libspeex: allow custom sample rates again.
[ffmpeg.git] / libavcodec / libopenjpegdec.c
index 4b3e8d6..5f3c36b 100644 (file)
  * JPEG 2000 decoding support via OpenJPEG
  * Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
-* @file
-* JPEG 2000 decoder using libopenjpeg
-*/
+ * @file
+ * JPEG 2000 decoder using libopenjpeg
+ */
 
-#include "libavutil/opt.h"
+#define  OPJ_STATIC
+#include <openjpeg.h>
+
+#include "libavutil/common.h"
+#include "libavutil/intreadwrite.h"
 #include "libavutil/imgutils.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/opt.h"
 #include "avcodec.h"
-#include "libavutil/intreadwrite.h"
 #include "thread.h"
-#define  OPJ_STATIC
-#include <openjpeg.h>
 
 #define JP2_SIG_TYPE    0x6A502020
 #define JP2_SIG_VALUE   0x0D0A870A
 
+// pix_fmts with lower bpp have to be listed before
+// similar pix_fmts with higher bpp.
+#define RGB_PIXEL_FORMATS   AV_PIX_FMT_RGB24,AV_PIX_FMT_RGBA,AV_PIX_FMT_RGB48,AV_PIX_FMT_RGBA64
+#define GRAY_PIXEL_FORMATS  AV_PIX_FMT_GRAY8,AV_PIX_FMT_GRAY8A,AV_PIX_FMT_GRAY16
+#define YUV_PIXEL_FORMATS   AV_PIX_FMT_YUV410P,AV_PIX_FMT_YUV411P,AV_PIX_FMT_YUVA420P, \
+                            AV_PIX_FMT_YUV420P,AV_PIX_FMT_YUV422P,AV_PIX_FMT_YUVA422P, \
+                            AV_PIX_FMT_YUV440P,AV_PIX_FMT_YUV444P,AV_PIX_FMT_YUVA444P, \
+                            AV_PIX_FMT_YUV420P9,AV_PIX_FMT_YUV422P9,AV_PIX_FMT_YUV444P9, \
+                            AV_PIX_FMT_YUVA420P9,AV_PIX_FMT_YUVA422P9,AV_PIX_FMT_YUVA444P9, \
+                            AV_PIX_FMT_YUV420P10,AV_PIX_FMT_YUV422P10,AV_PIX_FMT_YUV444P10, \
+                            AV_PIX_FMT_YUVA420P10,AV_PIX_FMT_YUVA422P10,AV_PIX_FMT_YUVA444P10, \
+                            AV_PIX_FMT_YUV420P12,AV_PIX_FMT_YUV422P12,AV_PIX_FMT_YUV444P12, \
+                            AV_PIX_FMT_YUV420P14,AV_PIX_FMT_YUV422P14,AV_PIX_FMT_YUV444P14, \
+                            AV_PIX_FMT_YUV420P16,AV_PIX_FMT_YUV422P16,AV_PIX_FMT_YUV444P16, \
+                            AV_PIX_FMT_YUVA420P16,AV_PIX_FMT_YUVA422P16,AV_PIX_FMT_YUVA444P16
+
+static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[]  = {RGB_PIXEL_FORMATS};
+static const enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {GRAY_PIXEL_FORMATS};
+static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[]  = {YUV_PIXEL_FORMATS};
+static const enum AVPixelFormat libopenjpeg_all_pix_fmts[]  = {RGB_PIXEL_FORMATS,GRAY_PIXEL_FORMATS,YUV_PIXEL_FORMATS};
+
 typedef struct {
     AVClass *class;
     opj_dparameters_t dec_params;
     AVFrame image;
-    int lowres;
     int lowqual;
 } LibOpenJPEGContext;
 
-static int check_image_attributes(opj_image_t *image)
+static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
+{
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int match = 1;
+
+    if (desc->nb_components != image->numcomps) {
+        return 0;
+    }
+
+    switch (desc->nb_components) {
+    case 4: match = match && desc->comp[3].depth_minus1 + 1 >= image->comps[3].prec &&
+                             1 == image->comps[3].dx &&
+                             1 == image->comps[3].dy;
+    case 3: match = match && desc->comp[2].depth_minus1 + 1 >= image->comps[2].prec &&
+                             1 << desc->log2_chroma_w == image->comps[2].dx &&
+                             1 << desc->log2_chroma_h == image->comps[2].dy;
+    case 2: match = match && desc->comp[1].depth_minus1 + 1 >= image->comps[1].prec &&
+                             1 << desc->log2_chroma_w == image->comps[1].dx &&
+                             1 << desc->log2_chroma_h == image->comps[1].dy;
+    case 1: match = match && desc->comp[0].depth_minus1 + 1 >= image->comps[0].prec &&
+                             1 == image->comps[0].dx &&
+                             1 == image->comps[0].dy;
+    default:
+        break;
+    }
+
+    return match;
+}
+
+static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
+    int index;
+    const enum AVPixelFormat *possible_fmts = NULL;
+    int possible_fmts_nb = 0;
+
+    switch (image->color_space) {
+    case CLRSPC_SRGB:
+        possible_fmts = libopenjpeg_rgb_pix_fmts;
+        possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
+        break;
+    case CLRSPC_GRAY:
+        possible_fmts = libopenjpeg_gray_pix_fmts;
+        possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
+        break;
+    case CLRSPC_SYCC:
+        possible_fmts = libopenjpeg_yuv_pix_fmts;
+        possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
+        break;
+    default:
+        possible_fmts = libopenjpeg_all_pix_fmts;
+        possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
+        break;
+    }
+
+    for (index = 0; index < possible_fmts_nb; ++index) {
+        if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
+            return possible_fmts[index];
+        }
+    }
+
+    return AV_PIX_FMT_NONE;
+}
+
+static inline int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt)
 {
-    return image->comps[0].dx == image->comps[1].dx &&
-           image->comps[1].dx == image->comps[2].dx &&
-           image->comps[0].dy == image->comps[1].dy &&
-           image->comps[1].dy == image->comps[2].dy &&
-           image->comps[0].prec == image->comps[1].prec &&
-           image->comps[1].prec == image->comps[2].prec;
+    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+    int i, component_plane;
+
+    if (pix_fmt == AV_PIX_FMT_GRAY16)
+        return 0;
+
+    component_plane = desc->comp[0].plane;
+    for (i = 1; i < desc->nb_components; i++) {
+        if (component_plane != desc->comp[i].plane)
+            return 0;
+    }
+    return 1;
+}
+
+static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
+    uint8_t *img_ptr;
+    int index, x, y, c;
+    for (y = 0; y < picture->height; y++) {
+        index = y*picture->width;
+        img_ptr = picture->data[0] + y*picture->linesize[0];
+        for (x = 0; x < picture->width; x++, index++) {
+            for (c = 0; c < image->numcomps; c++) {
+                *img_ptr++ = image->comps[c].data[index];
+            }
+        }
+    }
+}
+
+static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
+    uint16_t *img_ptr;
+    int index, x, y, c;
+    int adjust[4];
+    for (x = 0; x < image->numcomps; x++)
+        adjust[x] = FFMAX(FFMIN(16 - image->comps[x].prec, 8), 0);
+
+    for (y = 0; y < picture->height; y++) {
+        index = y*picture->width;
+        img_ptr = (uint16_t*) (picture->data[0] + y*picture->linesize[0]);
+        for (x = 0; x < picture->width; x++, index++) {
+            for (c = 0; c < image->numcomps; c++) {
+                *img_ptr++ = image->comps[c].data[index] << adjust[c];
+            }
+        }
+    }
+}
+
+static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
+    int *comp_data;
+    uint8_t *img_ptr;
+    int index, x, y;
+
+    for (index = 0; index < image->numcomps; index++) {
+        comp_data = image->comps[index].data;
+        for (y = 0; y < image->comps[index].h; y++) {
+            img_ptr = picture->data[index] + y * picture->linesize[index];
+            for (x = 0; x < image->comps[index].w; x++) {
+                *img_ptr = (uint8_t) *comp_data;
+                img_ptr++;
+                comp_data++;
+            }
+        }
+    }
+}
+
+static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
+    int *comp_data;
+    uint16_t *img_ptr;
+    int index, x, y;
+    for (index = 0; index < image->numcomps; index++) {
+        comp_data = image->comps[index].data;
+        for (y = 0; y < image->comps[index].h; y++) {
+            img_ptr = (uint16_t*) (picture->data[index] + y * picture->linesize[index]);
+            for (x = 0; x < image->comps[index].w; x++) {
+                *img_ptr = *comp_data;
+                img_ptr++;
+                comp_data++;
+            }
+        }
+    }
 }
 
 static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
@@ -58,6 +216,7 @@ static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
     LibOpenJPEGContext *ctx = avctx->priv_data;
 
     opj_set_default_decoder_parameters(&ctx->dec_params);
+    avcodec_get_frame_defaults(&ctx->image);
     avctx->coded_frame = &ctx->image;
     return 0;
 }
@@ -78,132 +237,152 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     int buf_size = avpkt->size;
     LibOpenJPEGContext *ctx = avctx->priv_data;
     AVFrame *picture = &ctx->image, *output = data;
+    const AVPixFmtDescriptor *desc;
     opj_dinfo_t *dec;
     opj_cio_t *stream;
     opj_image_t *image;
-    int width, height, has_alpha = 0, ret = -1;
-    int x, y, index;
-    uint8_t *img_ptr;
-    int adjust[4];
+    int width, height, ret = -1;
+    int pixel_size = 0;
+    int ispacked = 0;
+    int i;
 
     *data_size = 0;
 
     // Check if input is a raw jpeg2k codestream or in jp2 wrapping
-    if((AV_RB32(buf) == 12) &&
-       (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
-       (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
+    if ((AV_RB32(buf)     == 12)           &&
+        (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
+        (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
         dec = opj_create_decompress(CODEC_JP2);
     } else {
-        // If the AVPacket contains a jp2c box, then skip to
-        // the starting byte of the codestream.
+        /* If the AVPacket contains a jp2c box, then skip to
+         * the starting byte of the codestream. */
         if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
             buf += 8;
         dec = opj_create_decompress(CODEC_J2K);
     }
 
-    if(!dec) {
+    if (!dec) {
         av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
         return -1;
     }
     opj_set_event_mgr((opj_common_ptr)dec, NULL, NULL);
-
     ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
-    ctx->dec_params.cp_reduce = ctx->lowres;
-    ctx->dec_params.cp_layer  = ctx->lowqual;
+    ctx->dec_params.cp_layer          = ctx->lowqual;
     // Tie decoder with decoding parameters
     opj_setup_decoder(dec, &ctx->dec_params);
     stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
-    if(!stream) {
-        av_log(avctx, AV_LOG_ERROR, "Codestream could not be opened for reading.\n");
+
+    if (!stream) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Codestream could not be opened for reading.\n");
         opj_destroy_decompress(dec);
         return -1;
     }
 
-    // Decode the header only
+    // Decode the header only.
     image = opj_decode_with_info(dec, stream, NULL);
     opj_cio_close(stream);
-    if(!image) {
+
+    if (!image) {
         av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
         opj_destroy_decompress(dec);
         return -1;
     }
+
     width  = image->x1 - image->x0;
     height = image->y1 - image->y0;
 
-    if (ctx->lowres) {
-        width  = (width + (1 << ctx->lowres) - 1) >> ctx->lowres;
-        height = (height + (1 << ctx->lowres) - 1) >> ctx->lowres;
+    if (av_image_check_size(width, height, 0, avctx) < 0) {
+        av_log(avctx, AV_LOG_ERROR,
+               "%dx%d dimension invalid.\n", width, height);
+        goto done;
     }
 
-    if(av_image_check_size(width, height, 0, avctx) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "%dx%d dimension invalid.\n", width, height);
+    avcodec_set_dimensions(avctx, width, height);
+
+    if (avctx->pix_fmt != AV_PIX_FMT_NONE)
+        if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
+            avctx->pix_fmt = AV_PIX_FMT_NONE;
+
+    if (avctx->pix_fmt == AV_PIX_FMT_NONE)
+        avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
+
+    if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
+        av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format\n");
         goto done;
     }
-    avcodec_set_dimensions(avctx, width, height);
+    for (i = 0; i < image->numcomps; i++)
+        if (image->comps[i].prec > avctx->bits_per_raw_sample)
+            avctx->bits_per_raw_sample = image->comps[i].prec;
 
-    switch(image->numcomps)
-    {
-        case 1:  avctx->pix_fmt = PIX_FMT_GRAY8;
-                 break;
-        case 3:  if(check_image_attributes(image)) {
-                     avctx->pix_fmt = PIX_FMT_RGB24;
-                 } else {
-                     avctx->pix_fmt = PIX_FMT_GRAY8;
-                     av_log(avctx, AV_LOG_ERROR, "Only first component will be used.\n");
-                 }
-                 break;
-        case 4:  has_alpha = 1;
-                 avctx->pix_fmt = PIX_FMT_RGBA;
-                 break;
-        default: av_log(avctx, AV_LOG_ERROR, "%d components unsupported.\n", image->numcomps);
-                 goto done;
-    }
-
-    if(picture->data[0])
+    if (picture->data[0])
         ff_thread_release_buffer(avctx, picture);
 
-    if(ff_thread_get_buffer(avctx, picture) < 0){
+    if (ff_thread_get_buffer(avctx, picture) < 0) {
         av_log(avctx, AV_LOG_ERROR, "ff_thread_get_buffer() failed\n");
-        return -1;
+        goto done;
     }
 
-    ff_thread_finish_setup(avctx);
-
     ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
-    // Tie decoder with decoding parameters
+    ctx->dec_params.cp_reduce = avctx->lowres;
+    // Tie decoder with decoding parameters.
     opj_setup_decoder(dec, &ctx->dec_params);
     stream = opj_cio_open((opj_common_ptr)dec, buf, buf_size);
-    if(!stream) {
-        av_log(avctx, AV_LOG_ERROR, "Codestream could not be opened for reading.\n");
-        opj_destroy_decompress(dec);
-        return -1;
+    if (!stream) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Codestream could not be opened for reading.\n");
+        goto done;
     }
 
+    opj_image_destroy(image);
     // Decode the codestream
     image = opj_decode_with_info(dec, stream, NULL);
     opj_cio_close(stream);
 
-    for(x = 0; x < image->numcomps; x++) {
-        adjust[x] = FFMAX(image->comps[x].prec - 8, 0);
+    if (!image) {
+        av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
+        goto done;
     }
 
-    for(y = 0; y < avctx->height; y++) {
-        index = y*avctx->width;
-        img_ptr = picture->data[0] + y*picture->linesize[0];
-        for(x = 0; x < avctx->width; x++, index++) {
-            *img_ptr++ = image->comps[0].data[index] >> adjust[0];
-            if(image->numcomps > 2 && check_image_attributes(image)) {
-                *img_ptr++ = image->comps[1].data[index] >> adjust[1];
-                *img_ptr++ = image->comps[2].data[index] >> adjust[2];
-                if(has_alpha)
-                    *img_ptr++ = image->comps[3].data[index] >> adjust[3];
-            }
+    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
+    pixel_size = desc->comp[0].step_minus1 + 1;
+    ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
+
+    switch (pixel_size) {
+    case 1:
+        if (ispacked) {
+            libopenjpeg_copy_to_packed8(picture, image);
+        } else {
+            libopenjpeg_copyto8(picture, image);
         }
+        break;
+    case 2:
+        if (ispacked) {
+            libopenjpeg_copy_to_packed8(picture, image);
+        } else {
+            libopenjpeg_copyto16(picture, image);
+        }
+        break;
+    case 3:
+    case 4:
+        if (ispacked) {
+            libopenjpeg_copy_to_packed8(picture, image);
+        }
+        break;
+    case 6:
+    case 8:
+        if (ispacked) {
+            libopenjpeg_copy_to_packed16(picture, image);
+        }
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "unsupported pixel size %d\n", pixel_size);
+        goto done;
     }
 
     *output    = ctx->image;
     *data_size = sizeof(AVPicture);
-    ret = buf_size;
+    ret        = buf_size;
 
 done:
     opj_image_destroy(image);
@@ -215,17 +394,16 @@ static av_cold int libopenjpeg_decode_close(AVCodecContext *avctx)
 {
     LibOpenJPEGContext *ctx = avctx->priv_data;
 
-    if(ctx->image.data[0])
+    if (ctx->image.data[0])
         ff_thread_release_buffer(avctx, &ctx->image);
-    return 0 ;
+    return 0;
 }
 
 #define OFFSET(x) offsetof(LibOpenJPEGContext, x)
 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
 
 static const AVOption options[] = {
-    { "lowqual",       "Limit the number of layers used for decoding",         OFFSET(lowqual),        AV_OPT_TYPE_INT,   { 0 }, 0, INT_MAX, VD },
-    { "lowres",        "Lower the decoding resolution by a power of two",      OFFSET(lowres),         AV_OPT_TYPE_INT,   { 0 }, 0, INT_MAX, VD },
+    { "lowqual", "Limit the number of layers used for decoding",    OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
     { NULL },
 };
 
@@ -239,13 +417,14 @@ static const AVClass class = {
 AVCodec ff_libopenjpeg_decoder = {
     .name             = "libopenjpeg",
     .type             = AVMEDIA_TYPE_VIDEO,
-    .id               = CODEC_ID_JPEG2000,
+    .id               = AV_CODEC_ID_JPEG2000,
     .priv_data_size   = sizeof(LibOpenJPEGContext),
     .init             = libopenjpeg_decode_init,
     .close            = libopenjpeg_decode_close,
     .decode           = libopenjpeg_decode_frame,
     .capabilities     = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
-    .long_name        = NULL_IF_CONFIG_SMALL("OpenJPEG based JPEG 2000 decoder"),
+    .max_lowres       = 31,
+    .long_name        = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
     .priv_class       = &class,
     .init_thread_copy = ONLY_IF_THREADS_ENABLED(libopenjpeg_decode_init_thread_copy),
 };