X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Felectronicarts.c;h=ae2fda079fb1e97ee00db198cab398f22c3b30b1;hb=31f16dc1a16671a32c7aad45a0e0c38d2b0c74e8;hp=86d7f91e669198a39679d004c53a3ba5596e925b;hpb=ba87f0801d77c21eb1e4891ca1f846500bbb0939;p=ffmpeg diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c index 86d7f91e669..ae2fda079fb 100644 --- a/libavformat/electronicarts.c +++ b/libavformat/electronicarts.c @@ -2,20 +2,20 @@ * Copyright (c) 2004 The ffmpeg Project * Copyright (c) 2006-2008 Peter Ross * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * 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 2.1 of the License, or (at your option) any later version. * - * FFmpeg 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 FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -27,6 +27,7 @@ #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 */ @@ -62,14 +63,13 @@ typedef struct EaDemuxContext { int big_endian; - enum CodecID video_codec; + enum AVCodecID video_codec; AVRational time_base; int width, height; int video_stream_index; - enum CodecID audio_codec; + enum AVCodecID audio_codec; int audio_stream_index; - int audio_frame_counter; int bytes; int sample_rate; @@ -77,16 +77,16 @@ typedef struct EaDemuxContext { int num_samples; } EaDemuxContext; -static uint32_t read_arbitary(ByteIOContext *pb) { +static uint32_t read_arbitary(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; } @@ -102,25 +102,25 @@ static int process_audio_header_elements(AVFormatContext *s) { int inHeader = 1; EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; int compression_type = -1, revision = -1, revision2 = -1; ea->bytes = 2; ea->sample_rate = -1; ea->num_channels = 1; - while (inHeader) { + while (!pb->eof_reached && inHeader) { int inSubheader; uint8_t byte; - byte = get_byte(pb); + byte = avio_r8(pb); switch (byte) { case 0xFD: av_log (s, AV_LOG_DEBUG, "entered audio subheader\n"); inSubheader = 1; - while (inSubheader) { + while (!pb->eof_reached && inSubheader) { uint8_t subbyte; - subbyte = get_byte(pb); + subbyte = avio_r8(pb); switch (subbyte) { case 0x80: @@ -174,25 +174,25 @@ static int process_audio_header_elements(AVFormatContext *s) } switch (compression_type) { - case 0: ea->audio_codec = CODEC_ID_PCM_S16LE; break; - case 7: ea->audio_codec = CODEC_ID_ADPCM_EA; break; + 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 = CODEC_ID_ADPCM_EA_R1; break; - case 2: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break; - case 3: ea->audio_codec = CODEC_ID_ADPCM_EA_R3; break; + 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 = CODEC_ID_PCM_S16LE_PLANAR; break; - case 10: ea->audio_codec = CODEC_ID_ADPCM_EA_R2; break; - case 16: ea->audio_codec = CODEC_ID_MP3; break; + 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 = CODEC_ID_NONE; + ea->audio_codec = AV_CODEC_ID_NONE; av_log(s, AV_LOG_ERROR, "unsupported stream type; revision2=%i\n", revision2); return 0; } @@ -215,24 +215,24 @@ static int process_audio_header_elements(AVFormatContext *s) static int process_audio_header_eacs(AVFormatContext *s) { EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; int compression_type; - ea->sample_rate = ea->big_endian ? get_be32(pb) : get_le32(pb); - ea->bytes = get_byte(pb); /* 1=8-bit, 2=16-bit */ - ea->num_channels = get_byte(pb); - compression_type = get_byte(pb); - url_fskip(pb, 13); + 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 = CODEC_ID_PCM_S8; break; - case 2: ea->audio_codec = CODEC_ID_PCM_S16LE; break; + 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 = CODEC_ID_PCM_MULAW; ea->bytes = 1; break; - case 2: ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_EACS; 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); } @@ -247,12 +247,12 @@ static int process_audio_header_eacs(AVFormatContext *s) static int process_audio_header_sead(AVFormatContext *s) { EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; - ea->sample_rate = get_le32(pb); - ea->bytes = get_le32(pb); /* 1=8-bit, 2=16-bit */ - ea->num_channels = get_le32(pb); - ea->audio_codec = CODEC_ID_ADPCM_IMA_EA_SEAD; + 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; return 1; } @@ -260,28 +260,42 @@ static int process_audio_header_sead(AVFormatContext *s) static int process_video_header_mdec(AVFormatContext *s) { EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; - url_fskip(pb, 4); - ea->width = get_le16(pb); - ea->height = get_le16(pb); + 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 = CODEC_ID_MDEC; + ea->video_codec = AV_CODEC_ID_MDEC; return 1; } static int process_video_header_vp6(AVFormatContext *s) { EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; - url_fskip(pb, 16); - ea->time_base.den = get_le32(pb); - ea->time_base.num = get_le32(pb); - ea->video_codec = CODEC_ID_VP6; + 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; return 1; } +static int 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; + + return 0; +} + /* * Process EA file header * Returns 1 if the EA file is valid and successfully opened, 0 otherwise @@ -289,23 +303,23 @@ static int process_video_header_vp6(AVFormatContext *s) static int process_ea_header(AVFormatContext *s) { uint32_t blockid, size = 0; EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; int i; for (i=0; i<5 && (!ea->audio_codec || !ea->video_codec); i++) { - unsigned int startpos = url_ftell(pb); + unsigned int startpos = avio_tell(pb); int err = 0; - blockid = get_le32(pb); - size = get_le32(pb); + blockid = avio_rl32(pb); + size = avio_rl32(pb); if (i == 0) ea->big_endian = size > 0x000FFFFF; if (ea->big_endian) - size = bswap_32(size); + size = av_bswap32(size); switch (blockid) { case ISNh_TAG: - if (get_le32(pb) != EACS_TAG) { + if (avio_rl32(pb) != EACS_TAG) { av_log (s, AV_LOG_ERROR, "unknown 1SNh headerid\n"); return 0; } @@ -314,9 +328,9 @@ static int process_ea_header(AVFormatContext *s) { case SCHl_TAG : case SHEN_TAG : - blockid = get_le32(pb); + blockid = avio_rl32(pb); if (blockid == GSTR_TAG) { - url_fskip(pb, 4); + avio_skip(pb, 4); } else if ((blockid & 0xFFFF)!=PT00_TAG) { av_log (s, AV_LOG_ERROR, "unknown SCHl headerid\n"); return 0; @@ -329,13 +343,12 @@ static int process_ea_header(AVFormatContext *s) { break; case MVIh_TAG : - ea->video_codec = CODEC_ID_CMV; - ea->time_base = (AVRational){0,0}; + err = process_video_header_cmv(s); break; case kVGT_TAG: - ea->video_codec = CODEC_ID_TGV; - ea->time_base = (AVRational){0,0}; + ea->video_codec = AV_CODEC_ID_TGV; + ea->time_base = (AVRational){1, 15}; break; case mTCD_TAG : @@ -343,20 +356,20 @@ static int process_ea_header(AVFormatContext *s) { break; case MPCh_TAG: - ea->video_codec = CODEC_ID_MPEG2VIDEO; + ea->video_codec = AV_CODEC_ID_MPEG2VIDEO; break; case pQGT_TAG: case TGQs_TAG: - ea->video_codec = CODEC_ID_TGQ; + ea->video_codec = AV_CODEC_ID_TGQ; break; case pIQT_TAG: - ea->video_codec = CODEC_ID_TQI; + ea->video_codec = AV_CODEC_ID_TQI; break; case MADk_TAG : - ea->video_codec = CODEC_ID_MAD; + ea->video_codec = AV_CODEC_ID_MAD; break; case MVhd_TAG : @@ -369,10 +382,10 @@ static int process_ea_header(AVFormatContext *s) { return err; } - url_fseek(pb, startpos + size, SEEK_SET); + avio_seek(pb, startpos + size, SEEK_SET); } - url_fseek(pb, 0, SEEK_SET); + avio_seek(pb, 0, SEEK_SET); return 1; } @@ -399,8 +412,7 @@ static int ea_probe(AVProbeData *p) return AVPROBE_SCORE_MAX; } -static int ea_read_header(AVFormatContext *s, - AVFormatParameters *ap) +static int ea_read_header(AVFormatContext *s) { EaDemuxContext *ea = s->priv_data; AVStream *st; @@ -410,24 +422,44 @@ static int ea_read_header(AVFormatContext *s, if (ea->video_codec) { /* initialize the video decoder stream */ - st = av_new_stream(s, 0); + 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->time_base = ea->time_base; st->codec->width = ea->width; st->codec->height = ea->height; + avpriv_set_pts_info(st, 33, ea->time_base.num, ea->time_base.den); +#if FF_API_R_FRAME_RATE + st->r_frame_rate = +#endif + st->avg_frame_rate = (AVRational){ea->time_base.den, ea->time_base.num}; } if (ea->audio_codec) { + if (ea->num_channels <= 0) { + 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 = av_new_stream(s, 0); + st = avformat_new_stream(s, NULL); if (!st) return AVERROR(ENOMEM); - av_set_pts_info(st, 33, 1, ea->sample_rate); + 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 */ @@ -438,7 +470,7 @@ static int ea_read_header(AVFormatContext *s, 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; - ea->audio_frame_counter = 0; + st->start_time = 0; } return 1; @@ -448,7 +480,7 @@ static int ea_read_packet(AVFormatContext *s, AVPacket *pkt) { EaDemuxContext *ea = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; int ret = 0; int packet_read = 0; unsigned int chunk_type, chunk_size; @@ -456,50 +488,57 @@ static int ea_read_packet(AVFormatContext *s, int av_uninit(num_samples); while (!packet_read) { - chunk_type = get_le32(pb); - chunk_size = (ea->big_endian ? get_be32(pb) : get_le32(pb)) - 8; + 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*/ - url_fskip(pb, 32); + 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) { - url_fskip(pb, chunk_size); + avio_skip(pb, chunk_size); break; - } else if (ea->audio_codec == CODEC_ID_PCM_S16LE_PLANAR || - ea->audio_codec == CODEC_ID_MP3) { - num_samples = get_le32(pb); - url_fskip(pb, 8); + } 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; } ret = av_get_packet(pb, pkt, chunk_size); if (ret < 0) return ret; pkt->stream_index = ea->audio_stream_index; - pkt->pts = 90000; - pkt->pts *= ea->audio_frame_counter; - pkt->pts /= ea->sample_rate; switch (ea->audio_codec) { - case CODEC_ID_ADPCM_EA: - /* 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; + 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: + pkt->duration = AV_RL32(pkt->data); + break; + case AV_CODEC_ID_ADPCM_EA_R3: + pkt->duration = AV_RB32(pkt->data); + break; + case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: + pkt->duration = ret * 2 / ea->num_channels; break; - case CODEC_ID_PCM_S16LE_PLANAR: - case CODEC_ID_MP3: - ea->audio_frame_counter += num_samples; + case AV_CODEC_ID_PCM_S16LE_PLANAR: + case AV_CODEC_ID_MP3: + pkt->duration = num_samples; break; default: - ea->audio_frame_counter += chunk_size / - (ea->bytes * ea->num_channels); + pkt->duration = chunk_size / (ea->bytes * ea->num_channels); } packet_read = 1; @@ -525,12 +564,12 @@ static int ea_read_packet(AVFormatContext *s, case fVGT_TAG: case MADm_TAG: case MADe_TAG: - url_fseek(pb, -8, SEEK_CUR); // include chunk preamble + avio_seek(pb, -8, SEEK_CUR); // include chunk preamble chunk_size += 8; goto get_video_packet; case mTCD_TAG: - url_fseek(pb, 8, SEEK_CUR); // skip ea dct header + avio_skip(pb, 8); // skip ea dct header chunk_size -= 8; goto get_video_packet; @@ -549,7 +588,7 @@ get_video_packet: break; default: - url_fseek(pb, chunk_size, SEEK_CUR); + avio_skip(pb, chunk_size); break; } } @@ -557,11 +596,11 @@ get_video_packet: return ret; } -AVInputFormat ea_demuxer = { - "ea", - NULL_IF_CONFIG_SMALL("Electronic Arts Multimedia Format"), - sizeof(EaDemuxContext), - ea_probe, - ea_read_header, - ea_read_packet, +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, };