From f7813a5324be39d13ab536c245d15dfc602a7849 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Sun, 29 Dec 2013 12:19:38 +0000 Subject: basic type mechanism working --- ffmpeg/libavformat/img2enc.c | 86 ++++++++++++++++++++++++++++++++++---------- 1 file changed, 67 insertions(+), 19 deletions(-) (limited to 'ffmpeg/libavformat/img2enc.c') diff --git a/ffmpeg/libavformat/img2enc.c b/ffmpeg/libavformat/img2enc.c index 67b5819..f61b0ca 100644 --- a/ffmpeg/libavformat/img2enc.c +++ b/ffmpeg/libavformat/img2enc.c @@ -21,6 +21,7 @@ */ #include "libavutil/intreadwrite.h" +#include "libavutil/avassert.h" #include "libavutil/avstring.h" #include "libavutil/log.h" #include "libavutil/opt.h" @@ -28,7 +29,6 @@ #include "avformat.h" #include "avio_internal.h" #include "internal.h" -#include "libavutil/opt.h" typedef struct { const AVClass *class; /**< Class for private options. */ @@ -36,7 +36,9 @@ typedef struct { int is_pipe; int split_planes; /**< use independent file for each Y, U, V plane */ char path[1024]; - int updatefirst; + int update; + int use_strftime; + const char *muxer; } VideoMuxData; static int write_header(AVFormatContext *s) @@ -44,7 +46,6 @@ static int write_header(AVFormatContext *s) VideoMuxData *img = s->priv_data; AVStream *st = s->streams[0]; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(st->codec->pix_fmt); - const char *str; av_strlcpy(img->path, s->filename, sizeof(img->path)); @@ -54,14 +55,17 @@ static int write_header(AVFormatContext *s) else img->is_pipe = 1; - str = strrchr(img->path, '.'); - img->split_planes = str - && !av_strcasecmp(str + 1, "y") - && s->nb_streams == 1 - && st->codec->codec_id == AV_CODEC_ID_RAWVIDEO - && desc - &&(desc->flags & PIX_FMT_PLANAR) - && desc->nb_components >= 3; + if (st->codec->codec_id == AV_CODEC_ID_GIF) { + img->muxer = "gif"; + } else if (st->codec->codec_id == AV_CODEC_ID_RAWVIDEO) { + const char *str = strrchr(img->path, '.'); + img->split_planes = str + && !av_strcasecmp(str + 1, "y") + && s->nb_streams == 1 + && desc + &&(desc->flags & AV_PIX_FMT_FLAG_PLANAR) + && desc->nb_components >= 3; + } return 0; } @@ -75,8 +79,19 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) int i; if (!img->is_pipe) { - if (av_get_frame_filename(filename, sizeof(filename), - img->path, img->img_number) < 0 && img->img_number > 1 && !img->updatefirst) { + if (img->update) { + av_strlcpy(filename, img->path, sizeof(filename)); + } else if (img->use_strftime) { + time_t now0; + struct tm *tm; + time(&now0); + tm = localtime(&now0); + if (!strftime(filename, sizeof(filename), img->path, tm)) { + av_log(s, AV_LOG_ERROR, "Could not get frame filename with strftime\n"); + return AVERROR(EINVAL); + } + } else if (av_get_frame_filename(filename, sizeof(filename), img->path, img->img_number) < 0 && + img->img_number > 1) { av_log(s, AV_LOG_ERROR, "Could not get frame filename number %d from pattern '%s' (either set updatefirst or use a pattern like %%03d within the filename pattern)\n", img->img_number, img->path); @@ -91,7 +106,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) if (!img->split_planes || i+1 >= desc->nb_components) break; - filename[strlen(filename) - 1] = ((int[]){'U','V','A','x'})[i]; + filename[strlen(filename) - 1] = "UVAx"[i]; } } else { pb[0] = s->pb; @@ -99,7 +114,7 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) if (img->split_planes) { int ysize = codec->width * codec->height; - int usize = ((-codec->width)>>desc->log2_chroma_w) * ((-codec->height)>>desc->log2_chroma_h); + int usize = FF_CEIL_RSHIFT(codec->width, desc->log2_chroma_w) * FF_CEIL_RSHIFT(codec->height, desc->log2_chroma_h); if (desc->comp[0].depth_minus1 >= 8) { ysize *= 2; usize *= 2; @@ -113,6 +128,37 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) avio_write(pb[3], pkt->data + ysize + 2*usize, ysize); avio_close(pb[3]); } + } else if (img->muxer) { + int ret; + AVStream *st; + AVPacket pkt2 = {0}; + AVFormatContext *fmt = NULL; + + av_assert0(!img->split_planes); + + ret = avformat_alloc_output_context2(&fmt, NULL, img->muxer, s->filename); + if (ret < 0) + return ret; + st = avformat_new_stream(fmt, NULL); + if (!st) { + avformat_free_context(fmt); + return AVERROR(ENOMEM); + } + st->id = pkt->stream_index; + + fmt->pb = pb[0]; + if ((ret = av_copy_packet(&pkt2, pkt)) < 0 || + (ret = av_dup_packet(&pkt2)) < 0 || + (ret = avcodec_copy_context(st->codec, s->streams[0]->codec)) < 0 || + (ret = avformat_write_header(fmt, NULL)) < 0 || + (ret = av_interleaved_write_frame(fmt, &pkt2)) < 0 || + (ret = av_write_trailer(fmt)) < 0) { + av_free_packet(&pkt2); + avformat_free_context(fmt); + return ret; + } + av_free_packet(&pkt2); + avformat_free_context(fmt); } else { avio_write(pb[0], pkt->data, pkt->size); } @@ -128,8 +174,10 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt) #define OFFSET(x) offsetof(VideoMuxData, x) #define ENC AV_OPT_FLAG_ENCODING_PARAM static const AVOption muxoptions[] = { - { "updatefirst", "update the first image file", OFFSET(updatefirst), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC }, - { "start_number", "set first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 1, INT_MAX, ENC }, + { "updatefirst", "continuously overwrite one file", OFFSET(update), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC }, + { "update", "continuously overwrite one file", OFFSET(update), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC }, + { "start_number", "set first number in the sequence", OFFSET(img_number), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, ENC }, + { "strftime", "use strftime for filename", OFFSET(use_strftime), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, ENC }, { NULL }, }; @@ -145,8 +193,8 @@ AVOutputFormat ff_image2_muxer = { .name = "image2", .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"), .extensions = "bmp,dpx,jls,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png," - "ppm,sgi,tga,tif,tiff,jp2,j2c,xwd,sun,ras,rs,im1,im8,im24," - "sunras,xbm,xface", + "ppm,sgi,tga,tif,tiff,jp2,j2c,j2k,xwd,sun,ras,rs,im1,im8,im24," + "sunras,webp,xbm,xface", .priv_data_size = sizeof(VideoMuxData), .video_codec = AV_CODEC_ID_MJPEG, .write_header = write_header, -- cgit v1.2.3