
+ avio_skip(pb, 6);
+ ea->time_base = (AVRational) { avio_rl16(pb), 1000 };
+ break;
+
+ case MVhd_TAG:
+ process_video_header_vp6(s);
+ break;
+ }
+
+ if (err < 0) {
+ av_log(s, AV_LOG_ERROR, "error parsing header: %i\n", err);
+ return err;
+ }
+
+ avio_seek(pb, startpos + size, SEEK_SET);
+ }
+
+ avio_seek(pb, 0, SEEK_SET);
+
+ return 1;
+}
static int ea_probe(AVProbeData *p)
{
- if (p->buf_size < 4)
+ switch (AV_RL32(&p->buf[0])) {
+ case ISNh_TAG:
+ case SCHl_TAG:
+ case SEAD_TAG:
+ case SHEN_TAG:
+ case kVGT_TAG:
+ case MADk_TAG:
+ case MPCh_TAG:
+ case MVhd_TAG:
+ case MVIh_TAG:
+ break;
+ default:
return 0;
-
- if (LE_32(&p->buf[0]) != SCHl_TAG)
+ }
+ if (AV_RL32(&p->buf[4]) > 0xfffff && AV_RB32(&p->buf[4]) > 0xfffff)
return 0;
return AVPROBE_SCORE_MAX;
}
-static int ea_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int ea_read_header(AVFormatContext *s)
{
- EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
+ EaDemuxContext *ea = s->priv_data;
AVStream *st;
if (!process_ea_header(s))
- return AVERROR_IO;
-
-#if 0
- /* initialize the video decoder stream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 33, 1, 90000);
- ea->video_stream_index = st->index;
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = CODEC_ID_EA_MJPEG;
- st->codec->codec_tag = 0; /* no fourcc */
-#endif
-
- /* initialize the audio decoder stream */
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- av_set_pts_info(st, 33, 1, EA_SAMPLE_RATE);
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- st->codec->codec_id = CODEC_ID_ADPCM_EA;
- st->codec->codec_tag = 0; /* no tag */
- st->codec->channels = ea->num_channels;
- st->codec->sample_rate = EA_SAMPLE_RATE;
- st->codec->bits_per_sample = EA_BITS_PER_SAMPLE;
- st->codec->bit_rate = st->codec->channels * st->codec->sample_rate *
- st->codec->bits_per_sample / 4;
- st->codec->block_align = st->codec->channels * st->codec->bits_per_sample;
-
- ea->audio_stream_index = st->index;
- ea->audio_frame_counter = 0;
+ return AVERROR(EIO);
+
+ if (ea->video_codec) {
+ /* initialize the video decoder stream */
+ st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+ ea->video_stream_index = st->index;
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = ea->video_codec;
+ st->codec->codec_tag = 0; /* no fourcc */
+ st->codec->width = ea->width;
+ st->codec->height = ea->height;
+ avpriv_set_pts_info(st, 33, ea->time_base.num, ea->time_base.den);
+ st->avg_frame_rate = (AVRational) { ea->time_base.den,
+ ea->time_base.num };
+ }
+
+ if (ea->audio_codec) {
+ if (ea->num_channels <= 0 || ea->num_channels > 2) {
+ av_log(s, AV_LOG_WARNING,
+ "Unsupported number of channels: %d\n", ea->num_channels);
+ ea->audio_codec = 0;
+ return 1;
+ }
+ if (ea->sample_rate <= 0) {
+ av_log(s, AV_LOG_ERROR,
+ "Unsupported sample rate: %d\n", ea->sample_rate);
+ ea->audio_codec = 0;
+ return 1;
+ }
+ if (ea->bytes <= 0) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid number of bytes per sample: %d\n", ea->bytes);
+ ea->audio_codec = AV_CODEC_ID_NONE;
+ return 1;
+ }
+
+ /* initialize the audio decoder stream */
+ st = avformat_new_stream(s, NULL);
+ if (!st)
+ return AVERROR(ENOMEM);
+ avpriv_set_pts_info(st, 33, 1, ea->sample_rate);
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_id = ea->audio_codec;
+ st->codec->codec_tag = 0; /* no tag */
+ st->codec->channels = ea->num_channels;
+ st->codec->sample_rate = ea->sample_rate;
+ st->codec->bits_per_coded_sample = ea->bytes * 8;
+ st->codec->bit_rate = st->codec->channels *
+ st->codec->sample_rate *
+ st->codec->bits_per_coded_sample / 4;
+ st->codec->block_align = st->codec->channels *
+ st->codec->bits_per_coded_sample;
+ ea->audio_stream_index = st->index;
+ st->start_time = 0;
+ }
return 1;
}
-static int ea_read_packet(AVFormatContext *s,
- AVPacket *pkt)
+static int ea_read_packet(AVFormatContext *s, AVPacket *pkt)
{
EaDemuxContext *ea = s->priv_data;
- ByteIOContext *pb = &s->pb;
- int ret = 0;
- int packet_read = 0;
- unsigned char preamble[EA_PREAMBLE_SIZE];
+ AVIOContext *pb = s->pb;
unsigned int chunk_type, chunk_size;
+ int ret = 0, packet_read = 0, key = 0;
+ int av_uninit(num_samples);
while (!packet_read) {
-
- if (get_buffer(pb, preamble, EA_PREAMBLE_SIZE) != EA_PREAMBLE_SIZE)
- return AVERROR_IO;
- chunk_type = LE_32(&preamble[0]);
- chunk_size = LE_32(&preamble[4]) - EA_PREAMBLE_SIZE;
+ chunk_type = avio_rl32(pb);
+ chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb);
+ if (chunk_size < 8)
+ return AVERROR_INVALIDDATA;
+ chunk_size -= 8;
switch (chunk_type) {
/* audio data */
+ case ISNh_TAG:
+ /* header chunk also contains data; skip over the header portion */
+ if (chunk_size < 32)
+ return AVERROR_INVALIDDATA;
+ avio_skip(pb, 32);
+ chunk_size -= 32;
+ case ISNd_TAG:
case SCDl_TAG:
+ case SNDC_TAG:
+ case SDEN_TAG:
+ if (!ea->audio_codec) {
+ avio_skip(pb, chunk_size);
+ break;
+ } else if (ea->audio_codec == AV_CODEC_ID_PCM_S16LE_PLANAR ||
+ ea->audio_codec == AV_CODEC_ID_MP3) {
+ num_samples = avio_rl32(pb);
+ avio_skip(pb, 8);
+ chunk_size -= 12;
+ }
+ if (!chunk_size)
+ continue;
+
ret = av_get_packet(pb, pkt, chunk_size);
- if (ret != chunk_size)
- ret = AVERROR_IO;
- else {
- pkt->stream_index = ea->audio_stream_index;
- pkt->pts = 90000;
- pkt->pts *= ea->audio_frame_counter;
- pkt->pts /= EA_SAMPLE_RATE;
-
- /* 2 samples/byte, 1 or 2 samples per frame depending
- * on stereo; chunk also has 12-byte header */
- ea->audio_frame_counter += ((chunk_size - 12) * 2) /
- ea->num_channels;
+ if (ret < 0)
+ return ret;
+ pkt->stream_index = ea->audio_stream_index;
+
+ switch (ea->audio_codec) {
+ case AV_CODEC_ID_ADPCM_EA:
+ case AV_CODEC_ID_ADPCM_EA_R1:
+ case AV_CODEC_ID_ADPCM_EA_R2:
+ case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
+ case AV_CODEC_ID_ADPCM_EA_R3:
+ if (pkt->size < 4) {
+ av_log(s, AV_LOG_ERROR, "Packet is too short\n");
+ av_free_packet(pkt);
+ return AVERROR_INVALIDDATA;
+ }
+ if (ea->audio_codec == AV_CODEC_ID_ADPCM_EA_R3)
+ pkt->duration = AV_RB32(pkt->data);
+ else
+ pkt->duration = AV_RL32(pkt->data);
+ break;
+ case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
+ pkt->duration = ret * 2 / ea->num_channels;
+ break;
+ case AV_CODEC_ID_PCM_S16LE_PLANAR:
+ case AV_CODEC_ID_MP3:
+ pkt->duration = num_samples;
+ break;
+ default:
+ pkt->duration = chunk_size / (ea->bytes * ea->num_channels);
}
packet_read = 1;
break;
/* ending tag */
+ case 0:
+ case ISNe_TAG:
case SCEl_TAG:
- ret = AVERROR_IO;
+ case SEND_TAG:
+ case SEEN_TAG:
+ ret = AVERROR(EIO);
packet_read = 1;
break;
- default:
- url_fseek(pb, chunk_size, SEEK_CUR);
+ case MVIh_TAG:
+ case kVGT_TAG:
+ case pQGT_TAG:
+ case TGQs_TAG:
+ case MADk_TAG:
+ key = AV_PKT_FLAG_KEY;
+ case MVIf_TAG:
+ case fVGT_TAG:
+ case MADm_TAG:
+ case MADe_TAG:
+ avio_seek(pb, -8, SEEK_CUR); // include chunk preamble
+ chunk_size += 8;
+ goto get_video_packet;
+
+ case mTCD_TAG:
+ if (chunk_size < 8)
+ return AVERROR_INVALIDDATA;
+
+ avio_skip(pb, 8); // skip ea DCT header
+ chunk_size -= 8;
+ goto get_video_packet;
+
+ case MV0K_TAG:
+ case MPCh_TAG:
+ case pIQT_TAG:
+ key = AV_PKT_FLAG_KEY;
+ case MV0F_TAG:
+get_video_packet:
+ if (!chunk_size)
+ continue;
+
+ ret = av_get_packet(pb, pkt, chunk_size);
+ if (ret < 0)
+ return ret;
+ pkt->stream_index = ea->video_stream_index;
+ pkt->flags |= key;
+ packet_read = 1;
break;
- }
- /* ending packet */
- if (chunk_type == SCEl_TAG) {
+ default:
+ avio_skip(pb, chunk_size);
+ break;
}
}
return ret;
}
-static int ea_read_close(AVFormatContext *s)
-{
-// EaDemuxContext *ea = (EaDemuxContext *)s->priv_data;
-
- return 0;
-}
-
-static AVInputFormat ea_iformat = {
- "ea",
- "Electronic Arts Multimedia Format",
- sizeof(EaDemuxContext),
- ea_probe,
- ea_read_header,
- ea_read_packet,
- ea_read_close,
+AVInputFormat ff_ea_demuxer = {
+ .name = "ea",
+ .long_name = NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia"),
+ .priv_data_size = sizeof(EaDemuxContext),
+ .read_probe = ea_probe,
+ .read_header = ea_read_header,
+ .read_packet = ea_read_packet,
};
-
-int ea_init(void)
-{
- av_register_input_format(&ea_iformat);
- return 0;
-}