diff options
author | wm4 <wm4@nowhere> | 2012-08-06 17:46:42 +0200 |
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committer | wm4 <wm4@nowhere> | 2012-08-06 17:46:42 +0200 |
commit | 39593c138d505c0f99a5534d972a9c81fd676c4d (patch) | |
tree | 2f1db132336537be1919f133a57a0b3e941866af /screenshot.c | |
parent | 7aae399239d02e48de9060dded1d0232310d2141 (diff) | |
download | mpv-39593c138d505c0f99a5534d972a9c81fd676c4d.tar.bz2 mpv-39593c138d505c0f99a5534d972a9c81fd676c4d.tar.xz |
screenshot: move image writer code into new file image_writer.c
Diffstat (limited to 'screenshot.c')
-rw-r--r-- | screenshot.c | 220 |
1 files changed, 16 insertions, 204 deletions
diff --git a/screenshot.c b/screenshot.c index 2ed2734155..6c734f57b5 100644 --- a/screenshot.c +++ b/screenshot.c @@ -16,22 +16,12 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include <stdio.h> #include <stdlib.h> #include <string.h> -#include <inttypes.h> -#include <setjmp.h> #include <time.h> -#include <libswscale/swscale.h> -#include <libavcodec/avcodec.h> - #include "config.h" -#ifdef CONFIG_JPEG -#include <jpeglib.h> -#endif - #include "osdep/io.h" #include "talloc.h" @@ -42,16 +32,12 @@ #include "mp_msg.h" #include "metadata.h" #include "path.h" -#include "libmpcodecs/img_format.h" #include "libmpcodecs/mp_image.h" #include "libmpcodecs/dec_video.h" #include "libmpcodecs/vf.h" #include "libvo/video_out.h" +#include "image_writer.h" -#include "fmt-conversion.h" - -//for sws_getContextFromCmdLine_hq and mp_sws_set_colorspace -#include "libmpcodecs/vf_scale.h" #include "libvo/csputils.h" typedef struct screenshot_ctx { @@ -64,11 +50,6 @@ typedef struct screenshot_ctx { int frameno; } screenshot_ctx; -struct img_writer { - const char *file_ext; - int (*write)(screenshot_ctx *ctx, mp_image_t *image, FILE *fp); -}; - void screenshot_init(struct MPContext *mpctx) { mpctx->screenshot_ctx = talloc(mpctx, screenshot_ctx); @@ -78,143 +59,6 @@ void screenshot_init(struct MPContext *mpctx) }; } -static int write_png(screenshot_ctx *ctx, struct mp_image *image, FILE *fp) -{ - void *outbuffer = NULL; - int success = 0; - AVFrame *pic = NULL; - - struct AVCodec *png_codec = avcodec_find_encoder(CODEC_ID_PNG); - AVCodecContext *avctx = NULL; - if (!png_codec) - goto print_open_fail; - avctx = avcodec_alloc_context3(png_codec); - if (!avctx) - goto print_open_fail; - - avctx->time_base = AV_TIME_BASE_Q; - avctx->width = image->width; - avctx->height = image->height; - avctx->pix_fmt = PIX_FMT_RGB24; - avctx->compression_level = ctx->mpctx->opts.screenshot_png_compression; - - if (avcodec_open2(avctx, png_codec, NULL) < 0) { - print_open_fail: - mp_msg(MSGT_CPLAYER, MSGL_INFO, "Could not open libavcodec PNG encoder" - " for saving screenshot\n"); - goto error_exit; - } - - size_t outbuffer_size = image->width * image->height * 3 * 2; - outbuffer = malloc(outbuffer_size); - if (!outbuffer) - goto error_exit; - - pic = avcodec_alloc_frame(); - if (!pic) - goto error_exit; - avcodec_get_frame_defaults(pic); - for (int n = 0; n < 4; n++) { - pic->data[n] = image->planes[n]; - pic->linesize[n] = image->stride[n]; - } - int size = avcodec_encode_video(avctx, outbuffer, outbuffer_size, pic); - if (size < 1) - goto error_exit; - - fwrite(outbuffer, size, 1, fp); - - success = 1; -error_exit: - if (avctx) - avcodec_close(avctx); - av_free(avctx); - av_free(pic); - free(outbuffer); - return success; -} - -#ifdef CONFIG_JPEG - -static void write_jpeg_error_exit(j_common_ptr cinfo) -{ - // NOTE: do not write error message, too much effort to connect the libjpeg - // log callbacks with mplayer's log function mp_msp() - - // Return control to the setjmp point - longjmp(*(jmp_buf*)cinfo->client_data, 1); -} - -static int write_jpeg(screenshot_ctx *ctx, mp_image_t *image, FILE *fp) -{ - struct jpeg_compress_struct cinfo; - struct jpeg_error_mgr jerr; - - cinfo.err = jpeg_std_error(&jerr); - jerr.error_exit = write_jpeg_error_exit; - - jmp_buf error_return_jmpbuf; - cinfo.client_data = &error_return_jmpbuf; - if (setjmp(cinfo.client_data)) { - jpeg_destroy_compress(&cinfo); - return 0; - } - - jpeg_create_compress(&cinfo); - jpeg_stdio_dest(&cinfo, fp); - - cinfo.image_width = image->width; - cinfo.image_height = image->height; - cinfo.input_components = 3; - cinfo.in_color_space = JCS_RGB; - - jpeg_set_defaults(&cinfo); - jpeg_set_quality(&cinfo, ctx->mpctx->opts.screenshot_jpeg_quality, 1); - - jpeg_start_compress(&cinfo, TRUE); - - while (cinfo.next_scanline < cinfo.image_height) { - JSAMPROW row_pointer[1]; - row_pointer[0] = image->planes[0] + - cinfo.next_scanline * image->stride[0]; - jpeg_write_scanlines(&cinfo, row_pointer,1); - } - - jpeg_finish_compress(&cinfo); - - jpeg_destroy_compress(&cinfo); - - return 1; -} - -#endif - -static const struct img_writer img_writers[] = { - { "png", write_png }, -#ifdef CONFIG_JPEG - { "jpg", write_jpeg }, - { "jpeg", write_jpeg }, -#endif -}; - -static const struct img_writer *get_writer(screenshot_ctx *ctx) -{ - const char *type = ctx->mpctx->opts.screenshot_filetype; - - for (size_t n = 0; n < sizeof(img_writers) / sizeof(img_writers[0]); n++) { - const struct img_writer *writer = &img_writers[n]; - if (type && strcmp(type, writer->file_ext) == 0) - return writer; - } - - return &img_writers[0]; -} - -static int fexists(char *fname) -{ - return mp_path_exists(fname); -} - static char *stripext(void *talloc_ctx, const char *s) { const char *end = strrchr(s, '.'); @@ -379,14 +223,14 @@ error_exit: return NULL; } -static char *gen_fname(screenshot_ctx *ctx) +static char *gen_fname(screenshot_ctx *ctx, const char *file_ext) { int sequence = 0; for (;;) { int prev_sequence = sequence; char *fname = create_fname(ctx->mpctx, ctx->mpctx->opts.screenshot_template, - get_writer(ctx)->file_ext, + file_ext, &sequence, &ctx->frameno); @@ -397,7 +241,7 @@ static char *gen_fname(screenshot_ctx *ctx) return NULL; } - if (!fexists(fname)) + if (!mp_path_exists(fname)) return fname; if (sequence == prev_sequence) { @@ -414,54 +258,22 @@ static char *gen_fname(screenshot_ctx *ctx) void screenshot_save(struct MPContext *mpctx, struct mp_image *image) { screenshot_ctx *ctx = mpctx->screenshot_ctx; - const struct img_writer *writer = get_writer(ctx); - struct mp_image *allocated_image = NULL; - const int destfmt = IMGFMT_RGB24; - - if (image->imgfmt != destfmt) { - struct mp_image *dst = alloc_mpi(image->w, image->h, destfmt); - - struct SwsContext *sws = sws_getContextFromCmdLine_hq(image->width, - image->height, - image->imgfmt, - dst->width, - dst->height, - dst->imgfmt); - - struct mp_csp_details colorspace; - get_detected_video_colorspace(mpctx->sh_video, &colorspace); - // this is a property of the output device; images always use - // full-range RGB - colorspace.levels_out = MP_CSP_LEVELS_PC; - mp_sws_set_colorspace(sws, &colorspace); - - sws_scale(sws, (const uint8_t **)image->planes, image->stride, 0, - image->height, dst->planes, dst->stride); - - sws_freeContext(sws); - - allocated_image = dst; - image = dst; - } - char *filename = gen_fname(ctx); + struct mp_csp_details colorspace; + get_detected_video_colorspace(mpctx->sh_video, &colorspace); + + struct image_writer_opts opts = image_writer_opts_defaults; + opts.filetype = mpctx->opts.screenshot_filetype; + opts.jpeg_quality = mpctx->opts.screenshot_jpeg_quality; + opts.png_compression = mpctx->opts.screenshot_png_compression; + + char *filename = gen_fname(ctx, image_writer_file_ext(&opts)); if (filename) { - FILE *fp = fopen(filename, "wb"); - if (fp == NULL) { - mp_msg(MSGT_CPLAYER, MSGL_ERR, - "\nError opening '%s' for writing!\n", filename); - } else { - mp_msg(MSGT_CPLAYER, MSGL_INFO, "*** screenshot '%s' ***\n", - filename); - int success = writer->write(ctx, image, fp); - success = !fclose(fp) && success; - if (!success) - mp_msg(MSGT_CPLAYER, MSGL_ERR, "Error writing screenshot!\n"); - } + mp_msg(MSGT_CPLAYER, MSGL_INFO, "*** screenshot '%s' ***\n", filename); + if (!write_image(image, &colorspace, &opts, filename)) + mp_msg(MSGT_CPLAYER, MSGL_ERR, "\nError writing screenshot!\n"); talloc_free(filename); } - - free_mp_image(allocated_image); } static void vf_screenshot_callback(void *pctx, struct mp_image *image) |